Today's Message Index:
----------------------
1. 03:17 AM - Re: Tire pressure problem (Larry Portouw)
2. 04:59 AM - Re: Tire pressure problem (Bob Unternaehrer)
3. 05:44 AM - Re: REDUCTIONS CONVERSIONS (lynn dingfelder)
4. 05:51 AM - Re: Altitude peformance - 12/27/05 (cgalley)
5. 06:32 AM - Re: Aux tank plumbing (bill naumuk)
6. 06:54 AM - Re: Aux tank plumbing (Bryan Martin)
7. 07:00 AM - Re: REDUCTIONS CONVERSIONS (Jim and Lucy)
8. 07:03 AM - Re: XL Aux fuel tanks (T. Graziano)
9. 08:07 AM - Re: Tire pressure problem (Larry McFarland)
10. 08:17 AM - Re: Tire pressure problem (japhillipsga@aol.com)
11. 08:49 AM - Re: REDUCTIONS CONVERSIONS ()
12. 09:18 AM - Long Range Fuel Tanks (Doug Sire)
13. 10:10 AM - Re: Long Range Fuel Tanks (Paul Mulwitz)
14. 10:10 AM - Re: REDUCTIONS CONVERSIONS ()
15. 03:56 PM - Re: Long Range Fuel Tanks (Bob Unternaehrer)
16. 05:01 PM - Re: Tachometers (John anderson)
Message 1
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| Subject: | Re: Tire pressure problem |
--> Zenith-List message posted by: "Larry Portouw" <Larry@portouw.com>
Larry,
Be sure to spread a little bit of talc around the inside of the tire
before assembly. Then after assembly, air it up to max, and then deflate
completely, and re-air it to operating pressure. This will help the tube
settle into a less stressed position in the tire.
When I first changed the tires on my tri-pacer, I found two of the tubes
actually had wrinkles and creases in them from being folded inside the
tire-- a blow out waiting to happen.
Larry Portouw
601XL Kit
Atlanta
---------------------------------
Hi guys,
This past week I've been airing up tires and found that my left main
was down by 3 PSI per day, so I removed the wheel and tire and brought
it home. Didn't see anything so I finally disassembled
the tire and wheel and found a small crack around one quarter the
perimeter and
directly next to the valve stem. The 3.5 x 8.0 tube would have to be
replaced. <SNIP>
Have a good one,
Larry McFarland - 601HDS at www.macsmachine.com
Message 2
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| Subject: | Re: Tire pressure problem |
--> Zenith-List message posted by: "Bob Unternaehrer" <shilocom@mcmsys.com>
<<< Didn't see anything so I finally disassembled
> the tire and wheel and found a small crack around one quarter the
> perimeter and
> directly next to the valve stem.>>>
You might have had a fold in the tube when installed. You probalby know
this but be sure and use some "tire talc" or baby powder and inflate and
deflate it a couple times with the valve core removed. Bob U.
----- Original Message -----
From: "Larry McFarland" <larrymc@qconline.com>
Subject: Zenith-List: Tire pressure problem
> --> Zenith-List message posted by: Larry McFarland <larrymc@qconline.com>
>
> Hi guys,
> This past week I've been airing up tires and found that my left main
> was down by 3 PSI per day, so I removed the wheel and tire and brought
> it home. Didn't see anything so I finally disassembled
> the tire and wheel and found a small crack around one quarter the
> perimeter and
> directly next to the valve stem. The 3.5 x 8.0 tube would have to be
> replaced.
>
> Remembering the chatter on tire pressure, I realized that even though
> the tires
> are a good fit, 36 psi on the tire can't be ignored and left too low.
> I've been using
> 25 psi, but the tire and tube may be shifting slightly during touch down.
> After about 100 landings at 80 hours, the tube was like new but for this
> stress point at the stem. Going to try to hold them at 32 psi from now on
> to see if that was the problem. I've no wear showing on the S83 Michelin
> 3.5 x 8.0 tires at all.
> Perhaps it's better to hold most of the rated PSI to avoid a flat at some
> obscure airport one day.
>
> Have a good one,
>
> Larry McFarland - 601HDS at www.macsmachine.com
>
>
Message 3
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| Subject: | Re: REDUCTIONS CONVERSIONS |
--> Zenith-List message posted by: "lynn dingfelder" <ding@tbscc.com>
Bob,
Reductions is no longer in business. He retired partly due to
health issues.
Lynn
Corry, PA
do not archive
Message 4
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| Subject: | Re: Altitude peformance - 12/27/05 |
--> Zenith-List message posted by: "cgalley" <cgalley@qcbc.org>
The actual ram effect improvement is less than an inch. Mooney may have
gotten 2 but is was mainly eliminating the poor induction filter system.
Cy Galley
EAA Safety Programs Editor
Always looking for ideas and articles for EAA Sport Pilot
----- Original Message -----
From: <EMAproducts@aol.com>
Subject: Zenith-List: Altitude peformance - 12/27/05
> --> Zenith-List message posted by: EMAproducts@aol.com
>
>
> I plan to do some work on increasing manifold pressure using some
> variation on air scoops. This may help a little bit by compressing
> the air entering the engine. I am sure this will be severely
> limited but I intend to do it with no moving parts so it will also be
> very inexpensive.
>
> Paul
>
>
> Paul,
> Back in the '60's I delivered Mooney's from the factory. Their "Super
> 21"
> had ram air door that would give about 2" above standard, it bypassed the
> airfilter and went directly to the carb or fuel injection ~ forgot which
> it had
> now. Only problem is I don't think the Zenith's will go fast enough to
> gain
> much.
>
> Elbie
>
> Elbie Mendenhall
> President
> EM Aviation, LLC
> 13411 NE Prairie Rd
> Brush Prairie, WA 98606
> 360-260-0772
>
>
>
Message 5
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| Subject: | Re: Aux tank plumbing |
--> Zenith-List message posted by: "bill naumuk" <billn@velocity.net>
Chris-
If you're trying to reach 44 gal capacity, you might have another
option. Though they're made for the HD/HDS, can't see why you couldn't use
the wing locker tanks. 2x7 gallons for $695 including the pump and plumbing.
Bill
do not
archive
----- Original Message -----
From: "Chris sinfield" <chris_sinfield@yahoo.com>
Subject: Zenith-List: Aux tank plumbing
> --> Zenith-List message posted by: Chris sinfield
<chris_sinfield@yahoo.com>
>
> Hi All
> Well I did ask the factory about the Aux tanks and they came back
with a quote of around US$1100 for the extra 2 X 11 GAL tanks, plumbing,
lines and senders.. with a 5 way selector...
>
> Thats why I need to make my decision before I purchase the kit.. do I
get the 3 way or 5 way fuel valve???..
>
> But I liked the Idea of just pumping one aux tank to fill into the
adjacent main in flight as required..a bit like what Branden said.. and yes
I would watch the Weight and Balance .. as well as the AUW..
> Chris..
> From Down Under
>
>
> ---------------------------------
>
>
Message 6
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| Subject: | Re: Aux tank plumbing |
--> Zenith-List message posted by: Bryan Martin <bryanmmartin@comcast.net>
The wings on the XL are thinner than the HD wings. I don't know if wing
locker tanks are made for the XL.
--
Bryan Martin
N61BM, CH 601 XL, Stratus Subaru.
do not archive.
on 12/29/05 9:30 AM, bill naumuk at billn@velocity.net wrote:
> --> Zenith-List message posted by: "bill naumuk" <billn@velocity.net>
>
> Chris-
> If you're trying to reach 44 gal capacity, you might have another
> option. Though they're made for the HD/HDS, can't see why you couldn't use
> the wing locker tanks. 2x7 gallons for $695 including the pump and plumbing.
>
> Bill
Message 7
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| Subject: | Re: REDUCTIONS CONVERSIONS |
--> Zenith-List message posted by: Jim and Lucy <jpollard@ciaccess.com>
At 10:54 PM 12/28/2005, you wrote:
>--> Zenith-List message posted by: <momanpop@marshallnet.com>
>
> Does anyone know if Reductions Conversions in Canada has a web
> site or an email address?
>
> Thanks
> Bob Tichy
This link will take you to the last website he had.
http://web.archive.org/web/*/http://www.mts.net/~davejohn/index.htm
This is a copy of his old website and not his actual website.
There is an email in there but it may not work any longer.
I think Dave had 2 or three versions of his EA81 redrive.
The newest one was stronger to be used on modified engines.
The oldest version is meant for a stock ea81.
Are you still looking for the engine mount parts?
Jim Pollard
Merlin Ont
Message 8
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| Subject: | Re: XL Aux fuel tanks |
--> Zenith-List message posted by: "T. Graziano" <tonyplane@bellsouth.net>
Chris,
When I ordered my 60lXL kit, which I received in Jan 04, I purchased the Aux
Fuel Tank Option with the two extra tanks. In this kit, the two inboard
main tanks had a 3/4 inch tube welded through the tank, through which the
fuel hose from the outboard tank passed and on to the five way Andair
selector (R/H Main; R/H Aux, OFF, L/H main, L/H Aux). I do not know if
Zenith still offers this option with their now 15 U.S. Gal vice 12 Gal
option.
The Dwg for the Aux Fuel Tank Option is 6-WKO-1. If the Aux tank option is
still available, I would think Zenith should be able to email you the
portion of the dwg that shows the four tanks with their routing to the 5 way
valve.
During my flight testing, I ran both Aux tanks to fuel exhaustion. This
resulted in sudden power loss both times, as expected, from my Jabiru 3300A.
Shifting the fuel selector to a main tank and turning on the fuel boost pump
resulted in engine restart within about 4 - 6 seconds from power loss.
Redesigning for additonal pumps/solienoids/fuel
lines/wiring/switches/related routings etc to pump from the Aux tanks to
refill Mains, is in my opinion too complex and would not as reliable as just
going to a five way selector valve.
Tony Graziano
601XL; N493TG
------------------
Time: 02:33:35 PM PST US
From: Chris sinfield <chris_sinfield@yahoo.com>
Subject: Zenith-List: XL Aux fuel tanks
--> Zenith-List message posted by: Chris sinfield <chris_sinfield@yahoo.com>
Hi
Guess what the wife signed off on for Christmas.. Yes the rest of the
kit.. now
the rudder is finished.. Since I will be getting all the bits in one Order
I would like to pose a Q to the builders of the XL with the duel Aux tank
set
up.
Flying in the Aussie Outback requires you to sometimes buy fuel in 44 Gal
drums..
yes 2 X 11gal tanks means you have to leave 1/2 of the drum behind (Great
for the next guy but bad and very expensive for you) So I plan to have the 2
extra tanks fitted in the leading edge for the odd time I need it..So
How have people plumbed it?.
I could not find much in the archives about the tanks so I have to ask
here.
Zenith say to plumb each tank to the center via a 5 way fuel selector. I
have
also been told by other non Zenith builders that I could just have a fuel
transfer
line and solenoid and just fill up the mains as required and keep the
plumbing
simple to inside the Fuse. So what have others done ahead of me? No need
to re invent the wheel..
Also where can you get all the back issues of the newsletters? do they
come with
the complete kit on CD or what? and are they worth getting for the first
time
builder?
Chris
Down Under..
Archive the answers
for others to follow..
Message 9
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| Subject: | Re: Tire pressure problem |
--> Zenith-List message posted by: Larry McFarland <larrymc@qconline.com>
Randy,
The 3.5 x 8.0 tube that failed was made by KENDA from Taiwan. Using
much lower PSI than
indicated on the tire may permit too much flexure and the stem is the
only immovable part retained
by the wheel, so it bends at the base of the stem.
The tube had no wear at the sides of the stem, but I suspect that a thin
inch and a half diameter patching
rubber washer might spread the distress out enough to offer better
lifespan. The tubes I bought yesterday
were the Bikemaster type too, but I hope they'll be OK. The only other
thing that might affect this is peak
pressure loading during touch down. I most often grease it on, but the
tube may still be pressing
against too large a slot in the wheel and cracking may be the result.
This is why I'm thinking of doing
a washer patch before the fact at the stem. Haven't looked at the
scooter wheel they are used in,
but perhaps it would also be a good idea to see how they normally are
fitted. The other two tires haven't
shown any problem so far. Had not considered going with a 4 x 8.0 tube yet.
Larry McFarland - 601HDS
Randy Stout wrote:
>--> Zenith-List message posted by: "Randy Stout" <n282rs@earthlink.net>
>
>Larry
>
>Remember a couple of months ago I emailed you about replacing my tires with
>the same ones as you have on your plane? I also bought new tubes with the
>tires. The name on the box was Bikemaster, but the tube itself has Cheng
>Shin on it. Two of them failed in exactly the same place as you describe
>and I hadn't even taxied on them. I ended up putting the orginial 4.8-8
>tubes back in since they wasn't showing any signs of rotting. Maybe there
>is some kind of defect in the manufacturing or something wrong with the fit
>between that tube and our wheels.
>
>Randy Stout
>n282rs"at"earthlink.net
>www.geocities.com/r5t0ut21
>
>
>
>
>
>
Message 10
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| Subject: | Re: Tire pressure problem |
--> Zenith-List message posted by: japhillipsga@aol.com
Larry, something else. On my XL I had started out with 28 pounds per tire. Taxied
ok, but wobbled like a duck on landings. Talked with Roger D @ ZAC and he said
50-55 pounds. Seemed way too high, but I pumped mine up to 45 pounds. Taxis
a lot straighter and though the touch down seems harder the roll out is straighter
and braking more authority. So, the pressure is important, Best regards,
Bill N505WP
-----Original Message-----
From: Larry Portouw <Larry@portouw.com>
Subject: Re: Zenith-List: Tire pressure problem
--> Zenith-List message posted by: "Larry Portouw" <Larry@portouw.com>
Larry,
Be sure to spread a little bit of talc around the inside of the tire
before assembly. Then after assembly, air it up to max, and then deflate
completely, and re-air it to operating pressure. This will help the tube
settle into a less stressed position in the tire.
When I first changed the tires on my tri-pacer, I found two of the tubes
actually had wrinkles and creases in them from being folded inside the
tire-- a blow out waiting to happen.
Larry Portouw
601XL Kit
Atlanta
---------------------------------
Hi guys,
This past week I've been airing up tires and found that my left main
was down by 3 PSI per day, so I removed the wheel and tire and brought
it home. Didn't see anything so I finally disassembled
the tire and wheel and found a small crack around one quarter the
perimeter and
directly next to the valve stem. The 3.5 x 8.0 tube would have to be
replaced. <SNIP>
Have a good one,
Larry McFarland - 601HDS at www.macsmachine.com
Message 11
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| Subject: | Re: REDUCTIONS CONVERSIONS |
--> Zenith-List message posted by: <momanpop@marshallnet.com>
Hi Jim.
The foremost mounting holes are not drilled on the re-drive. I need the dimensions
to get the correct skew on the prop.
Thanks Bob.
----- Original Message -----
From: Jim and Lucy
Subject: Re: Zenith-List: REDUCTIONS CONVERSIONS
--> Zenith-List message posted by: Jim and Lucy <jpollard@ciaccess.com>
At 10:54 PM 12/28/2005, you wrote:
>--> Zenith-List message posted by: <momanpop@marshallnet.com>
>
> Does anyone know if Reductions Conversions in Canada has a web
> site or an email address?
>
> Thanks
> Bob Tichy
This link will take you to the last website he had.
http://web.archive.org/web/*/http://www.mts.net/~davejohn/index.htm
This is a copy of his old website and not his actual website.
There is an email in there but it may not work any longer.
I think Dave had 2 or three versions of his EA81 redrive.
The newest one was stronger to be used on modified engines.
The oldest version is meant for a stock ea81.
Are you still looking for the engine mount parts?
Jim Pollard
Merlin Ont
Message 12
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| Subject: | Long Range Fuel Tanks |
--> Zenith-List message posted by: "Doug Sire" <dsire@imt.net>
My 601XL kit should ship in February, so I've been considering upgrading
to the long range fuel tank option before then. The only real reason to
do that would be to provide more flexibility in managing weight and
balance, since I don't have the long range bladder option. I'll be using
a J3300, I'm 200lbs and will be flying solo most of the time. I have the
wing locker option so can stow things there if need be. Any thoughts?
Message 13
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| Subject: | Re: Long Range Fuel Tanks |
--> Zenith-List message posted by: Paul Mulwitz <p.mulwitz@worldnet.att.net>
Hi Doug,
My only thought (besides the usual stuff involving young buxom
females) is if you want to change your order from ZAC you should do
it soon. I think they buy gas tanks from some outsource supplier so
a change in that area could have a serious impact on your shipment
date. Also, the main spar is different for the long range tanks so
lead time is an issue here too.
I opted for the wing lockers along with navigation lights and
strobes. If you are interested in using up 44 gallons of gas at one
time, I suppose you could put some in plastic cans and store them in
the wing lockers. (I don't think it was you, but someone in the last
few days mentioned the 44 gallon issue in Australia.)
Good luck with your kit.
Paul
XL wings
do not archive
At 09:14 AM 12/29/2005, you wrote:
>My 601XL kit should ship in February, so I've been considering upgrading
>to the long range fuel tank option before then. The only real reason to
>do that would be to provide more flexibility in managing weight and
>balance, since I don't have the long range bladder option. I'll be using
>a J3300, I'm 200lbs and will be flying solo most of the time. I have the
>wing locker option so can stow things there if need be. Any thoughts?
>
---------------------------------------------
Paul Mulwitz
32013 NE Dial Road
Camas, WA 98607
---------------------------------------------
Message 14
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| Subject: | Re: REDUCTIONS CONVERSIONS |
--> Zenith-List message posted by: <momanpop@marshallnet.com>
Thank you Lynn.
I will talk to zenith to get the info that I need.
Thanks again Bob.
do not archive
----- Original Message -----
From: lynn dingfelder
Subject: Re: Zenith-List: REDUCTIONS CONVERSIONS
--> Zenith-List message posted by: "lynn dingfelder" <ding@tbscc.com>
Bob,
Reductions is no longer in business. He retired partly due to
health issues.
Lynn
Corry, PA
do not archive
Message 15
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| Subject: | Re: Long Range Fuel Tanks |
--> Zenith-List message posted by: "Bob Unternaehrer" <shilocom@mcmsys.com>
I think they buy gas tanks from some outsource supplier so
a change in that area could have a serious impact on your shipment
Fuel tanks are made in house. At the recent workshop i marveled at the job
a young lady was doing tig welding them. bob U.
----- Original Message -----
From: "Paul Mulwitz" <p.mulwitz@worldnet.att.net>
Subject: Re: Zenith-List: Long Range Fuel Tanks
> --> Zenith-List message posted by: Paul Mulwitz
<p.mulwitz@worldnet.att.net>
>
> Hi Doug,
>
> My only thought (besides the usual stuff involving young buxom
> females) is if you want to change your order from ZAC you should do
> it soon. I think they buy gas tanks from some outsource supplier so
> a change in that area could have a serious impact on your shipment
> date. Also, the main spar is different for the long range tanks so
> lead time is an issue here too.
>
> I opted for the wing lockers along with navigation lights and
> strobes. If you are interested in using up 44 gallons of gas at one
> time, I suppose you could put some in plastic cans and store them in
> the wing lockers. (I don't think it was you, but someone in the last
> few days mentioned the 44 gallon issue in Australia.)
>
> Good luck with your kit.
>
> Paul
> XL wings
> do not archive
>
>
> At 09:14 AM 12/29/2005, you wrote:
> >My 601XL kit should ship in February, so I've been considering upgrading
> >to the long range fuel tank option before then. The only real reason to
> >do that would be to provide more flexibility in managing weight and
> >balance, since I don't have the long range bladder option. I'll be
using
> >a J3300, I'm 200lbs and will be flying solo most of the time. I have
the
> >wing locker option so can stow things there if need be. Any thoughts?
> >
>
> ---------------------------------------------
> Paul Mulwitz
> 32013 NE Dial Road
> Camas, WA 98607
> ---------------------------------------------
>
>
Message 16
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--> Zenith-List message posted by: "John anderson" <ande437@bellsouth.net>
Hi Bill,
Thanks for the numbers. I will file them in case another fix does not
work. Wicks has a tach drive that will screw directly into the tach drive
fitting on my 0235. I have really missed flying since I started this engine
conversion. Did not think it would take so long. What engine do you have?
Thanks again,
John
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