Gascolator/Mo-gas

Alan Hepburn · Post by **Alan Hepburn** » Sat Feb 18, 2012 10:28 am

I have encountered a problem with the standard MAM (=ACS) gascolator
when using mo-gas. The sealing gasket swells. I notice the current ACS
catalogue says "not for use with auto fuel". This gasket would appear
to be the only reason for not using it with mo-gas. Anybody know of a
source for a suitable gasket, or do I just roll my own from cork?

Al Hepburn

-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

Mike Kimball · Post by **Mike Kimball** » Sat Feb 18, 2012 10:28 am

I don't know what it looks like but I've made many of my own gaskets from
gasket material you can get at any auto store.

Mike

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
Alan Hepburn
Sent: Thursday, April 28, 2005 7:13 PM
To: rebel-builders@dcsol.com
Subject: Gascolator/Mo-gas

I have encountered a problem with the standard MAM (=ACS) gascolator
when using mo-gas. The sealing gasket swells. I notice the current ACS
catalogue says "not for use with auto fuel". This gasket would appear
to be the only reason for not using it with mo-gas. Anybody know of a
source for a suitable gasket, or do I just roll my own from cork?

Al Hepburn

-----------------------------------------------------------------
List archives located at: https://www.dcsol.com/login?mode=HTML
username "rebel" password "builder"
Subscription services located at:
https://www.dcsol.com/public/code/html-subscribe.htm
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

Ralph Baker · Post by **Ralph Baker** » Sat Feb 18, 2012 10:28 am

Alan,
If you can get a sheet of Viton (rubberlike) material it is impervious
to auto fuel. I would be careful with cork as it may crumble.
Ralph Baker

-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

Terry Dazey · Post by **Terry Dazey** » Sat Feb 18, 2012 10:28 am

ALan:

If your Gascolator is similar to the one on my Long-EZ (I think that it is
also an ACS), there is also an o-ring at the drain end. You might want to
look at that also.

When the time comes, I think that I am going to use Andair selector and
gascolator as I believe they can use both fuels.

Regards,
Terry Dazey
Rebel 662

Sumner, Washington USA

-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

N.Smith · Post by **N.Smith** » Sat Feb 18, 2012 10:28 am

Hi Terry and all

I already have the Andair gascolator and fuel tank selector. I'm assured
they will both accept all types of fuel (mogas/avgas/jetA)

Nigel
745E

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
Terry Dazey
Sent: 02 May 2005 19:42
To: rebel-builders@dcsol.com
Subject: Re: gascolator/mo-gas

ALan:

If your Gascolator is similar to the one on my Long-EZ (I think that it is
also an ACS), there is also an o-ring at the drain end. You might want to
look at that also.

When the time comes, I think that I am going to use Andair selector and
gascolator as I believe they can use both fuels.

Regards,
Terry Dazey
Rebel 662

Sumner, Washington USA

-----------------------------------------------------------------
List archives located at: https://www.dcsol.com/login
username "rebel" password "builder"
Subscription services located at:
https://www.dcsol.com/public/code/html-subscribe.htm
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

Wayne G. O'Shea · Post by **Wayne G. O'Shea** » Sat Feb 18, 2012 10:28 am

I just had the old ACS gascolator apart on customers Pegastol that's running
a 912S. This is the one with the gold metal bowl, and die cast head...same
as what was supplied in MAM FWF kits in previous years. He runs Premium car
gas 99% of the time with the odd 100 LL he gets here when a little short on
fuel to make it to his cottage over Barry's Bay way (Aylen Lake). Absolutely
no swelling of the gasket apparent....but I have seen it before on another
airplane with same unit. Guess it depends on who's "chemical mixture" you
are buying and what additives they have thrown in it (like alcohol). This is
why I always run av gas in a Lycoming. Too many other hose/gasket/tank
sealant things to negate the savings, let alone tolerating the smell when
running car gas.

Wayne

----- Original Message -----
From: "N.Smith" <admin@airnig.co.uk>
To: <rebel-builders@dcsol.com>
Sent: Monday, May 02, 2005 2:56 PM
Subject: RE: gascolator/mo-gas

Hi Terry and all

I already have the Andair gascolator and fuel tank selector. I'm assured
they will both accept all types of fuel (mogas/avgas/jetA)

Nigel
745E

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
Terry Dazey
Sent: 02 May 2005 19:42
To: rebel-builders@dcsol.com
Subject: Re: gascolator/mo-gas

ALan:
If your Gascolator is similar to the one on my Long-EZ (I think that it is
also an ACS), there is also an o-ring at the drain end. You might want to
look at that also.

When the time comes, I think that I am going to use Andair selector and
gascolator as I believe they can use both fuels.

Regards,
Terry Dazey
Rebel 662

Sumner, Washington USA

-----------------------------------------------------------------
List archives located at: https://www.dcsol.com/login
username "rebel" password "builder"
Subscription services located at:
https://www.dcsol.com/public/code/html-subscribe.htm
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

-----------------------------------------------------------------
List archives located at: https://www.dcsol.com/login
username "rebel" password "builder"
Subscription services located at:
https://www.dcsol.com/public/code/html-subscribe.htm
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

Ralph Baker · Post by **Ralph Baker** » Sat Feb 18, 2012 10:28 am

Further to Terrys comment, Andair gascolators use Viton gaskets which
are suitable for 100LL and present formulations of Mogas. This from
"Mr. Andair" at Sun&Fun as I purchased a spare gasket.
Ralph Baker

-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

Alan Hepburn · Post by **Alan Hepburn** » Sat Feb 18, 2012 10:28 am

Terry:

Yes, it did occur to me that the O ring might be be subject to the same
swelling. However, no sign of leakage there, and it isn't sticking either.
The same goes for the drains on the fuel tanks. Seems to me I've seen all
kinds of O rings in automaotive fuel systems, and I can't remember ever
having seen a caveat on O rings, but if anybody knows the full story, I'd
like to hear. I got a piece of 1/16" gasket material from the local auto
parts store, and it seems to work well. It's a dark grey rubber like
material, but not as soft as the original rubber seal on the ACS gascolator.

Al

-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

Walter Klatt · Post by **Walter Klatt** » Sat Feb 18, 2012 10:28 am

I have used mogas with my 0320 most of the time, but did have a
problem early on with a couple of fuel tank drains. They started
to leak after a while, and the little O ring just seemed to eat
away, so that it wouldn't seal anymore. I ended up replacing them
with some small O rings I found at an automotive parts shop, and
no problem since. Funny thing, though, I had two others from the
same batch that I am still using on the bottom of the fuselage
without a problem. So I guess its possible some O rings just
aren't up to the job. Good news, is that it didn't take long to
find that out. My first clue actually was that they would spring
out further, and my doors would catch on them during opening. I
notched them out a bit more to clear, but shortly after they
started to leak, and I knew there was something odd going on. No
problems with my standard homebuilders gascolator.

Walter

-----Original Message-----
From: mike.davis@dcsol.com
[mailto:mike.davis@dcsol.com]On Behalf Of
Alan Hepburn
Sent: Tuesday, May 03, 2005 6:06 PM
To: rebel-builders@dcsol.com
Subject: Re: gascolator/mo-gas

Terry:

Yes, it did occur to me that the O ring might be be
subject to the same
swelling. However, no sign of leakage there, and it
isn't sticking either.
The same goes for the drains on the fuel tanks. Seems
to me I've seen all
kinds of O rings in automaotive fuel systems, and I
can't remember ever
having seen a caveat on O rings, but if anybody knows
the full story, I'd
like to hear. I got a piece of 1/16" gasket material
from the local auto
parts store, and it seems to work well. It's a dark
grey rubber like
material, but not as soft as the original rubber seal
on the ACS gascolator.

Al

-------------------------------------------------------
----------
List archives located at: https://www.dcsol.com/login
username "rebel" password "builder"
Subscription services located at:
https://www.dcsol.com/public/code/html-subscribe.htm
List administrator: mike.davis@dcsol.com
-------------------------------------------------------
----------

-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

Ken · Post by **Ken** » Sat Feb 18, 2012 10:28 am

From memory I believe the common buna-N o-rings are supposed to be good
for gasolene. I've had good luck with them.
However whenever I have a choice, I spend a couple of extra pennys and
buy viton which is supposed to be excellant for gasolene. Spaenaur is a
good source.
Ken

Walter Klatt wrote:

I have used mogas with my 0320 most of the time, but did have a
problem early on with a couple of fuel tank drains. They started
to leak after a while, and the little O ring just seemed to eat
away, so that it wouldn't seal anymore. I ended up replacing them
with some small O rings I found at an automotive parts shop, and
no problem since. Funny thing, though, I had two others from the
same batch that I am still using on the bottom of the fuselage
without a problem. So I guess its possible some O rings just
aren't up to the job. Good news, is that it didn't take long to
find that out. My first clue actually was that they would spring
out further, and my doors would catch on them during opening. I
notched them out a bit more to clear, but shortly after they
started to leak, and I knew there was something odd going on. No
problems with my standard homebuilders gascolator.

Walter

-----Original Message-----
From: mike.davis@dcsol.com
[mailto:mike.davis@dcsol.com]On Behalf Of
Alan Hepburn
Sent: Tuesday, May 03, 2005 6:06 PM
To: rebel-builders@dcsol.com
Subject: Re: gascolator/mo-gas

Terry:

Yes, it did occur to me that the O ring might be be
subject to the same
swelling. However, no sign of leakage there, and it
isn't sticking either.
The same goes for the drains on the fuel tanks. Seems
to me I've seen all
kinds of O rings in automaotive fuel systems, and I
can't remember ever
having seen a caveat on O rings, but if anybody knows
the full story, I'd
like to hear. I got a piece of 1/16" gasket material
from the local auto
parts store, and it seems to work well. It's a dark
grey rubber like
material, but not as soft as the original rubber seal
on the ACS gascolator.

Al

-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

Alan Hepburn · Post by **Alan Hepburn** » Sat Feb 18, 2012 10:28 am

Thanks to both Wlater and Mike. No problems with Proseal and mo-gas I hope?

-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

Wayne G. O'Shea · Post by **Wayne G. O'Shea** » Sat Feb 18, 2012 10:28 am

No problems with Proseal itself...just hope you didn't use any sloshing
compounds! Even without sloshing, you had better still be vigilant for any
alcohol content in that mogas.

Wayne

----- Original Message -----
From: "Alan Hepburn" <ahepburn@renc.igs.net>
To: <rebel-builders@dcsol.com>
Sent: Wednesday, May 04, 2005 8:28 PM
Subject: Re: Gascolator/Mo-gas

Thanks to both Wlater and Mike. No problems with Proseal and mo-gas I

hope?

-----------------------------------------------------------------
List archives located at: https://www.dcsol.com/login
username "rebel" password "builder"
Subscription services located at:
https://www.dcsol.com/public/code/html-subscribe.htm
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

Alan Hepburn · Post by **Alan Hepburn** » Sat Feb 18, 2012 10:31 am

So what's the alcohol going to do, Wayne? I have been assured by Aerosport
Power that the engine and carb. are OK.

Al

-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

Wayne G. O'Shea · Post by **Wayne G. O'Shea** » Sat Feb 18, 2012 10:31 am

If you have any sloshing compound in your tanks it will soften and lift it.
Ticking time bomb that one day may just come lose in a large piece and
smother your finger strainers.

Alcohol will rot your fuel line from gascolator to the carb as well...but
then again car gas does a good job at that as well on some hose types. Not
such an issue in a gravity feed, but when running a pump it has been known
to suck the swelled internal hose shut when it has been softened by alcohol
or car gas.

FWIW, alcohol also doesn't produce as much BTU (read HP) as gasoline will.
Some of you probably remember Ron Newburgs "Alcohol Express" C150
taildragger. It was a DOG when running alcohol.

Wayne

----- Original Message -----
From: "Alan Hepburn" <ahepburn@renc.igs.net>
To: <rebel-builders@dcsol.com>
Sent: Thursday, May 05, 2005 9:19 PM
Subject: Re: Gascolator/Mo-gas

So what's the alcohol going to do, Wayne? I have been assured by

Aerosport

Power that the engine and carb. are OK.

Al

-----------------------------------------------------------------
List archives located at: https://www.dcsol.com/login
username "rebel" password "builder"
Subscription services located at:
https://www.dcsol.com/public/code/html-subscribe.htm
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

Bob Patterson · Post by **Bob Patterson** » Sat Feb 18, 2012 10:31 am

As far as I know, SHELL is the only Canadian supplier that DOES NOT
add alcohol. We always ran Shell BRONZE in the left tank on the O-235,
and 100 LL in the right, and Shell GOLD (higher octane) for the Rotax 912.
Never had a problem, EXCEPT - don't leave it sitting for more than 3 months
TOPS !! After that, just drain it for the lawnmower - IF you can get THAT
to start .... all mogas deteriorates much faster, since about 4 years ago !

And the alcohol does eat aluminum !

......bobp

-------------------------------orig.-------------------------
On Thursday 05 May 2005 09:25 pm, Wayne G. O'Shea wrote:

If you have any sloshing compound in your tanks it will soften and lift it.
Ticking time bomb that one day may just come lose in a large piece and
smother your finger strainers.

Alcohol will rot your fuel line from gascolator to the carb as well...but
then again car gas does a good job at that as well on some hose types. Not
such an issue in a gravity feed, but when running a pump it has been known
to suck the swelled internal hose shut when it has been softened by alcohol
or car gas.

FWIW, alcohol also doesn't produce as much BTU (read HP) as gasoline will.
Some of you probably remember Ron Newburgs "Alcohol Express" C150
taildragger. It was a DOG when running alcohol.

Wayne

----- Original Message -----
From: "Alan Hepburn" <ahepburn@renc.igs.net>
To: <rebel-builders@dcsol.com>
Sent: Thursday, May 05, 2005 9:19 PM
Subject: Re: Gascolator/Mo-gas

So what's the alcohol going to do, Wayne? I have been assured by
Aerosport
Power that the engine and carb. are OK.

Al

-----------------------------------------------------------------
List archives located at: https://www.dcsol.com/login
username "rebel" password "builder"
Subscription services located at:
https://www.dcsol.com/public/code/html-subscribe.htm
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

-----------------------------------------------------------------
List archives located at: https://www.dcsol.com/login
username "rebel" password "builder"
Subscription services located at:
https://www.dcsol.com/public/code/html-subscribe.htm
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------