Today's Message Index:
----------------------
1. 04:02 AM - Re: I've sworn off purge valve installations (Doug Gray)
2. 04:19 AM - Re: Facet Pump Failure (Jim Sears)
3. 05:02 AM - Re: I've sworn off purge valve installations (Bob)
4. 05:12 AM - Re: I've sworn off purge valve installations (Charlie Kuss)
5. 05:34 AM - Re: I've sworn off purge valve installations ()
6. 06:25 AM - Re: Facet Pump Failure (Ed Bundy)
7. 06:46 AM - Re: Facet Pump Failure (RV6 Flyer)
8. 07:05 AM - Re: Facet Pump Failure (Sam Buchanan)
9. 07:42 AM - Fort Collins, CO area flight (Tim Bryan)
10. 08:22 AM - Re: Re: I've sworn off purge valve installations (D.Bristol)
11. 09:09 AM - Re: Re: I've sworn off purge valve installations (Jeff Dowling)
12. 09:36 AM - Re: N616TB (RV-6) Flies (Charles Rowbotham)
13. 09:48 AM - Re: Facet Pump Failure (joelrhaynes@aol.com)
14. 10:08 AM - Re: Fort Collins, CO area flight (Ron Lee)
15. 10:36 AM - Re: Re: I've sworn off purge valve installations (Stewart, Michael (ISS Atlanta))
16. 11:43 AM - FW: RV-6/7/9 Seats For Sale (Robin Marks)
17. 01:04 PM - Re: Fort Collins, CO area flight (joelrhaynes@aol.com)
18. 02:26 PM - Re: Re: I've sworn off purge valve installations (don wentz)
19. 05:39 PM - Re: Re: Fort Collins, CO area flight (Tim Bryan)
20. 05:45 PM - Re: Fort Collins, CO area flight (Sherman Butler)
21. 05:56 PM - Re: FW: RV-6/7/9 Seats For Sale *** SOLD *** (Robin Marks)
22. 06:52 PM - RV 7 Wing alignment (Sherman Butler)
23. 06:55 PM - [ John W. Cox ] : New Email List Photo Share Available! (Email List Photo Shares)
24. 07:04 PM - [ Alf Olav Frog / Norway ] : New Email List Photo Share Available! (Email List Photo Shares)
25. 07:38 PM - Re: RV 7 Wing alignment (Bob Collins)
26. 07:44 PM - [ Clive Whittfield ] : New Email List Photo Share Available! (Email List Photo Shares)
27. 08:27 PM - Re: Facet Pump Failure (Bill Schlatterer)
28. 09:34 PM - Re: RV 7 Wing alignment (Jim Jewell)
29. 11:42 PM - Re: Facet Pump Failure (Vanremog@aol.com)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: I've sworn off purge valve installations |
--> RV-List message posted by: Doug Gray <dgra1233@bigpond.net.au>
I think the critical factor here is that the tube is unsupported. I
suspect a clamp or two would have significantly reduced vibration in the
tube and prevented the cracking.
What type of fuel valve failed.
Doug Gray
>
> On my RV-6 I had the purge vale return line running into the cockpit
> and into a tee on the fuel inlet near the tank selector switch. AFP
> recommends this returning back to the tank, but I felt this to be too
> complex an installation. One day, while scudding back from SnF, close
> to home base, with Michelle in the right seat, the engine coughed and
> would barely run. I managed to limp home. After weeks of
> troubleshooting, it turned out that I had a crack in a tube FWF on the
> purge return line. This crack was allowing air into the return line,
> and hence air into the fuel flow to the engine. After this incident I
> decided on my next plane, I would NOT put the purge return line into
> the fuel supply system. This failure could have put me and my wife in
> the trees.
>
>
>
> On my 8, I ran the purge return into the left tank vent. Thought
> being, let the vapors and a little fuel run to the ground. Dont let a
> line leak here spoil my fuel. So on a trip last week with several RVs
> and wifes to NYC for a play and a movie, plane died on landing rollout
> in NJ. ARGH! We finished our weekend getaway with the wifes, but on
> Sunday I put wife on a Delta flight home and began troubleshooting.
> What I found was the plane was way lean in running and would barely
> idle below 1500. I removed the fuel inlet to the servo and there was
> plenty of fuel going in, but the engine was not getting it. I checked
> screens and a few other things and no joy. I decided it was the servo
> not metering the fuel properly. I finally decided I try taking off and
> climbing to altitude and see if mother nature would richen it with
> altitude. Sure enough, around 7k I would get egts at peak, and at
> 10k I could run a little ROP. BUT the fuel flow was +4gph more than
> normal. How could that be? I dunno, but it was running smooth and I
> flew her home to Atlanta.
>
>
>
> Safe in my own hanger, I removed the servo and flow divider and sent
> it to AFP. Don returned it with no problem found. ARGH! Spent the
> weekend troubleshooting and found the problem. The Purge valve was
> leaking internally and some fuel was by passing and going to the
> return side. Actually a lot of fuel was going to the return. This was
> causing lean operation and high fuel flow. I have now sent this to AFP
> for repair. I also suspect that this valve has been sending fuel to
> the return all along in the past 300 hours. I have gotten from day 1,
> and unexplained +1.5gph with my boost pump on.
>
>
>
> In a couple thousand hours of RV injected operation in multiple
> aircraft, I have not found I needed this purge valve function for hot
> starts. In fact all I really use it for is to shut down the engine.
> Hot starts are easily handled with proper technique. I have now sworn
> off this purge valve madness as it provides no value in an RV and
> multiple failure modes.
>
>
>
> Thought some of you might find this information useful.
>
> Best,
>
> Mike Stewart
>
>
>
>
>
>
>
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Facet Pump Failure |
--> RV-List message posted by: "Jim Sears" <jmsears@adelphia.net>
I guess this thread concerns the little square Facet pump that Van pushes.
I sounds like it's a touchy little critter that I'd not want in my airplane.
I have one of the cylindrical Facets, like those found in the ACS catalog.
It's worked quite well in about 400 hours of flying. The one I had in my
Grumman-American Cheetah had never been replaced. The Cheetah had about
fifteen hundred hours on it, when I sold it. This unit has a screen inside
to catch dirt, a magnet on the bottom to catch metal, and a removable bottom
that allows one to inspect it. It may be a good alternative for the ones
who are having problems with the little square pump. You'd have to do some
plumbing work to install it, though. Those not at the point of installing
the pump may look at these as an alternative. Get the anti-syphon version.
There is one that fits well with our lines; but, I don't think ACS has it.
One of the contributors told us about it, a long time ago. It's in the
archives. With the ACS version, one has to downsize to a smaller nipple
size at the pump. No big deal; but, the other pump would be better.
Oh, yeah. I have my fuel pump mounted on the engine side of the firewall.
I didn't like the idea of having one in the cockpit with me. At annual
time, it's easier to get to for inspection while I'm looking at the engine
and lines.
Jim Sears in KY
RV-6A N198JS (Scooter)
RV-7A #70317 (Very slowly working on the fuse)
EAA Tech Counselor
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: I've sworn off purge valve installations |
--> RV-List message posted by: Bob <panamared3@brier.net>
I have an IO -360 and hot starts are a problem for me. I have actually had
to take the cowl off to let the fuel lines cool down before I could fly
home. I even had Dan Rivera of Airflow Performance coach me, will little
improvement in hot starts.
Inconvenience, well I just did not fly from June through September before I
put in the purge valve. Slowly I have been trying various techniques and
systems to improve the hot starts and reduce vapor lock. The purge valve
helps. Smaller fuel restrictors also help.
As far as fuel lines go, all my lines FWF are flexible lines except for the
the stainless lines from the spider to the cylinders. If you use the
Airflow Performance system it is pretty straight forward and about as
simple as a purge valve can be.
My recommendation, if you don't have problems with hot starts, you don't
need a purge valve.
Bob
At 04:54 PM 10/2/06, you wrote:
>Thanks for the writeup, Mike-
>
>In deference to the KISS principle, how much hard evidence/experience is
>there to support installation of a purge valve in an RV as opposed to
>certified a/c where it may really be needed? Anyone tried starting their
>hot IOs without it or done any actual testing to determine if it is really
>a necessity, or something one "might" need once or twice a year under
>worst conditions? Thinking here is to reduce fuel lines/fittings in a
>REALLY bad spot to have a failure (and extra co$t) vs. a rare
>inconvenience which is not a safety-of-flight issue...
>
>Mark do not archive
>
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | I've sworn off purge valve installations |
Mike,
I have to agree with the other lister who suggested that your use
of bulkhead connections mounted to the baffles is the most likely
cause of your cracked tube problems. Due to the fact that the baffles
are not supported at their top edge, they will vibrate at a frequency
which differs from the rest of the engine. This will cause flexing of
the lines ( be they SS, 3003 Versitube or 5052-T0 ). You also
aggravated the situation (judging from your photo) by the way you
bent that inboard tube. Your outer tube is formed the proper way. In
high vibration environments, it is unwise to "cut the corner" with a
tubing run. Big radius bends are better than small radius bends.
Often, a service loop of tubing is advised, to help absorb vibration.
Regardless of these secondary issues, the best choice would have been
to use flex hose. Tubing is impractical in this area, because there
is no practical place to mount a bracket for the bulkhead fittings to
the engine itself.
The purge valve is mounted to the crankcases. The cylinders
vibratory movement also differs from the crankcases, so even a
bulkhead plate mounted to a cylinder would eventually cause a tubing
failure near the bulkhead fitting B nut..
Charlie Kuss
>It would have been. But late in the build cycle, I met and became
>best friends with a Delta mechanic who came into my project late and
>nearing the first flight. He said "I aint letting you up there with
>that el cheapo "Oh" tube as he called it. He proceeded to rip out
>every soft aluminum tube I had and replaced it with stainless steel.
>Every piece! Dozens of them! He was a master with this stuff and
>could take a couple measurements with a steel ruler, and come back
>with a perfectly fitted SS aircraft tube ready to go. Years in the
>hydraulics shop at the Delta hub here in Atlanta and I guess you get
>pretty good with this stuff. So I originally had in this picture
>here soft 3003, but it was replaced with stainless steel. I pointed
>the arrow to where the crack was. Right behind the b-nut sleeve.
>Again the pic, from a vintage late 90's digital camera that only
>geeks were using at the time, is of soft tube but it was SS that
>cracked ~800 hours as I recall.
><http://www.mstewart.net/deletesoon/engtopcrack.jpg>http://www.mstewart.net/deletesoon/engtopcrack.jpg
>
>My theory was that flex line should absolutely have been installed
>here. That spider was no doubt bobbing around hung out there so far,
>while the rear baffle was not moving much at all I suspect.
>
>Mike
>
>
>----------
>From: owner-rv-list-server@matronics.com
>[mailto:owner-rv-list-server@matronics.com] On Behalf Of Charlie Kuss
>Sent: Monday, October 02, 2006 11:49 AM
>To: rv-list@matronics.com
>Subject: Re: RV-List: I've sworn off purge valve installations
>
>Mike
> Thanks for your report. Could you tell me what type of aluminum
> tubing you had used on your previous RV? Was it the 3003 Versitube
> which Vans supplies? Or something else. Do you have any theory on
> why that fuel line cracked?
>Charlie Kuss
>
>
>After my second failure in a couple thousand hours of running fuel
>injection with pruge valves, I have concluded they are unnecessary
>and can have multiple failure modes that can bring you down.
>As many of you know Airflow Performance of Spartanburg SC sells a
>terrific fuel injection system for all kinds of engines. from boats,
>to dragsters, to planes. I have had their system on 2 RV's and have
>had 2 failures in the purge system. The purpose in the purge valve
>is simple. On a hot start, pull the valve, turn your pump on, and
>allow the hot vapors out for a few seconds. Close the valve and
>start your normal hot start procedures.
>
>On my RV-6 I had the purge vale return line running into the cockpit
>and into a tee on the fuel inlet near the tank selector switch. AFP
>recommends this returning back to the tank, but I felt this to be
>too complex an installation. One day, while scudding back from SnF,
>close to home base, with Michelle in the right seat, the engine
>coughed and would barely run. I managed to limp home. After weeks of
>troubleshooting, it turned out that I had a crack in a tube FWF on
>the purge return line. This crack was allowing air into the return
>line, and hence air into the fuel flow to the engine. After this
>incident I decided on my next plane, I would NOT put the purge
>return line into the fuel supply system. This failure could have put
>me and my wife in the trees.
>
>On my 8, I ran the purge return into the left tank vent. Thought
>being, let the vapors and a little fuel run to the ground. Don't let
>a line leak here spoil my fuel. So on a trip last week with several
>RV's and wifes to NYC for a play and a movie, plane died on landing
>rollout in NJ. ARGH! We finished our weekend getaway with the
>wife's, but on Sunday I put wife on a Delta flight home and began
>troubleshooting. What I found was the plane was way lean in running
>and would barely idle below 1500. I removed the fuel inlet to the
>servo and there was plenty of fuel going in, but the engine was not
>getting it. I checked screens and a few other things and no joy. I
>decided it was the servo not metering the fuel properly. I finally
>decided I try taking off and climbing to altitude and see if mother
>nature would richen it with altitude. Sure enough, around 7k' I
>would get egt's at peak, and at 10k' I could run a little ROP. BUT
>the fuel flow was +4gph more than normal. How could that be? I
>dunno, but it was running smooth and I flew her home to Atlanta.
>
>Safe in my own hanger, I removed the servo and flow divider and
>sent it to AFP. Don returned it with no problem found. ARGH! Spent
>the weekend troubleshooting and found the problem. The Purge valve
>was leaking internally and some fuel was by passing and going to the
>return side. Actually a lot of fuel was going to the return. This
>was causing lean operation and high fuel flow. I have now sent this
>to AFP for repair. I also suspect that this valve has been sending
>fuel to the return all along in the past 300 hours. I have gotten
>from day 1, and unexplained +1.5gph with my boost pump on.
>
>In a couple thousand hours of RV injected operation in multiple
>aircraft, I have not found I needed this purge valve function for
>hot starts. In fact all I really use it for is to shut down the
>engine. Hot starts are easily handled with proper technique. I have
>now sworn off this purge valve madness as it provides no value in an
>RV and multiple failure modes.
>
>Thought some of you might find this information useful.
>Best,
>Mike Stewart
>
>
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: I've sworn off purge valve installations |
--> RV-List message posted by: <ronschreck@windstream.net>
I have been flying the AFP controller with purge valve for almost 140 hours now
and have come to the conclusion that the purge valve is not required on hot starts.
I turn the engine over with the mixture full lean until it fires and slowly
move to rich as it smoothes out. I do use the purge valve for shutdown
as the mixture does not fully shut off fuel delivery to the engine. I have run
hose from the purge valve, through the baffles to a bulkhead fitting on the
firewall. No hard fuel lines firewall forward.
Ron Schreck
RV-8, "Miss Izzy"
Gold Hill Airpark, NC
av8er2fly@peoplepc.com wrote: > What would your normal start be with out the purge
valve? I do not > have a purge valve but was considering putting one on because
of real > hard hot starts. Any Ideas would be appreciated. Mark Rose RV8A
> 137MR IO360 85 fun Hrs. > Well, it all depends on what's causing the hard
starts when hot. This will take some sleuthing on your part. The problem may be
that it takes some extra pump time to fully pressurize the system and get fuel
through the injectors. The problem may not be vapor in the lines. When you
have a hot start problem have someone look at the exhaust. If you see vapor (think
the wavy view of the air down a hot road) and it doesn't start than it's
too rich and when it does start then you'll see black smoke out the exhaust. If
you don't see anything, keep hitting the boost pump ..... keeping track of how
long the total pump run is ..... a second or two at a time until it starts
..... you'll need someone to watch that exhaust. If i
t still won't start, then it's time to pull some plugs to see if they're wet.
If you suspect vapor lock .... the only cure is positive pressure on the system.
I'm partial to the 'serial flow system' .... where the boost pump feeds the
engine pump which feeds the controller. Others like the 'parallel flow system'
and that's OK too ...... but being able to pressurize the whole system is, to
me, the key. If you can mount your boost pump as low as possible in the cockpit
..... which shouldn't get as hot as the engne compartment ..... and keep it
cool, positive head pressure is always available ..... unless you run the tank
dry!!! Bottom line, the sequence you use in starting can be very important
and it's just a learning (leaning???? ;-) ) curve 'till you find what the engine
really likes. Good luck!!! Linn do not archive
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Facet Pump Failure |
--> RV-List message posted by: "Ed Bundy" <ebundy@speedyquick.net>
I really don't think I'd label the Facet pump as touchy. That thing is in
thousands of airplanes and the only time anyone is likely to post is when
they have a problem with it. I would guess that most everyone else that
hasn't posted is probably doing fine. I have 750+ hours on mine with no
trouble whatsoever. FWIW, it's cheap, simple, and it works.
Ed Bundy
I guess this thread concerns the little square Facet pump that Van pushes.
I sounds like it's a touchy little critter that I'd not want in my airplane.
I have one of the cylindrical Facets, like those found in the ACS catalog.
--
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Facet Pump Failure |
--> RV-List message posted by: "RV6 Flyer" <rv6_flyer@hotmail.com>
My little square Facet Pump is the one recommended by Van and is mounted in
the cockpit where Van recommends it. It has worked PERFECT since day one 9
years ago and 1,953 flying hours. Paul Rosales has almost 2,500 hours on
his and he has worked perfect also.
Gary A. Sobek
"My Sanity" RV-6 N157GS O-320 Hartzell,
1,953 + Flying Hours So. CA, USA
----Original Message Follows----
From: "Jim Sears" <jmsears@adelphia.net>
Subject: Re: RV-List: Facet Pump Failure
--> RV-List message posted by: "Jim Sears" <jmsears@adelphia.net>
I guess this thread concerns the little square Facet pump that Van pushes. I
sounds like it's a touchy little critter that I'd not want in my airplane. I
have one of the cylindrical Facets, like those found in the ACS catalog.
It's worked quite well in about 400 hours of flying. The one I had in my
Grumman-American Cheetah had never been replaced. The Cheetah had about
fifteen hundred hours on it, when I sold it. This unit has a screen inside
to catch dirt, a magnet on the bottom to catch metal, and a removable bottom
that allows one to inspect it. It may be a good alternative for the ones
who are having problems with the little square pump. You'd have to do some
plumbing work to install it, though. Those not at the point of installing
the pump may look at these as an alternative. Get the anti-syphon version.
There is one that fits well with our lines; but, I don't think ACS has it.
One of the contributors told us about it, a long time ago. It's in the
archives. With the ACS version, one has to downsize to a smaller nipple
size at the pump. No big deal; but, the other pump would be better.
Oh, yeah. I have my fuel pump mounted on the engine side of the firewall. I
didn't like the idea of having one in the cockpit with me. At annual time,
it's easier to get to for inspection while I'm looking at the engine and
lines.
Jim Sears in KY
RV-6A N198JS (Scooter)
RV-7A #70317 (Very slowly working on the fuse)
EAA Tech Counselor
Message 8
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Facet Pump Failure |
--> RV-List message posted by: Sam Buchanan <sbuc@hiwaay.net>
Ed Bundy wrote:
> --> RV-List message posted by: "Ed Bundy" <ebundy@speedyquick.net>
>
> I really don't think I'd label the Facet pump as touchy. That thing is in
> thousands of airplanes and the only time anyone is likely to post is when
> they have a problem with it. I would guess that most everyone else that
> hasn't posted is probably doing fine. I have 750+ hours on mine with no
> trouble whatsoever. FWIW, it's cheap, simple, and it works.
And....the Facet pump is a backup pump. What are the odds of the
engine-driven fuel pump and the Facet failing at the same time?
Sam Buchanan (RV-6 Classic with 780 hrs on the original Facet pump)
Message 9
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Fort Collins, CO area flight |
--> RV-List message posted by: "Tim Bryan" <n616tb@btsapps.com>
Hi Listers,
I will be repositioning my airplane around the 12-15th of this month to
Texas. I have routed my flight from Central Oregon to Burley, Id then to
Fort Collins, then to Salina, KS and finally to Frankston, Tx. My wife will
be following each day and catching up to me so only about 2 to 2-1/2 hour
flights each day for me.
My question is about Fort Collins. My sister lives in Severance and I see
two airports there which are public use. 3V5 and FNL. It appears that 3V5
has two useable runways for me, but can anybody from this area give me any
info on which one would be better for an overnight stay? Also, I need to
avoid flying over densely populated areas.
Thanks for any input
Tim Bryan
N616TB
Do Not Archive
Message 10
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: I've sworn off purge valve installations |
When you shut the engine down, residual pressure (caused by the pump
stopping on the pressure stroke and heat) can cause fuel to flow into
the cylinders after the engine stops, which contributes to the hot start
problem. When you use the purge valve to shut down, all the fuel is
diverted from the flow divider and goes back to the tank so there is NO
residual fuel going into the cylinders, Just using the purge valve to
stop the engine helps it start more easily.
I did not have a purge valve for the first 50 hours or so and I
installed it because of the shut down problem with the AFP system and I
could not believe how much easier it started when it was hot.
The purge valve was some of the best money I've spent on my airplane.
Dave B. -6 So Cal
EAA Technical Counselor
ronschreck@windstream.net wrote:
>--> RV-List message posted by: <ronschreck@windstream.net>
>
>I have been flying the AFP controller with purge valve for almost 140 ho
urs now and have come to the conclusion that the purge valve is not requi
red on hot starts. I turn the engine over with the mixture full lean unt
il it fires and slowly move to rich as it smoothes out. I do use the pur
ge valve for shutdown as the mixture does not fully shut off fuel deliver
y to the engine. I have run hose from the purge valve, through the baffl
es to a bulkhead fitting on the firewall. No hard fuel lines firewall fo
rward.
>
>Ron Schreck
>RV-8, "Miss Izzy"
>Gold Hill Airpark, NC
>
>av8er2fly@peoplepc.com wrote: > What would your normal start be with out
the purge valve? I do not > have a purge valve but was considering putti
ng one on because of real > hard hot starts. Any Ideas would be appreciat
ed. Mark Rose RV8A > 137MR IO360 85 fun Hrs. > Well, it all depends on wh
at's causing the hard starts when hot. This will take some sleuthing on y
our part. The problem may be that it takes some extra pump time to fully
pressurize the system and get fuel through the injectors. The problem may
not be vapor in the lines. When you have a hot start problem have someon
e look at the exhaust. If you see vapor (think the wavy view of the air d
own a hot road) and it doesn't start than it's too rich and when it does
start then you'll see black smoke out the exhaust. If you don't see anyth
ing, keep hitting the boost pump ..... keeping track of how long the tota
l pump run is ..... a second or two at a time until it starts ..... you'l
l need someone to watch that exhaust. If i
> t still won't start, then it's time to pull some plugs to see if they'r
e wet. If you suspect vapor lock .... the only cure is positive pressure
on the system. I'm partial to the 'serial flow system' .... where the boo
st pump feeds the engine pump which feeds the controller. Others like the
'parallel flow system' and that's OK too ...... but being able to pressu
rize the whole system is, to me, the key. If you can mount your boost pum
p as low as possible in the cockpit ..... which shouldn't get as hot as t
he engne compartment ..... and keep it cool, positive head pressure is al
ways available ..... unless you run the tank dry!!! Bottom line, the sequ
ence you use in starting can be very important and it's just a learning (
leaning???? ;-) ) curve 'till you find what the engine really likes. Good
luck!!! Linn do not archive
>
>
>
>
Message 11
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: I've sworn off purge valve installations |
--> RV-List message posted by: "Jeff Dowling" <shempdowling2@earthlink.net>
I just flood my io360 for about 3 seconds to push nice cool fuel through the
lines, then use standard flooding practices to start it. Full throttle,
full lean, crank till it begins to catch and reverse the throttle and
mixture levers. My rv runs HOT and this procedure has worked every time.
Shemp/Jeff Dowling
RV-6A, N915JD
300 hours
Chicago/Louisville
----- Original Message -----
From: <ronschreck@windstream.net>
Sent: Tuesday, October 03, 2006 7:33 AM
Subject: RV-List: Re: I've sworn off purge valve installations
> --> RV-List message posted by: <ronschreck@windstream.net>
>
> I have been flying the AFP controller with purge valve for almost 140
> hours now and have come to the conclusion that the purge valve is not
> required on hot starts. I turn the engine over with the mixture full lean
> until it fires and slowly move to rich as it smoothes out. I do use the
> purge valve for shutdown as the mixture does not fully shut off fuel
> delivery to the engine. I have run hose from the purge valve, through the
> baffles to a bulkhead fitting on the firewall. No hard fuel lines
> firewall forward.
>
> Ron Schreck
> RV-8, "Miss Izzy"
> Gold Hill Airpark, NC
>
> av8er2fly@peoplepc.com wrote: > What would your normal start be with out
> the purge valve? I do not > have a purge valve but was considering putting
> one on because of real > hard hot starts. Any Ideas would be appreciated.
> Mark Rose RV8A > 137MR IO360 85 fun Hrs. > Well, it all depends on what's
> causing the hard starts when hot. This will take some sleuthing on your
> part. The problem may be that it takes some extra pump time to fully
> pressurize the system and get fuel through the injectors. The problem may
> not be vapor in the lines. When you have a hot start problem have someone
> look at the exhaust. If you see vapor (think the wavy view of the air down
> a hot road) and it doesn't start than it's too rich and when it does start
> then you'll see black smoke out the exhaust. If you don't see anything,
> keep hitting the boost pump ..... keeping track of how long the total pump
> run is ..... a second or two at a time until it starts ..... you'll need
> someone to watch that exhaust. If i
> t still won't start, then it's time to pull some plugs to see if they're
> wet. If you suspect vapor lock .... the only cure is positive pressure on
> the system. I'm partial to the 'serial flow system' .... where the boost
> pump feeds the engine pump which feeds the controller. Others like the
> 'parallel flow system' and that's OK too ...... but being able to
> pressurize the whole system is, to me, the key. If you can mount your
> boost pump as low as possible in the cockpit ..... which shouldn't get as
> hot as the engne compartment ..... and keep it cool, positive head
> pressure is always available ..... unless you run the tank dry!!! Bottom
> line, the sequence you use in starting can be very important and it's just
> a learning (leaning???? ;-) ) curve 'till you find what the engine really
> likes. Good luck!!! Linn do not archive
>
>
>
Message 12
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | N616TB (RV-6) Flies |
--> RV-List message posted by: "Charles Rowbotham" <crowbotham@hotmail.com>
Hi Tim,
CONGRATULATIONS and WELL DONE !!
Chuck & Dave Rowbotham
RV-8A
>From: "Tim Bryan" <n616tb@btsapps.com>
>To: <rv-list@matronics.com>
>Subject: RV-List: N616TB (RV-6) Flies
>Date: Sun, 1 Oct 2006 13:55:33 -0700
>
>
>Hello Listers,
>
>
>My RV-6 purchased in 1991 flew its first flight today. Yeah, the grin was
>big.
Tim Bryan
>Bend, Oregon
Message 13
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | RE: Facet Pump Failure |
Regarding the comment that Facet pumps require a filter between the fuel tanks
and the pump to prevent debris from jamming the pump, I have Van's standard carbureted
fuel system setup in which the only "filter" I have between the pump
and the tanks is Van's fuel pickups with screens on the ends. Are some people
using an additional filter in the fuel system? My pump has performed well for
50+ hours (not continuous operation) even though I occasionally see a small
amount of fine debris in my tanks when I test for water.
Joel Haynes
RV-7A
N557XW
51 hours
Bozeman
________________________________________________________________________
Check out the new AOL. Most comprehensive set of free safety and security tools,
free access to millions of high-quality videos from across the web, free AOL
Mail and more.
Message 14
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Fort Collins, CO area flight |
--> RV-List message posted by: Ron Lee <ronlee@pcisys.net>
OK, you must be the guy who has not flown off the hours yet. Look into
Greeley as well.
It is probably as close to Severance as the others and has two nice runways.
http://www.airnav.com/airport/KGXY
Ron Lee
Message 15
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: I've sworn off purge valve installations |
--> RV-List message posted by: "Stewart, Michael (ISS Atlanta)" <mstewart@iss.net>
Ditto Jeffs procedure. But I do that on my second try.
First try is lean, crack throttle, pump on, crank, count 5 blades, shove
mixture rich and it usually catches. If I wait till it catches before I
shove the mixture fwd, im usually too late. If that failes, try 2 is
method below.
BTW, the discussion on the usefulness of the purge valve should in no
way be seen as a dig against AFP. There system is solid and the company
is a pleasure to work with. Don took my call last week on a Friday at
6pmest to help me troubleshoot. They are a class act and I have not once
heard a bad word about them and their systems are everywhere.
I will reiterate that the purge valve setup adds complexity and failure
modes which are not off set by the benefits IMHO. Whether or not you
conclude builder error or not on a line here or there, there are failure
modes to be considered against the benefit of the valve and its
associated plumbing. My conclusion is that in MY EXPERIENCE, it is not
needed and therefore should be excluded from installation in RV's.
Mike
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of Jeff Dowling
Sent: Tuesday, October 03, 2006 12:08 PM
Subject: Re: RV-List: Re: I've sworn off purge valve installations
--> RV-List message posted by: "Jeff Dowling"
<shempdowling2@earthlink.net>
I just flood my io360 for about 3 seconds to push nice cool fuel through
the
lines, then use standard flooding practices to start it. Full throttle,
full lean, crank till it begins to catch and reverse the throttle and
mixture levers. My rv runs HOT and this procedure has worked every
time.
Shemp/Jeff Dowling
RV-6A, N915JD
300 hours
Chicago/Louisville
----- Original Message -----
From: <ronschreck@windstream.net>
Sent: Tuesday, October 03, 2006 7:33 AM
Subject: RV-List: Re: I've sworn off purge valve installations
> --> RV-List message posted by: <ronschreck@windstream.net>
>
> I have been flying the AFP controller with purge valve for almost 140
> hours now and have come to the conclusion that the purge valve is not
> required on hot starts. I turn the engine over with the mixture full
lean
> until it fires and slowly move to rich as it smoothes out. I do use
the
> purge valve for shutdown as the mixture does not fully shut off fuel
> delivery to the engine. I have run hose from the purge valve, through
the
> baffles to a bulkhead fitting on the firewall. No hard fuel lines
> firewall forward.
>
> Ron Schreck
> RV-8, "Miss Izzy"
> Gold Hill Airpark, NC
>
> av8er2fly@peoplepc.com wrote: > What would your normal start be with
out
> the purge valve? I do not > have a purge valve but was considering
putting
> one on because of real > hard hot starts. Any Ideas would be
appreciated.
> Mark Rose RV8A > 137MR IO360 85 fun Hrs. > Well, it all depends on
what's
> causing the hard starts when hot. This will take some sleuthing on
your
> part. The problem may be that it takes some extra pump time to fully
> pressurize the system and get fuel through the injectors. The problem
may
> not be vapor in the lines. When you have a hot start problem have
someone
> look at the exhaust. If you see vapor (think the wavy view of the air
down
> a hot road) and it doesn't start than it's too rich and when it does
start
> then you'll see black smoke out the exhaust. If you don't see
anything,
> keep hitting the boost pump ..... keeping track of how long the total
pump
> run is ..... a second or two at a time until it starts ..... you'll
need
> someone to watch that exhaust. If i
> t still won't start, then it's time to pull some plugs to see if
they're
> wet. If you suspect vapor lock .... the only cure is positive pressure
on
> the system. I'm partial to the 'serial flow system' .... where the
boost
> pump feeds the engine pump which feeds the controller. Others like the
> 'parallel flow system' and that's OK too ...... but being able to
> pressurize the whole system is, to me, the key. If you can mount your
> boost pump as low as possible in the cockpit ..... which shouldn't get
as
> hot as the engne compartment ..... and keep it cool, positive head
> pressure is always available ..... unless you run the tank dry!!!
Bottom
> line, the sequence you use in starting can be very important and it's
just
> a learning (leaning???? ;-) ) curve 'till you find what the engine
really
> likes. Good luck!!! Linn do not archive
>
>
>
Message 16
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | FW: RV-6/7/9 Seats For Sale |
Dear List,
Attached is a link to a pair of seats that came out of my
6A. They have exactly 250 hours on them since new. They are light
weight, comfortable and in very near new condition. The stick boot is
part of the seat.
I assume that they will fit 6's, 7's and 9's but I am not an
expert so if you are not 100% sure please ask someone knowledgeable in
the RV butt pad arts.
I have priced these are $350 + actual shipping charges (Zip
Code 93405)*. They may be worth more but my goal is to get these to a
nice RV home. If for some reason you are not satisfied I will refund
100% of the purchase price less shipping.
Robin
RV-4 Sold
RV-6A 300 hours
RV-10 Delivered
RV-8A Dreaming
http://www.painttheweb.com/rv_seats/
* I live in central California (SBP) but also have a home in LA and can
deliver them to the Burbank (BUR) area free of charge
Message 17
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | RE: Fort Collins, CO area flight |
Tim,
I used to live in Fort Collins and have flown out of both airports. 3V5 is downtown
Fort Collins and is difficult to avoid densly populated areas. FNL has a
nicer runway (longer and wider) and is located between Fort Collins and Loveland,
serving both towns. It's less densly populated around FNL. Driving distance
from Ft. Collins to either airport is similar, depending on where you are
in Ft. Collins. If it were me, I would choose FNL.
Joel Haynes,
Bozeman
N557XW 7A 51 hours
________________________________________________________________________
Check out the new AOL. Most comprehensive set of free safety and security tools,
free access to millions of high-quality videos from across the web, free AOL
Mail and more.
Message 18
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: I've sworn off purge valve installations |
--> RV-List message posted by: "don wentz" <dasduck@comcast.net>
I do similar to Mike, but usually 'prime' 2 or 3 seconds with pump on and
thr/mix in. Then pump off, throttle at appx 1200rpm (cracked), mixture lean
and push-in slowly after a few blades.
Leaving the oil door open while fueling and paying the bill can do a lot to
reduce heat build-up under the cowl as well.
Don RV-6, 12 years with AFP, no purge.
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of Stewart, Michael
(ISS Atlanta)
Sent: Tuesday, October 03, 2006 10:33 AM
Subject: RE: RV-List: Re: I've sworn off purge valve installations
--> RV-List message posted by: "Stewart, Michael (ISS Atlanta)"
<mstewart@iss.net>
Ditto Jeffs procedure. But I do that on my second try.
First try is lean, crack throttle, pump on, crank, count 5 blades, shove
mixture rich and it usually catches. If I wait till it catches before I
shove the mixture fwd, im usually too late. If that failes, try 2 is
method below.
BTW, the discussion on the usefulness of the purge valve should in no
way be seen as a dig against AFP. There system is solid and the company
is a pleasure to work with. Don took my call last week on a Friday at
6pmest to help me troubleshoot. They are a class act and I have not once
heard a bad word about them and their systems are everywhere.
I will reiterate that the purge valve setup adds complexity and failure
modes which are not off set by the benefits IMHO. Whether or not you
conclude builder error or not on a line here or there, there are failure
modes to be considered against the benefit of the valve and its
associated plumbing. My conclusion is that in MY EXPERIENCE, it is not
needed and therefore should be excluded from installation in RV's.
Mike
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of Jeff Dowling
Sent: Tuesday, October 03, 2006 12:08 PM
Subject: Re: RV-List: Re: I've sworn off purge valve installations
--> RV-List message posted by: "Jeff Dowling"
<shempdowling2@earthlink.net>
I just flood my io360 for about 3 seconds to push nice cool fuel through
the
lines, then use standard flooding practices to start it. Full throttle,
full lean, crank till it begins to catch and reverse the throttle and
mixture levers. My rv runs HOT and this procedure has worked every
time.
Shemp/Jeff Dowling
RV-6A, N915JD
300 hours
Chicago/Louisville
----- Original Message -----
From: <ronschreck@windstream.net>
Sent: Tuesday, October 03, 2006 7:33 AM
Subject: RV-List: Re: I've sworn off purge valve installations
> --> RV-List message posted by: <ronschreck@windstream.net>
>
> I have been flying the AFP controller with purge valve for almost 140
> hours now and have come to the conclusion that the purge valve is not
> required on hot starts. I turn the engine over with the mixture full
lean
> until it fires and slowly move to rich as it smoothes out. I do use
the
> purge valve for shutdown as the mixture does not fully shut off fuel
> delivery to the engine. I have run hose from the purge valve, through
the
> baffles to a bulkhead fitting on the firewall. No hard fuel lines
> firewall forward.
>
> Ron Schreck
> RV-8, "Miss Izzy"
> Gold Hill Airpark, NC
>
> av8er2fly@peoplepc.com wrote: > What would your normal start be with
out
> the purge valve? I do not > have a purge valve but was considering
putting
> one on because of real > hard hot starts. Any Ideas would be
appreciated.
> Mark Rose RV8A > 137MR IO360 85 fun Hrs. > Well, it all depends on
what's
> causing the hard starts when hot. This will take some sleuthing on
your
> part. The problem may be that it takes some extra pump time to fully
> pressurize the system and get fuel through the injectors. The problem
may
> not be vapor in the lines. When you have a hot start problem have
someone
> look at the exhaust. If you see vapor (think the wavy view of the air
down
> a hot road) and it doesn't start than it's too rich and when it does
start
> then you'll see black smoke out the exhaust. If you don't see
anything,
> keep hitting the boost pump ..... keeping track of how long the total
pump
> run is ..... a second or two at a time until it starts ..... you'll
need
> someone to watch that exhaust. If i
> t still won't start, then it's time to pull some plugs to see if
they're
> wet. If you suspect vapor lock .... the only cure is positive pressure
on
> the system. I'm partial to the 'serial flow system' .... where the
boost
> pump feeds the engine pump which feeds the controller. Others like the
> 'parallel flow system' and that's OK too ...... but being able to
> pressurize the whole system is, to me, the key. If you can mount your
> boost pump as low as possible in the cockpit ..... which shouldn't get
as
> hot as the engne compartment ..... and keep it cool, positive head
> pressure is always available ..... unless you run the tank dry!!!
Bottom
> line, the sequence you use in starting can be very important and it's
just
> a learning (leaning???? ;-) ) curve 'till you find what the engine
really
> likes. Good luck!!! Linn do not archive
>
>
>
--
--
Message 19
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | RE: Fort Collins, CO area flight |
Hi Joel,
It appears there is a consensus here. Someone else mentioned that 3V5 will
be closed shortly. Too bad to loose another airport. I suspect I will
planning to use FNL.
Thanks
Tim
Do Not Archive
_____
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of joelrhaynes@aol.com
Sent: Tuesday, October 03, 2006 1:02 PM
Subject: RV-List: RE: Fort Collins, CO area flight
Tim,
I used to live in Fort Collins and have flown out of both airports. 3V5 is
downtown Fort Collins and is difficult to avoid densly populated areas. FNL
has a nicer runway (longer and wider) and is located between Fort Collins
and Loveland, serving both towns. It's less densly populated around FNL.
Driving distance from Ft. Collins to either airport is similar, depending on
where you are in Ft. Collins. If it were me, I would choose FNL.
Joel Haynes,
Bozeman
N557XW 7A 51 hours
_____
<http://pr.atwola.com/promoclk/1615326657x4311227241x4298082137/aol?redir=ht
tp%3A%2F%2Fwww%2Eaol%2Ecom%2Fnewaol> Check out the new AOL. Most
comprehensive set of free safety and security tools, free access to millions
of high-quality videos from across the web, free AOL Mail and more.
Message 20
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Fort Collins, CO area flight |
I like landing at Greeley as well. It has good runways, self service fuel and a
cafe.
The Pocatello ID airport (KPIH) is outside of town and clear of population, as
well as Idaho Falls runway 2-20 (KIDA). I use (1U7) Bear Lake as a way point
on the way form ID to CO.
I recommend your wife drive US 30 from ID to Rock Springs as it is mostly good
road and much shorter than the alternatives.
Ron Lee <ronlee@pcisys.net> wrote:
--> RV-List message posted by: Ron Lee
OK, you must be the guy who has not flown off the hours yet. Look into
Greeley as well.
It is probably as close to Severance as the others and has two nice runways.
http://www.airnav.com/airport/KGXY
Ron Lee
Do Not Archive
Sherman Butler
RV-7a Wings
Idaho Falls
---------------------------------
Message 21
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | FW: RV-6/7/9 Seats For Sale *** SOLD *** |
Thank you RV List. The seats have sold (in 50 minutes).
Robin
Do not archive
________________________________
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of Robin Marks
Sent: Tuesday, October 03, 2006 11:41 AM
Subject: RV-List: FW: RV-6/7/9 Seats For Sale
Dear List,
Attached is a link to a pair of seats that came out of my
6A. They have exactly 250 hours on them since new. They are light
weight, comfortable and in very near new condition. The stick boot is
part of the seat.
I assume that they will fit 6's, 7's and 9's but I am not an
expert so if you are not 100% sure please ask someone knowledgeable in
the RV butt pad arts.
I have priced these are $350 + actual shipping charges (Zip
Code 93405)*. They may be worth more but my goal is to get these to a
nice RV home. If for some reason you are not satisfied I will refund
100% of the purchase price less shipping.
Robin
RV-4 Sold
RV-6A 300 hours
RV-10 Delivered
RV-8A Dreaming
http://www.painttheweb.com/rv_seats/
* I live in central California (SBP) but also have a home in LA and can
deliver them to the Burbank (BUR) area free of charge
Message 22
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | RV 7 Wing alignment |
I have assembled both skins of my wing with clecoes (all of them, I'm glad mike
has them on sale). 1 in 3 in spars and 1 in 2 along the ribs. I have measured
the wing and it may have 1/32 twist with no sag. I have noticed that most of
the builders need a lower jack to remove the sag, but as my wing sits it is
straight.
Will it begin to sag once it is match drilled or being assemble for riveting
with only one skin? Is this normal?
Do not archive
Sherman Butler
RV-7a Wings
Idaho Falls
---------------------------------
Message 23
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | [ John W. Cox ] : New Email List Photo Share Available! |
--> RV-List message posted by: Email List Photo Shares <pictures@matronics.com>
A new Email List Photo Share is available:
Poster: John W. Cox <johnwcox@pacificnw.com>
Lists: RV-List,RV10-List
Subject: Hartzell Composite Prop
http://www.matronics.com/photoshare/johnwcox@pacificnw.com.10.03.2006/index.html
----------------------------------------------------------
o Main Photo Share Index
http://www.matronics.com/photoshare
o Submitting a Photo Share
If you wish to submit a Photo Share of your own, please include the
following information along with your email message and files:
1) Email List or Lists that they are related to:
2) Your Full Name:
3) Your Email Address:
4) One line Subject description:
5) Multi-line, multi-paragraph description of topic:
6) One-line Description of each photo or file:
Email the information above and your files and photos to:
pictures@matronics.com
----------------------------------------------------------
Message 24
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | [ Alf Olav Frog / Norway ] : New Email List Photo Share Available! |
--> RV-List message posted by: Email List Photo Shares <pictures@matronics.com>
A new Email List Photo Share is available:
Poster: Alf Olav Frog / Norway <ao.frog@c2i.net>
Lists: RV-List,RV3-List,RV4-List,RV6-List,RV7-List,RV8-List,RV9-List,RV10-List
Subject: Trimtab problems are history!
http://www.matronics.com/photoshare/ao.frog@c2i.net.10.03.2006/index.html
----------------------------------------------------------
o Main Photo Share Index
http://www.matronics.com/photoshare
o Submitting a Photo Share
If you wish to submit a Photo Share of your own, please include the
following information along with your email message and files:
1) Email List or Lists that they are related to:
2) Your Full Name:
3) Your Email Address:
4) One line Subject description:
5) Multi-line, multi-paragraph description of topic:
6) One-line Description of each photo or file:
Email the information above and your files and photos to:
pictures@matronics.com
----------------------------------------------------------
Message 25
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | RV 7 Wing alignment |
Sherman:
It can sag. Whether it will, who knows? But when i did mine, I made sure
ALL the skins were clecoed in place before I match drilled.
Now, it 's possible that even once it's all riveted, it can sag. It
happens fairly often when people are putting their fuel tanks on that they
just don't get them to go down all the way. But one crank of the jack and
they pop into place. Why? Cuz even with everything riveted, there's a slight
sag in the middle.
1/32" twist? I don't think that's going to hurt you.
Bob Collins
St. Paul, Minn.
_____
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of Sherman Butler
Sent: Tuesday, October 03, 2006 8:50 PM
Subject: RV-List: RV 7 Wing alignment
I have assembled both skins of my wing with clecoes (all of them, I'm glad
mike has them on sale). 1 in 3 in spars and 1 in 2 along the ribs. I have
measured the wing and it may have 1/32 twist with no sag. I have noticed
that most of the builders need a lower jack to remove the sag, but as my
wing sits it is straight.
Will it begin to sag once it is match drilled or being assemble for riveting
with only one skin? Is this normal?
Do not archive
Sherman Butler
RV-7a Wings
Idaho Falls
Message 26
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | [ Clive Whittfield ] : New Email List Photo Share Available! |
--> RV-List message posted by: Email List Photo Shares <pictures@matronics.com>
A new Email List Photo Share is available:
Poster: Clive Whittfield <cazw@ihug.co.nz>
Lists: RV-List,RV6-List
Subject: Windscreen frame misalignment
http://www.matronics.com/photoshare/cazw@ihug.co.nz.10.03.2006/index.html
----------------------------------------------------------
o Main Photo Share Index
http://www.matronics.com/photoshare
o Submitting a Photo Share
If you wish to submit a Photo Share of your own, please include the
following information along with your email message and files:
1) Email List or Lists that they are related to:
2) Your Full Name:
3) Your Email Address:
4) One line Subject description:
5) Multi-line, multi-paragraph description of topic:
6) One-line Description of each photo or file:
Email the information above and your files and photos to:
pictures@matronics.com
----------------------------------------------------------
Message 27
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Facet Pump Failure |
So not having looked inside one, if the piston jams on junk, will it still
flow fuel if the mechanical pump is working ? In other words, does it fail
in a safe mode ?
Thanks Bill S
_____
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of FLYaDIVE@aol.com
Sent: Monday, October 02, 2006 6:52 PM
Subject: Re: RV-List: Facet Pump Failure
In a message dated 10/2/2006 9:22:22 AM Eastern Standard Time,
pete.howell@gecko-group.com writes:
I had my pump fail after 45 seconds of fuel flow test (just
installed) - does anyone have an address or phone # for the mfg. I'd
like to call to see if they have seen this before or want to analyze
the unit.
Pete
===========================
Pete:
I have repaired about 3 pumps that have failed. In all three cases it was
debris that jammed the piston.
One side of the pump unscrews and the unit comes apart. DON'T LOOSE THE
PIECES when taking it apart.
Barry
"Chop'd Liver"
Message 28
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: RV 7 Wing alignment |
Hi Sherman,
If you push the wing straight (resolve the 1/32' twist) before you match
drill it while also supporting the sag prone area your wings should come
out very straight after the match drilling.
To straighten the twist, remove enough of the clecoes over the whole
area to allow the wing to be straightened then match drill holes
checking for straightness as you go. Clecoe the match drilled holes and
all will be well and good.
I have seen structure built with a small twist that unfortunately turned
out to be up on one wing and down on the other. the result was the need
for a trim tab to compensate for the twist. If discovered too late
during the build process a trim tab is often easier than drilling out
allmost if not all the rivets, correcting the twist, redrilling the
holes and then riveting the structure over again.
Happy building,
Jim in Kelowna
----- Original Message -----
From: Bob Collins
To: rv-list@matronics.com
Sent: Tuesday, October 03, 2006 7:37 PM
Subject: RE: RV-List: RV 7 Wing alignment
Sherman:
It can sag. Whether it will, who knows? But when i did mine, I
made sure ALL the skins were clecoed in place before I match drilled.
Now, it 's possible that even once it's all riveted, it can sag.
It happens fairly often when people are putting their fuel tanks on that
they just don't get them to go down all the way. But one crank of the
jack and they pop into place. Why? Cuz even with everything riveted,
there's a slight sag in the middle.
1/32" twist? I don't think that's going to hurt you.
Bob Collins
St. Paul, Minn.
-------------------------------------------------------------------------
-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of Sherman Butler
Sent: Tuesday, October 03, 2006 8:50 PM
To: rv-list@matronics.com
Subject: RV-List: RV 7 Wing alignment
I have assembled both skins of my wing with clecoes (all of them, I'm
glad mike has them on sale). 1 in 3 in spars and 1 in 2 along the ribs.
I have measured the wing and it may have 1/32 twist with no sag. I have
noticed that most of the builders need a lower jack to remove the sag,
but as my wing sits it is straight.
Will it begin to sag once it is match drilled or being assemble for
riveting with only one skin? Is this normal?
Do not archive
Sherman Butler
RV-7a Wings
Idaho Falls
href="http://www.matronics.com/Navigator?RV-List">http://www.matronics.
com/Navigator?RV-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://wiki.matronics.com">http://wiki.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
Message 29
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Facet Pump Failure |
In a message dated 10/3/2006 6:49:24 A.M. Pacific Daylight Time,
rv6_flyer@hotmail.com writes:
My little square Facet Pump is the one recommended by Van and is mounted in
the cockpit where Van recommends it. It has worked PERFECT since day one 9
years ago and 1,953 flying hours. Paul Rosales has almost 2,500 hours on
his and he has worked perfect also.
=================================
811 hrs same pump (carbureted in my case) mounted all standard per Van's
instructions yadda yadda also perfectamundo. Let's not re-engineer this area,
folks.
GV (RV-6A N1GV O-360-A1A, C/S, Flying 811hrs, Silicon Valley, CA)
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|