Today's Message Index:
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1. 02:57 PM - 914 carb leak (Paul McAllister)
2. 03:39 PM - Re: 914 carb leak (Roger Lee)
3. 04:21 PM - Re: 914 carb leak (Kevin Klinefelter)
4. 06:30 PM - Re: 914 carb leak (Roger Lee)
Message 1
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Hi all,
I am traveling with my Euopa 914 and I am having problems. I had a leak from the
fuel bowl so I removed it last week to inspect it. I checked the bowl surface
a glass sheet for distortion and it seemed okay so I re installed it with
a small amount of Loctite 515. I test flew it and all seemed good. I flew 3
hours to Lincoln, Nebraska with no issues. I did use full boost to take off out
of Lincoln and I could smell fuel again. I found that at 10,500' I had
to back the MP down to 24" to stop the smell so I am guessing that the bowl leaks
at anything above ambient pressure.
I intend to remove the bowl on Monday to inspect and the question I have to the
group is how tight am I supposed to do the nut on the bottom of the fuel bowl.
My concern is that I might distort it if I do it too tight. My other question
is, it it acceptable practice to use a fuel resistant gasket cement?
Thank, Paul
Message 2
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| Subject: | Re: 914 carb leak |
Hi Paul,
Have you installed a new gasket? If not I would do that first. I see lots of leaky
carb bowl gaskets and usually a new one takes care of the issue.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Repair Center - Heavy Maint. Rated
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=353071#353071
Message 3
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| Subject: | Re: 914 carb leak |
Hi Paul,
As Roger said, try a new gasket.Cork gaskets from Bing are supposedly
better than the paper ones from Rotax. And it is indeed possible to
over-torque the bolt on the bottom of the bowl. Over- torque can
distort the bowl causing the brass posts that the floats slide up and
down on to splay outward. Not good.
I can't remember what the proper torque is, but I remember I needed to
use a crow-foot on the torque wrench.
On 9/23/11, Paul McAllister <l_luv2_fly@yahoo.com> wrote:
> Hi all,
>
> I am traveling with my Euopa 914 and I am having problems. I had a leak
> from the fuel bowl so I removed it last week to inspect it. I checked the
> bowl surface a glass sheet for distortion and it seemed okay so I re
> installed it with a small amount of Loctite 515. I test flew it and all
> seemed good. I flew 3 hours to Lincoln, Nebraska with no issues. I did use
> full boost to take off out of Lincoln and I could smell fuel again. I found
> that at 10,500' I had to back the MP down to 24" to stop the smell so I
> am guessing that the bowl leaks at anything above ambient pressure.
>
> I intend to remove the bowl on Monday to inspect and the question I have to
> the group is how tight am I supposed to do the nut on the bottom of the fuel
> bowl. My concern is that I might distort it if I do it too tight. My other
> question is, it it acceptable practice to use a fuel resistant gasket
> cement?
>
> Thank, Paul
Message 4
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| Subject: | Re: 914 carb leak |
The torque for the bowl screw is 48 in/lbs. It's in the parts manual.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Repair Center - Heavy Maint. Rated
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=353085#353085
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