Today's Message Index:
----------------------
1. 01:25 AM - Sniffel Valve (Stan Jones)
2. 05:02 AM - Bigger tires for 6A on grass? (Ralph E. Capen)
3. 06:20 AM - Re: Bigger tires for 6A on grass? (Paul Trotter)
4. 06:34 AM - Re: Sniffel Valve 0.11 HTML_TAG_EXIST_TBODY BODY: HTML has "tbody" tag 0.00 HTML_NONELEMENT_00_10 BODY: 0% to 10% of HTML elements are non-standard (Pat Hatch)
5. 07:03 AM - Re: RV-4 air vent (Doug Weiler)
6. 07:10 AM - Re: Bigger tires for 6A on grass? (Mickey Coggins)
7. 07:18 AM - Re: Sniffel Valve 0.11 HTML_TAG_EXIST_TBODY BODY: (gert)
8. 07:47 AM - Re: RV-4 air vent (Derrick Aubuchon)
9. 08:00 AM - I fried my Oil temp, 3 in 1 gauge (Jeff Dowling)
10. 08:02 AM - Fuel vapors in cockpit (Jeff Dowling)
11. 08:22 AM - Re: Bigger tires for 6A on grass? (Paul Trotter)
12. 08:45 AM - Re: Fuel vapors in cockpit (Tim Bryan)
13. 08:59 AM - Re: Fuel vapors in cockpit (Phil Sisson, Litchfield Aerobatic Club)
14. 09:08 AM - Re: Sniffel Valve 0.11 HTML_TAG_EXIST_TBODY BODY: HTML has "tbody" tag 0.00 HTML_NONELEMENT_00_10 BODY: 0% to 10% of HTML elements are non-standard (Dan Checkoway)
15. 09:17 AM - Re: Fuel vapors in cockpit (Jeff Point)
16. 09:27 AM - Re: RV-4 air vent (Randy Lervold)
17. 09:27 AM - Re: Fuel vapors in cockpit (Randy Lervold)
18. 09:34 AM - Re: Fuel vapors in cockpit (HCRV6@aol.com)
19. 09:43 AM - Re: Fuel vapors in cockpit (Jeff Dowling)
20. 09:46 AM - Re: Fuel vapors in cockpit (Jeff Dowling)
21. 09:50 AM - Re: Fuel vapors in cockpit (Jeff Dowling)
22. 09:54 AM - Re: Fuel vapors in cockpit (Jeff Dowling)
23. 10:21 AM - RV-4 Vent. (Moore, Warren)
24. 10:27 AM - Re: Sniffel Valve 0.11 HTML_TAG_EXIST_TBODY BODY: (gert)
25. 10:31 AM - GretzAero Electric Trim Kit (Brad Oliver)
26. 11:30 AM - Re: Fuel vapors in cockpit (Brian Denk)
27. 11:40 AM - RV-4 NACA vent installation pic (Ron Lee)
28. 11:52 AM - Items for Sale (rveighta)
29. 11:55 AM - Re: Fuel vapors in cockpit (Dean)
30. 12:31 PM - Re: Fuel vapors in cockpit (linn walters)
31. 12:39 PM - RV-4 Air vents (SCOTT SPENCER)
32. 12:43 PM - Re: Bigger tires for 6A on grass? (Mickey Coggins)
33. 03:02 PM - Class G (Wheeler North)
34. 04:57 PM - Re: Fuel vapors in cockpit (Stan Jones)
35. 05:50 PM - RV-4 air vent (Larry E. James)
36. 07:17 PM - Re: RV-4 air vent (HalBenjamin@aol.com)
37. 08:26 PM - Re: Sedona (Darwin N. Barrie)
38. 08:55 PM - Re: Sedona (Ron Lee)
39. 09:46 PM - Oshkosh Yodeler- not RV related (Jeff Point)
40. 09:51 PM - Cowl Camlocs, Brakeline brackets (DEAN PSIROPOULOS)
Message 1
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0.11 HTML_TAG_EXIST_TBODY BODY: HTML has "tbody" tag
0.00 HTML_NONELEMENT_00_10 BODY: 0% to 10% of HTML elements are non-standard
--> RV-List message posted by: "Stan Jones" <stan.jones@xtra.co.nz>
I was going through the drawings for Firewall Forward today, and came across
the term
Sniffel Valve. What is this, and what does it do. Do I need one on my
Superior IO 360
with AFP fuel injection
Stan Jones.
Message 2
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| Subject: | Bigger tires for 6A on grass? |
--> RV-List message posted by: "Ralph E. Capen" <recapen@earthlink.net>
Fellow listers,
I am trying to determine if there are benefits to going with larger tires/rims
for grass strip use.
I am in the process of relocating to eastern MD / southern DE and there are a bunch
of grass strips out here - with better potential for acquiring hangaring
facilities...
Your thoughts please.
Ralph Capen
Message 3
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| Subject: | Re: Bigger tires for 6A on grass? |
--> RV-List message posted by: Paul Trotter <ptrotter@acm.org>
Ralph,
I'm planning on putting 6" wheels on my RV-8 for this same reason. I asked
Van about it at SnF and he said no problem except that the standard wheel
pants won't fit. HE suggested that the RV-10 wheel pants might be modified
to fit.
Paul Trotter
----- Original Message -----
From: "Ralph E. Capen" <recapen@earthlink.net>
Subject: RV-List: Bigger tires for 6A on grass?
> --> RV-List message posted by: "Ralph E. Capen" <recapen@earthlink.net>
>
> Fellow listers,
>
> I am trying to determine if there are benefits to going with larger
tires/rims for grass strip use.
> I am in the process of relocating to eastern MD / southern DE and there
are a bunch of grass strips out here - with better potential for acquiring
hangaring facilities...
>
> Your thoughts please.
>
> Ralph Capen
>
>
Message 4
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| Subject: | Sniffel Valve 0.11 HTML_TAG_EXIST_TBODY BODY: HTML |
has "tbody" tag 0.00 HTML_NONELEMENT_00_10 BODY: 0% to 10% of HTML
elements are non-standard
--> RV-List message posted by: "Pat Hatch" <pat_hatch@msn.com>
Stan,
The purpose of the sniffle valve in a fuel-injected engine is to drain
excess or by-pass fuel from the servo that dumps into the engine sump area.
It might not be necessary for your installation. I would check with the AFP
folks.
If your engine is running rough or surging at idle speed, I would guess that
a sniffle valve would alleviate the problem. If you do need it, be aware
that you might encounter interference problems with the exhaust system.
There are different types of sniffle valves available for this purpose.
Your engine provider can probably supply the correct one for you.
Pat Hatch
RV-7
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of Stan Jones
Subject: RV-List: Sniffel Valve 0.11 HTML_TAG_EXIST_TBODY BODY: HTML has
"tbody" tag 0.00 HTML_NONELEMENT_00_10 BODY: 0% to 10% of HTML elements are
non-standard
--> RV-List message posted by: "Stan Jones" <stan.jones@xtra.co.nz>
I was going through the drawings for Firewall Forward today, and came across
the term
Sniffel Valve. What is this, and what does it do. Do I need one on my
Superior IO 360
with AFP fuel injection
Stan Jones.
Message 5
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| Subject: | Re: RV-4 air vent |
--> RV-List message posted by: Doug Weiler <dcw@mnwing.org>
Yes Ivan, photos would be nice when you get a chance. Randy sent me some of
his installation which may be similar to yours.
Thanks
Doug
On 6/21/05 11:24 PM, "H.Ivan Haecker" <baremetl@gvtc.com> wrote:
> --> RV-List message posted by: "H.Ivan Haecker" <baremetl@gvtc.com>
>
> Doug,
> I get my air for the front seat from the front of the cowling as Randy
> described. I measure about 3 degrees higher than outside using this method.
> Much improved over the rear baffle pickup point. For the rear seat, I
> retrofitted an under the wing naca style similar to the rv-8. Very nice air
> flow and little extra noise. Pictures if needed.
>
> Ivan Haecker -4 1155 hrs. S. Cen. TX (where it's hot)
>
>
> ----- Original Message -----
> From: "Doug Weiler" <dcw@mnwing.org>
> To: "RV List" <rv-list@matronics.com>
> Subject: RV-List: RV-4 air vent
>
>
>> --> RV-List message posted by: Doug Weiler <dcw@mnwing.org>
>>
>> Greetings Listers:
>>
>> For the RV-4 folks (there must be a couple still around):
>>
>> I really need to increase the fresh air ventilation in my -4. Right now I
>> am taking fresh air off the back baffle and running it through Van's
> mixing
>> box into the cabin. Plenty of fresh air when in the "cold" mode, but
> since
>> the air flows through the top of the cowling first, it is about 10 degrees
>> above ambient. Not good on a hot day.
>>
>
>
>
>
>
>
Message 6
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| Subject: | Re: Bigger tires for 6A on grass? |
--> RV-List message posted by: Mickey Coggins <mick-matronics@rv8.ch>
Will the 6" axles work on the standard gear legs?
> I'm planning on putting 6" wheels on my RV-8 for this same reason. I asked
> Van about it at SnF and he said no problem except that the standard wheel
> pants won't fit. HE suggested that the RV-10 wheel pants might be modified
> to fit.
--
Mickey Coggins
http://www.rv8.ch/
#82007 Canopy
Message 7
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HTML has \"tbody\" tag 0.00 HTML_NONELEMENT_00_10 BODY": 0%to.10@of.HTML.elements.are.non-standard
| Subject: | Re: Sniffel Valve 0.11 HTML_TAG_EXIST_TBODY BODY: |
HTML has "tbody" tag 0.00 HTML_NONELEMENT_00_10 BODY: 0% to 10% of
HTML elements are non-standard
--> RV-List message posted by: gert <gert.v@sbcglobal.net>
Stan
Is my understanding that the sniffle valve allows fluids to drain out of
the low point in the induction system. be it water or puddled gas. it is
vacuum operated, in that it closes when there is a vacuum in the
induction system. I.e. it opens when the engine is off.
I bought mine from Aerosport, there are appearantly 2 kinds, one just
drains and drips in-situ and one has a nipple to reroute the drainage
(away from the exhaust) which is what I got.
Gert
Stan Jones wrote:
>--> RV-List message posted by: "Stan Jones" <stan.jones@xtra.co.nz>
>
>I was going through the drawings for Firewall Forward today, and came across
>the term
>Sniffel Valve. What is this, and what does it do. Do I need one on my
>Superior IO 360
>with AFP fuel injection
>Stan Jones.
>
>
>
>
--
is subject to a download and archival fee in the amount of $500
Message 8
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| Subject: | Re: RV-4 air vent |
--> RV-List message posted by: Derrick Aubuchon <n184da@volcano.net>
Ivan,
If you get a chance, I would also like to see those installation photos.
Thanks,,
Derrick L. Aubuchon
RV-4: N184DA
Jackson/Westover -Amador County (O70)
n184da@volcano.net
On Jun 22, 2005, at 6:51 AM, Doug Weiler wrote:
> --> RV-List message posted by: Doug Weiler <dcw@mnwing.org>
>
> Yes Ivan, photos would be nice when you get a chance. Randy sent
> me some of
> his installation which may be similar to yours.
>
> Thanks
>
> Doug
>
>
> On 6/21/05 11:24 PM, "H.Ivan Haecker" <baremetl@gvtc.com> wrote:
>
>
>> --> RV-List message posted by: "H.Ivan Haecker" <baremetl@gvtc.com>
>>
>> Doug,
>> I get my air for the front seat from the front of the cowling as
>> Randy
>> described. I measure about 3 degrees higher than outside using
>> this method.
>> Much improved over the rear baffle pickup point. For the rear seat, I
>> retrofitted an under the wing naca style similar to the rv-8. Very
>> nice air
>> flow and little extra noise. Pictures if needed.
>>
>> Ivan Haecker -4 1155 hrs. S. Cen. TX (where it's hot)
>>
>>
>> ----- Original Message -----
>> From: "Doug Weiler" <dcw@mnwing.org>
>> To: "RV List" <rv-list@matronics.com>
>> Subject: RV-List: RV-4 air vent
>>
>>
>>
>>> --> RV-List message posted by: Doug Weiler <dcw@mnwing.org>
>>>
>>> Greetings Listers:
>>>
>>> For the RV-4 folks (there must be a couple still around):
>>>
>>> I really need to increase the fresh air ventilation in my -4.
>>> Right now I
>>> am taking fresh air off the back baffle and running it through Van's
>>>
>> mixing
>>
>>> box into the cabin. Plenty of fresh air when in the "cold" mode,
>>> but
>>>
>> since
>>
>>> the air flows through the top of the cowling first, it is about
>>> 10 degrees
>>> above ambient. Not good on a hot day.
>>>
>>>
>>
>>
>>
>>
>>
>>
>>
>
>
Message 9
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| Subject: | I fried my Oil temp, 3 in 1 gauge |
--> RV-List message posted by: "Jeff Dowling" <shempdowling2@earthlink.net>
I was washing my engine yesterday and allowed water to get into the cannon plug
for my oil temp probe located just above the oil filter. The indicator didnt
budge. I removed the plug to find the female portion completely filled with
water. I drained the water and replaced the plug to find an indication but not
the correct one. It was reading about 25 degree Celsius low. I then flew for
about a half hour and it went completely dead again. I have a 3 in 1 gauge,
oil temp/press and fuel press. Anyone have an idea how thing works?
Shemp/Jeff Dowling
RV-6A, N915JD
200 hours
Chicago/Louisville
Message 10
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| Subject: | Fuel vapors in cockpit |
--> RV-List message posted by: "Jeff Dowling" <shempdowling2@earthlink.net>
I cant find a fuel leak. I generally only smell fuel when Im flying aggressively
or in the bumps. It happens with either tank selected. I checked all of the
connections and cant find any signs of the telltale blue fuel. It seems to
be the worst when Im in a steep climb. I cant tell if its a change in airflow
or a change in where the fuel is sitting. Hmmmmm.
Shemp/Jeff Dowling
RV-6A, N915JD
200 hours
Chicago/Louisville
Message 11
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| Subject: | Re: Bigger tires for 6A on grass? |
--> RV-List message posted by: Paul Trotter <ptrotter@acm.org>
Mickey,
Generally 6" wheels use a 1.5" axle whereas 5" wheels use a 1.25" axle. I'm
planning to use Grove wheels and they make a 6" wheel that uses a 1.25" axle
that will fit on my Grove gear legs.
Paul
----- Original Message -----
From: "Mickey Coggins" <mick-matronics@rv8.ch>
Subject: Re: RV-List: Bigger tires for 6A on grass?
> --> RV-List message posted by: Mickey Coggins <mick-matronics@rv8.ch>
>
> Will the 6" axles work on the standard gear legs?
>
> > I'm planning on putting 6" wheels on my RV-8 for this same reason. I
asked
> > Van about it at SnF and he said no problem except that the standard
wheel
> > pants won't fit. HE suggested that the RV-10 wheel pants might be
modified
> > to fit.
>
>
> --
> Mickey Coggins
> http://www.rv8.ch/
> #82007 Canopy
>
>
Message 12
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| Subject: | Re: Fuel vapors in cockpit |
--> RV-List message posted by: "Tim Bryan" <flyrv6@bryantechnology.com>
Is it possible a vent has come loose inside the cockpit?
-------Original Message-------
From: Jeff Dowling
Subject: RV-List: Fuel vapors in cockpit
--> RV-List message posted by: "Jeff Dowling" <shempdowling2@earthlink.net>
I cant find a fuel leak. I generally only smell fuel when Im flying
aggressively or in the bumps. It happens with either tank selected. I
checked all of the connections and cant find any signs of the telltale blue
fuel. It seems to be the worst when Im in a steep climb. I cant tell if
its a change in airflow or a change in where the fuel is sitting. Hmmmmm
Shemp/Jeff Dowling
RV-6A, N915JD
200 hours
Chicago/Louisville
Message 13
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| Subject: | Re: Fuel vapors in cockpit |
--> RV-List message posted by: "Phil Sisson, Litchfield Aerobatic Club" <sisson@consolidated.net>
Jeff Dowling wrote:
>--> RV-List message posted by: "Jeff Dowling" <shempdowling2@earthlink.net>
>
>I cant find a fuel leak. I generally only smell fuel when Im flying aggressively
or in the bumps. It happens with either tank selected. I checked all of
the connections and cant find any signs of the telltale blue fuel. It seems to
be the worst when Im in a steep climb. I cant tell if its a change in airflow
or a change in where the fuel is sitting. Hmmmmm.
>
>Shemp/Jeff Dowling
>RV-6A, N915JD
>200 hours
>Chicago/Louisville
>
>
Jeff this is just an opinion, but when in a climb, the air in the fuel
tank will exhale and when in a descent, it will inhale.
Then tank breathes in and out through the vent as the airplane goes up
and down. In a steep climb, it is breathing out at a very high rate. The
air in the tank will expand a lot when climbing. If the tanks were
nearly full and your angle of attack was enough to put the fuel back to
the vent tubes. the small amount of air which would be in the tank
would blow fuel out the vents. Then it would find its way into the
cockpit just like the cold air gets in in the winter. Just an oppinion,
but I bet there are some fluid guys who can go much deeper into this...
A solution would be to run the vent on down the gear leg and run it out
through a small hole in the wheel pants. The Pitts runs theirs down and
turns it back to keep bugs and oncoming trash out of it. This would help
keep the vapors out of the cabin. Other than that, just do a good job
sealing things..
Phil mine stinks too
>
>
Message 14
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| Subject: | Re: Sniffel Valve 0.11 HTML_TAG_EXIST_TBODY BODY: HTML |
has "tbody" tag 0.00 HTML_NONELEMENT_00_10 BODY: 0% to 10% of HTML
elements are non-standard
--> RV-List message posted by: "Dan Checkoway" <dan@rvproject.com>
Stan,
Something people haven't mentioned yet is that the sniffle valve is intended
for horizontal (forward-facing) induction sumps. I assume you have a
vertical induction sump? You don't need a sniffle valve on a vertical
setup.
If yours is horizontal, look on the bottom of the sump. If you see a plug
in roughly the center, then you have provisions for a sniffle valve. Should
just be an 1/8-NPT hole. If you have that, and if you want the Lycoming
part number for the valve, lemme know (I don't have my Lyc parts catalog in
front of me at the moment).
I've heard of some people having a horizontal sump without the
drilled/tapped sniffle valve hole...and apparently it's ok to drill and tap
it yourself (I remember reading an email from Mahlon mentioning that). I
personally wouldn't do that on mine, but I guess some people might.
Anyway, there are two styles of Lycoming-proper sniffle valves. Both have
basically the same upper body. It's a wafer/diaphragm that seals when it
gets sucked up by engine vacuum, and allows flow when the wafer falls as the
suction stops. The difference in valve styles is that one style is wide
open below the wafer, and fuel can just dump out -- in our case, that
usually means dripping onto the cowling or worse, the exhaust. The other
style (which I use, and which Van's recommends) has a barb to which you can
attach some hose, and then run the runoff out to where it won't cause any
harm. Van's calls this out on one of the FWF kit drawings for the 200hp
forward-facing setup.
Let me know if you need the part numbers.
Hope this helps,
)_( Dan
RV-7 N714D
http://www.rvproject.com
----- Original Message -----
From: "Stan Jones" <stan.jones@xtra.co.nz>
Subject: RV-List: Sniffel Valve 0.11 HTML_TAG_EXIST_TBODY BODY: HTML has
"tbody" tag 0.00 HTML_NONELEMENT_00_10 BODY: 0% to 10% of HTML elements are
non-standard
> --> RV-List message posted by: "Stan Jones" <stan.jones@xtra.co.nz>
>
> I was going through the drawings for Firewall Forward today, and came
across
> the term
> Sniffel Valve. What is this, and what does it do. Do I need one on my
> Superior IO 360
> with AFP fuel injection
> Stan Jones.
>
>
Message 15
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| Subject: | Re: Fuel vapors in cockpit |
--> RV-List message posted by: Jeff Point <jpoint@mindspring.com>
How about a small leak in the tank access plate with vapors coming in
through the aileron pushrod hole. Pull the wing root fairings and have
a look.
Jeff Point
>
>
Message 16
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| Subject: | Re: RV-4 air vent |
--> RV-List message posted by: "Randy Lervold" <randy@romeolima.com>
Ian, I'd appreciate some pics (e-mail address in header) as I plan to plumb
my RV-3 that way. I have pics of two such installations, but the more
installation ideas the better.
Thanks,
Randy
www.rv-3.com
> Doug,
> I get my air for the front seat from the front of the cowling as Randy
> described. I measure about 3 degrees higher than outside using this
> method.
> Much improved over the rear baffle pickup point. For the rear seat, I
> retrofitted an under the wing naca style similar to the rv-8. Very nice
> air
> flow and little extra noise. Pictures if needed.
>
> Ivan Haecker -4 1155 hrs. S. Cen. TX (where it's hot)
Message 17
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| Subject: | Re: Fuel vapors in cockpit |
--> RV-List message posted by: "Randy Lervold" <randy@romeolima.com>
Jeff,
I went through this with my RV-8... occasional fuel smell in the cockpit
with no signs of a leak anywhere. Smell seemed to coincide with either full
tanks or flying in the bumps. What I concluded was that fuel was puking out
the fuel vents then flowing past the fuselage and vapors being sucked into
the aft part of the fuselage. It doesn't take much to smell fuel, and the
negative pressure in the aft fuselage area is well documented. I have no
proof of this hypothesis but the circumstances sure seemed to fit.
Randy Lervold
www.rv-3.com
www.rv-8.com
> I cant find a fuel leak. I generally only smell fuel when Im flying
> aggressively or in the bumps. It happens with either tank selected. I
> checked all of the connections and cant find any signs of the telltale
> blue fuel. It seems to be the worst when Im in a steep climb. I cant
> tell if its a change in airflow or a change in where the fuel is sitting.
> Hmmmmm.
>
> Shemp/Jeff Dowling
> RV-6A, N915JD
> 200 hours
> Chicago/Louisville
Message 18
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| Subject: | Re: Fuel vapors in cockpit |
--> RV-List message posted by: HCRV6@aol.com
Shemp: I don't know if this will help but I had a similar problem at
about 20 hours and finally discovered that my Andair fuel valve was seeping
around one of the square cover plates that are secured with four tiny staked
screws. Tightening and restaking solved the problem.
Harry Crosby
RV-6 N16CX, 95 hours
Message 19
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| Subject: | Re: Fuel vapors in cockpit |
--> RV-List message posted by: "Jeff Dowling" <shempdowling2@earthlink.net>
The problem is I only smell it occasionally. I would think that if it was a
vent, I would smell it all the time. I don't?
----- Original Message -----
From: "Tim Bryan" <flyrv6@bryantechnology.com>
Subject: Re: RV-List: Fuel vapors in cockpit
> --> RV-List message posted by: "Tim Bryan" <flyrv6@bryantechnology.com>
>
> Is it possible a vent has come loose inside the cockpit?
>
> -------Original Message-------
>
> From: Jeff Dowling
> Date: 06/22/05 08:08:15
> To: rv-list@matronics.com
> Subject: RV-List: Fuel vapors in cockpit
>
> --> RV-List message posted by: "Jeff Dowling"
> <shempdowling2@earthlink.net>
>
> I cant find a fuel leak. I generally only smell fuel when Im flying
> aggressively or in the bumps. It happens with either tank selected. I
> checked all of the connections and cant find any signs of the telltale
> blue
> fuel. It seems to be the worst when Im in a steep climb. I cant tell if
> its a change in airflow or a change in where the fuel is sitting. Hmmmmm
>
> Shemp/Jeff Dowling
> RV-6A, N915JD
> 200 hours
> Chicago/Louisville
>
>
>
Message 20
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| Subject: | Re: Fuel vapors in cockpit |
--> RV-List message posted by: "Jeff Dowling" <shempdowling2@earthlink.net>
Wouldn't that eliminate the pressurizing effects of the fuel vents? I
thought that was desirable.
----- Original Message -----
From: "Phil Sisson, Litchfield Aerobatic Club" <sisson@consolidated.net>
Subject: Re: RV-List: Fuel vapors in cockpit
> --> RV-List message posted by: "Phil Sisson, Litchfield Aerobatic Club"
> <sisson@consolidated.net>
>
> Jeff Dowling wrote:
>
>>--> RV-List message posted by: "Jeff Dowling"
>><shempdowling2@earthlink.net>
>>
>>I cant find a fuel leak. I generally only smell fuel when Im flying
>>aggressively or in the bumps. It happens with either tank selected. I
>>checked all of the connections and cant find any signs of the telltale
>>blue fuel. It seems to be the worst when Im in a steep climb. I cant
>>tell if its a change in airflow or a change in where the fuel is sitting.
>>Hmmmmm.
>>
>>Shemp/Jeff Dowling
>>RV-6A, N915JD
>>200 hours
>>Chicago/Louisville
>>
>>
> Jeff this is just an opinion, but when in a climb, the air in the fuel
> tank will exhale and when in a descent, it will inhale.
> Then tank breathes in and out through the vent as the airplane goes up
> and down. In a steep climb, it is breathing out at a very high rate. The
> air in the tank will expand a lot when climbing. If the tanks were
> nearly full and your angle of attack was enough to put the fuel back to
> the vent tubes. the small amount of air which would be in the tank
> would blow fuel out the vents. Then it would find its way into the
> cockpit just like the cold air gets in in the winter. Just an oppinion,
> but I bet there are some fluid guys who can go much deeper into this...
> A solution would be to run the vent on down the gear leg and run it out
> through a small hole in the wheel pants. The Pitts runs theirs down and
> turns it back to keep bugs and oncoming trash out of it. This would help
> keep the vapors out of the cabin. Other than that, just do a good job
> sealing things..
>
> Phil mine stinks too
>
>>
>>
>
>
>
Message 21
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| Subject: | Re: Fuel vapors in cockpit |
--> RV-List message posted by: "Jeff Dowling" <shempdowling2@earthlink.net>
I've pulled the left fairing and dont see any blue streaks.
How can I pressurize the tank, slightly, to see if I have a leak? I guess I
can connect a tube to my vent and pump some air but Im afraid of
overpressurizing.
----- Original Message -----
From: "Jeff Point" <jpoint@mindspring.com>
Subject: Re: RV-List: Fuel vapors in cockpit
> --> RV-List message posted by: Jeff Point <jpoint@mindspring.com>
>
> How about a small leak in the tank access plate with vapors coming in
> through the aileron pushrod hole. Pull the wing root fairings and have
> a look.
>
> Jeff Point
>
>
>>
>>
>
>
>
Message 22
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| Subject: | Re: Fuel vapors in cockpit |
--> RV-List message posted by: "Jeff Dowling" <shempdowling2@earthlink.net>
I also have the Andair valve. Were you able to see blue dye?
----- Original Message -----
From: <HCRV6@aol.com>
Subject: Re: RV-List: Fuel vapors in cockpit
> --> RV-List message posted by: HCRV6@aol.com
>
> Shemp: I don't know if this will help but I had a similar problem at
> about 20 hours and finally discovered that my Andair fuel valve was
> seeping
> around one of the square cover plates that are secured with four tiny
> staked
> screws. Tightening and restaking solved the problem.
>
> Harry Crosby
> RV-6 N16CX, 95 hours
>
>
>
Message 23
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--> RV-List message posted by: "Moore, Warren" <Warren.Moore@TidelandsOil.com>
fwiw, I installed a NACA inlet duct, (sv-1) the plastic one from vans, just
under the cowl cheek on the right side of the fuselage as far forward as
possible, about 1.5 inches back from the firewall. I ran a lenght of 2"
scat tube to an aluminum I-ball vent mounted on the lower right side of the
panel. The scat tube really doesn't get in the way of your leg, which was
one concern I had. Been flying now for a whole 4 hrs...but getting plenty
of air. Would do it again. I also put a NACA duct on the bottom of the
right wing, per the RV8, and ran a scat tube to the back seat, and put a
vent (Vans vent sv5) right next to the rear stick. I also used a "T"
fitting to split off a 2" scat tube to the front seat, and put another vent
next to the fuel selector. I ran this scat tube where the plans call for
the rear seat heating tube, only ran it backwards....so no heat to the rear
seat. So when flying solo, I close the rear seat vent and let it blast
through the front on my stomach, so I have two vents in the front and
getting plenty of air.
Warren Moore
RV-4, still test flying
Cable Airport, Ca.
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AAAAV0FSUkVOIE1PT1JFAAAAAAIB+z8BAAAAVAAAAAAAAADcp0DIwEIQGrS5CAArL+GCAQAAAAAA
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Message 24
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HTML has \"tbody\" tag 0.00 HTML_NONELEMENT_00_10 BODY": 0%to.10@of.HTML.elements.are.non-standard
| Subject: | Re: Sniffel Valve 0.11 HTML_TAG_EXIST_TBODY BODY: |
HTML has "tbody" tag 0.00 HTML_NONELEMENT_00_10 BODY: 0% to 10% of
HTML elements are non-standard
--> RV-List message posted by: gert <gert.v@sbcglobal.net>
Dan Checkoway wrote:
>Anyway, there are two styles of Lycoming-proper sniffle valves. Both have
>basically the same upper body.
>
Dan
When I called Lycoming a few months ago, discussing this item they were
kinda adament I make sure I get the one for a normally aspired engine as
many are out there intended for turbo'd engines and close on manifold
pressure over ambient. They also wanted to know what airframe the engine
was hanging from and did not tell me squat after I told them it was a
RV. I was a bit supprised at that attetude as I have had very good/nice
responses from Lycoming on other subjects and theye were very helpfull
in the past.
I ended up talking to Bart LaLonde and got one from him.
just a data point.
>
>is subject to a download and archival fee in the amount of $500
>
>
Message 25
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| Subject: | GretzAero Electric Trim Kit |
--> RV-List message posted by: Brad Oliver <brad@rv7factory.com>
While doing research the other day I came across some old posts in the
archive referencing the GretzAero Electric Trim Kit. The concept
intrigued me and I dug a little deeper and, but I have some
questions...
1) By moving the trim servo out of the elevator, GretzAero touts an
overall weight reduction. Anybody who is using this know how much
weight? Does it also change the feel of the elevator? If so, in a
good or bad way?
2) Objectively, is this mod a good idea, or is it simply a perceived
improvement? I am interested in hearing comparisons of the factory
electric trim to the GretzAero set-up, not to manual trim, and I don't
want to start making mods unless there is real value.
3) GretzAero says the kit is best for aircraft originally built with
manual trim, however I purchased my RV-7 emp kit with electric trim,
but haven't constructed the elevator(s) yet. Is this mod (kit)
something that can be installed using the factory trim servo and parts?
I have attempted to contact GretzAero directly, but they have not
responded to my inquiry.
Thanks,
Brad Oliver
RV-7
Livermore, CA
Message 26
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| Subject: | Re: Fuel vapors in cockpit |
--> RV-List message posted by: "Brian Denk" <akroguy@hotmail.com>
>
>Jeff,
>
>I went through this with my RV-8... occasional fuel smell in the cockpit
>with no signs of a leak anywhere. Smell seemed to coincide with either full
>tanks or flying in the bumps. What I concluded was that fuel was puking out
>the fuel vents then flowing past the fuselage and vapors being sucked into
>the aft part of the fuselage. It doesn't take much to smell fuel, and the
>negative pressure in the aft fuselage area is well documented. I have no
>proof of this hypothesis but the circumstances sure seemed to fit.
>
>Randy Lervold
>www.rv-3.com
>www.rv-8.com
>
Same thing with my RV8. Only happens on full tanks, or while flying in
rough air. I've never found any signs of leakage inside the cabin around
the fuel selector or boost pump. I reckon the airplane thinks the tank
vents are relief tubes and when you gotta go, you gotta go!
Brian Denk
RV8 N94BD
RV10 '51
Message 27
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| Subject: | RV-4 NACA vent installation pic |
--> RV-List message posted by: Ron Lee <ronlee@pcisys.net>
See weblink. Case sensitive. Will ask the builder how well it works
but I believe it is good.
Ron Lee
http://home.pcisys.net/~ronlee/RV4NACA.JPG
Message 28
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--> RV-List message posted by: rveighta <rveighta@earthlink.net>
I have the following items for sale which are left over from my 8A & 8 projects:
1. Whelen strobe system 2 (includes two A490A, TS, CF Power supplies; two A600-PG
PR wingtip strobe lights;
and 2 HT installation kits with instructions. All like new in box - never
used. New price at ACS $955, I will take
$800 for all.
2. Softcomm ATC-2P panel mount intercom complete with wiring harness, jacks, drawings
& instructions. Never
used. New price at ACS $173.95, will sell for $120.
3. Lightspeed 20K ANR headset. Bought new in '97. It had a "squeal" in it - sent
off to factory and they repaired
4/22/04. Not used since. Very good condition. Sell for $100
4. Standard three lever throttle/mixture/prop quadrant from Van's. Never used
- cost $45 new, sell for $25
5. Tach transducer from Van's for system without vacuum pump. Cost $60, take $35.
6. Van's ammeter w/shunt. Paid $51, take $30.
7. Whelen post lights (2) (clear) Cost at aircraft spruce 70.60, take $50
8. Westach Single CHT gauge. New cost $35.30, sell for $20.
Please email if you are interested or give me a call at: (423) 257-6566.
Walt Shipley
9. Westach Single EGT gauge. New cost $35.30, sell for $20
Message 29
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|
| Subject: | Re: Fuel vapors in cockpit |
--> RV-List message posted by: "Dean" <dvanwinkle@royell.net>
Jeff
If you do find a way to pressurize your tank, I would not recommend much
more than one psi. That is what I used when leak checking my tanks ( approx
27 inches differential on a simple plastic tube water manometer ). That was
enough to see definite deflection of the tank skin between the ribs. One
builder reported using four psi and suffered permanent deformation of his
tank.
Dean Van Winkle
RV-9A Fuselage/Finish
----- Original Message -----
From: "Jeff Dowling" <shempdowling2@earthlink.net>
Subject: Re: RV-List: Fuel vapors in cockpit
> --> RV-List message posted by: "Jeff Dowling"
<shempdowling2@earthlink.net>
>
> I've pulled the left fairing and dont see any blue streaks.
>
> How can I pressurize the tank, slightly, to see if I have a leak? I guess
I
> can connect a tube to my vent and pump some air but Im afraid of
> overpressurizing.
>
>
> ----- Original Message -----
> From: "Jeff Point" <jpoint@mindspring.com>
> To: <rv-list@matronics.com>
> Subject: Re: RV-List: Fuel vapors in cockpit
>
>
> > --> RV-List message posted by: Jeff Point <jpoint@mindspring.com>
> >
> > How about a small leak in the tank access plate with vapors coming in
> > through the aileron pushrod hole. Pull the wing root fairings and have
> > a look.
> >
> > Jeff Point
> >
> >
> >>
> >>
> >
> >
> >
>
>
Message 30
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| Subject: | Re: Fuel vapors in cockpit |
--> RV-List message posted by: linn walters <lwalters2@cfl.rr.com>
Also, you can use a vacuum cleaner that is set up to blow. In the case
of a tank, I'd tape a 1/2" piece of PVC pipe to the end of the hose to
limit the volume. Some vacuum cleaners can really overpressure your
tank!!!!
Linn
do not archive
Dean wrote:
>--> RV-List message posted by: "Dean" <dvanwinkle@royell.net>
>
>Jeff
>
>If you do find a way to pressurize your tank, I would not recommend much
>more than one psi. That is what I used when leak checking my tanks ( approx
>27 inches differential on a simple plastic tube water manometer ). That was
>enough to see definite deflection of the tank skin between the ribs. One
>builder reported using four psi and suffered permanent deformation of his
>tank.
>
>Dean Van Winkle
>RV-9A Fuselage/Finish
>
>----- Original Message -----
>From: "Jeff Dowling" <shempdowling2@earthlink.net>
>To: <rv-list@matronics.com>
>Subject: Re: RV-List: Fuel vapors in cockpit
>
>
>
>
>>--> RV-List message posted by: "Jeff Dowling"
>>
>>
><shempdowling2@earthlink.net>
>
>
>>I've pulled the left fairing and dont see any blue streaks.
>>
>>How can I pressurize the tank, slightly, to see if I have a leak? I guess
>>
>>
>I
>
>
>>can connect a tube to my vent and pump some air but Im afraid of
>>overpressurizing.
>>
>>
>>----- Original Message -----
>>From: "Jeff Point" <jpoint@mindspring.com>
>>To: <rv-list@matronics.com>
>>Subject: Re: RV-List: Fuel vapors in cockpit
>>
>>
>>
>>
>>>--> RV-List message posted by: Jeff Point <jpoint@mindspring.com>
>>>
>>>How about a small leak in the tank access plate with vapors coming in
>>>through the aileron pushrod hole. Pull the wing root fairings and have
>>>a look.
>>>
>>>Jeff Point
>>>
>>>
>>>
>>>
>>>>
>>>>
>>>
>>>
>>>
>>
>>
>
>
>
>
Message 31
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--> RV-List message posted by: SCOTT SPENCER <aerokinetic@sbcglobal.net>
>>>Doug,
I get my air for the front seat from the front of the cowling as Randy
described. I measure about 3 degrees higher than outside using this method.
Much improved over the rear baffle pickup point. For the rear seat, I
retrofitted an under the wing naca style similar to the rv-8. Very nice air
flow and little extra noise. Pictures if needed.
>> Ivan Haecker -4 1155 hrs. S. Cen. TX (where it's hot)
This is exactly the same setup I have on my -4... I constructed a smaller NACA
myself out of fiberglass for the underwing inlet -uses 1.75" scat and works very
well. The underwing inlet is just aft of the pitot tube location aft of the
spar and outboard of any exhaust.
I also added a VAN's NACA under the left cowl cheek just aft of the firewall and
installed it with proseal. It's the very best -brings in *plenty* of air and
it's not warmed at all by the engine like the air from the engine inlet. In fact,
I think there is enough air to tee off to two separate Wemac vents from the
one inlet.
On top of all this, I also have a closeable NACA in the canopy skirt by the passenger's
right shoulder... It works okay, but mostly blows air behind the passenger
-even with a little deflector working to angle the air.
Scott
N4ZW
Message 32
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| Subject: | Re: Bigger tires for 6A on grass? |
--> RV-List message posted by: Mickey Coggins <mick-matronics@rv8.ch>
> Generally 6" wheels use a 1.5" axle whereas 5" wheels use a 1.25" axle. I'm
> planning to use Grove wheels and they make a 6" wheel that uses a 1.25" axle
> that will fit on my Grove gear legs.
Ahh, I didn't know they had that product. I've got the Grove gear
as well, and it's nice to know I have that as an option. Switzerland
is about 50% grass strips.
Thanks,
Mickey
--
Mickey Coggins
http://www.rv8.ch/
#82007 Canopy
Message 33
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--> RV-List message posted by: Wheeler North <wnorth@sdccd.edu>
Wuups,
Didn't mean to cause a ruckus or instigate the ire of the list police, I
just figure a good discussion about some of the basics rules will always be
good for us who fly RVs. Sorry if I offended anyone.
RE Class G, or more to the point, where do you measure the 1200'/700' from,
which was the point of my question? Straight down, general surrounding
terrain, does lateral distance to terrain count? I've been more than 1200 ft
from the straight down ground, but the peak next to me was only 100 ft away.
Does the ceiling of the Class G airspace in that area have a nice airport
sized bump in it?
In other words, At 500 yds out I would be at 1400 ft AGL (Class E) on final,
but at 300 yds out I would suddenly transition to 200 ft AGL (Class G) even
though I've only descended a 100ft MSL?
I'm guessing, to stay legal, one would not be able to fly anything close to
a normal approach.
do not archive
PS,
Since I didn't know the answer to this that day I went to Wickenburg
instead... that's my story, and I'm sticking to it!!!
Message 34
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| Subject: | Re: Fuel vapors in cockpit |
--> RV-List message posted by: "Stan Jones" <stan.jones@xtra.co.nz>
Jeff, Vans sells a kit, just a few dollars, a valve goes on your fuel drain
plug, a balloon on your vent,
Duct tape over your fuel cap. When the balloon inflates you will have a
positive pressure of just a pound or so.
Get some mixture from the toy shop that kids make bubbles with, and paint it
over your suspected leaks.
I used the Vans kit and it works well.
Stan Jones
-------Original Message-------
From: Jeff Dowling
Subject: Re: RV-List: Fuel vapors in cockpit
--> RV-List message posted by: "Jeff Dowling" <shempdowling2@earthlink.net>
I've pulled the left fairing and dont see any blue streaks.
How can I pressurize the tank, slightly, to see if I have a leak? I guess I
can connect a tube to my vent and pump some air but Im afraid of
overpressurizing.
----- Original Message -----
From: "Jeff Point" <jpoint@mindspring.com>
Subject: Re: RV-List: Fuel vapors in cockpit
> --> RV-List message posted by: Jeff Point <jpoint@mindspring.com>
>
> How about a small leak in the tank access plate with vapors coming in
> through the aileron pushrod hole. Pull the wing root fairings and have
> a look.
>
> Jeff Point
>
>
>>
>>
>
>
Message 35
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SpamAssassin (score=-2.563, required 4, autolearn=not spam, AWL 0.04,
BAYES_00 -2.60)
--> RV-List message posted by: "Larry E. James" <larry@ncproto.com>
Has anyone put a second naca duct under the left wing (like
the RV-8) and routed it to the front seat for fresh air ??
--
Larry E. James
Bellevue, WA HR2
Message 36
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| Subject: | Re: RV-4 air vent |
--> RV-List message posted by: HalBenjamin@aol.com
In a message dated 6/22/2005 2:36:46 AM Eastern Standard Time,
baremetl@gvtc.com writes:
> Doug,
> I get my air for the front seat from the front of the cowling as Randy
> described. I measure about 3 degrees higher than outside using this method.
> Much improved over the rear baffle pickup point. For the rear seat, I
> retrofitted an under the wing naca style similar to the rv-8. Very nice air
> flow and little extra noise. Pictures if needed.
>
> Ivan Haecker -4 1155 hrs. S. Cen. TX (where it's hot)
>
>
Hi Ivan,
I'm fishing for ideas to cool my RV-4 as well. Sounds like you've got what
I've been thinking about doing. Could you upload photos to the list?
Thanks,
Hal Benjamin RV-4
Long Island, New York
Standing on head in fuselage stage
Message 37
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--> RV-List message posted by: "Darwin N. Barrie" <ktlkrn@cox.net>
I've been flying tour helicopters up there lately and was surprised at the amount
of big iron that is in and out of there. The other day 2 different G4's, a
Tri star, CJ's and lots of Turbo props.
The big deal at Sedona is the DA. I haven't been up this week but last week we
had a DA of 8900 ft. Lots of fun with a fully loaded helicopter!!!! Thank God
for those tranient temp limits.
Darwin N. BArrie
P19
Message 38
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--> RV-List message posted by: Ron Lee <ronlee@pcisys.net>
>The big deal at Sedona is the DA. I haven't been up this week but last
>week we had a DA of 8900 ft. Lots of fun with a fully loaded
>helicopter!!!! Thank God for those tranient temp limits.
DA at Meadow Lake today was 8400' and it will get worse. I have seen
over 12,000' DA at Leadville.
Ron Lee
do not archive
Message 39
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| Subject: | Oshkosh Yodeler- not RV related |
--> RV-List message posted by: Jeff Point <jpoint@mindspring.com>
This is not RV related and do not archive in any event.
Some sad news from yesterday- Bill Rickets, the "Baltimore Oriole,"
better known as the morning yodeler at Oshkosh, passed away yesterday
after a bout with cancer. Anyone who has tried to sleep in past 7:00AM
at the Oshkosh campgrounds knows who I'm talking about. He will be missed.
A friend who runs the EAA radio station during the convention has a
library of recordings of Bill's past performances. I've been assured
that these recordings will be played at the usual time all week during
the convention. He has some of them on his server and they can be
accessed here. I listened to a few of them and they really get the
blood flowing for Oshkosh. Too bad it couldn't be under better
circumstances.
http://12.221.183.17:81/share/Audio/EAA%20Radio/Airventure%202004/Ricketts%20Racket/
AOL users will have to cut and paste the link as always. The files are
all in MP3 format.
Jeff Point
RV-6
Milwaukee WI
29 days until OSH
Message 40
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| Subject: | Cowl Camlocs, Brakeline brackets |
--> RV-List message posted by: "DEAN PSIROPOULOS" <dean.psiropoulos@verizon.net>
Two questions:
Camlocs-Those who put them on your epoxy type S cowl..... Did you epoxy or
glass in a metal reinforcing strip underneath (or above) the area where you
put the holes for the camlocs? If so how thick of a strip did you use? Did
you just epoxy the strip to the back of the cowl or did you put a layer of
glass cloth over it too? Or is this seemingly thin fiberglass tough enough
to take those point loads all by itself? I'm using 4 inch spacing on the
camlocs.
Brakelines-I just installed the flex lines that go from the master cylinders
to the firewall bracket (tri gear RV-6). Surprise, surprise......things are
very tight there and the hoses touch the .063 firewall angle stiffeners that
meet above the bracket. I rechecked the plans and....I made and installed
the bracket correctly. But, I'm afraid the hoses will chafe and I'll have
fluid all over the floor. I'm not a happy camper about that but I've got
them installed and it's per plans so I'm really not inclined to make
modifications right now. Good idea to leave as is or not? I didn't find
much about this in the archives so I assume people are living with it. You
tri-gear 6s, has this been a problem? If yes how did you fix?
Thanks for all the help
Dean Psiropoulos
RV-6A N197DM
Paneling and trying to finish cowling
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