Today's Message Index:
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1. 08:42 AM - Re: fuel access plate sealing (Merems)
2. 10:02 PM - Re: Aux Fuel Question (GMC)
Message 1
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| Subject: | Re: fuel access plate sealing |
Don,
A while back I spoke with Vans about the cork gasket and Proseal. There explanation
was that the gap created by the cork will allow a tool to be wedged in the
joint when prying the panel off the tank (if needed). If you coat the mating
surfaces of the cork, the perimeter of the joint, and under the screw heads
with Proseal then you should be OK.
Proseal is a very good flexible adhesive. Once two parts are properly cleaned and
sealed with Proseal, it is very difficult to separate them. I recently did
a repair on both fuel tanks on an RV-4 (not mine). We had to remove the access
plates which only had Proseal on them. They were extremely difficult to remove.
The cork would have made a difficult job much easier.
Paul
----- Original Message -----
From: Don Hall
To: rv7-list@matronics.com
Sent: Friday, October 28, 2005 9:32 PM
Subject: RV7-List: fuel access plate sealing
I'm about to the point of not being able to avoid pro-seal any longer.
I have a question. The directions do not say that it is mandatory to seal around
the cork gasket on the access plate, but that some builders choose to. I'm
thinking of choosing NOT to. I figure I can always change my mind later, like
at least waiting till after fully testing the tank... Once the plane is built
and flying, is opening the access plate ever done for anything but repair?
IOW, not ever for inspection? How many years might a cork gasket be expected
to last? I know automobiles use flimsy cork gaskets for all sorts of tanks
and they work well for a long time assuming the bolts are all evenly tightened.
Also, the directions for sealing the screws on the access plate just say to put
some sealant on the threads. What's the point of getting the platenut all gunked
with proseal? Seems the only think you're trying to seal at that point
is the circumference of the screw hole. I'm assuming you could just glob some
proseal around the last few threads, near the screw head? I wouldn't see the
point of putting seal on the threads that actually go into the platenut.
Thoughts?
******************************************
Don Hall
N517DG (registered)
rv7 wings
http:\\donka.net\rv7project.html
******************************************
Message 2
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| Subject: | Re: Aux Fuel Question |
<018d01c5dc9f$b7fb55e0$6400a8c0@fastburner>
--> RV7-List message posted by: GMC <gmcnutt@shaw.ca>
A friend has installed nice tip tanks in a RV-7A he is building, however
he is having second thoughts about the planned gravity fuel transfer
method to the main tanks and wonders if he needs to install a transfer pump.
He would like feedback from anyone who has auxiliary wingtip tanks using
a gravity transfer (3/8 lines) to the mains. He is running the fuel from
tip tanks to cockpit valve then back to main tanks.
Thanks
George in Langley BC
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