It might be OK to use the Shop Vac for pressure, but using it to
create vacuum - reduced pressure - should ONLY be done on a
tank that has been drained and well vented for some time !
Best to do this for testing, before filling with fuel, when building.
Just heard that some fast glass guys used one to suck on a partial tank -
and got a quick trip to the coast !! ;-( Ouch ! Big jet !!
--
......bobp
bobp@prosumers.ca
http://www.amway.ca/BobPatterson
http://bpatterson.qhealthbeauty.com
http://apatterson2.ordermygift.com
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On March 24, 2010 10:40:51 pm David A. Ricker wrote:
About Bob's suggestion of listening for the leak using pressure. If you
can draw low pressure on the tank while there's fuel in it and listen
you might hear air bubbling into the leak through the fuel. Might even
be able to close in on the location by moving the wing around too.
Probably goes without saying a hand pump should be used vs. anything
powered, maybe something like the hand vacuum pumps you can get at
Princess Auto.
Dave
Elite 583
Alan Hepburn wrote:After 4 years, the left tank on my Elite has developed a leak. Fuel is
gradually dripping out along the entire trailing edge of the wing, so it
is not clear where the leak is coming from. Of course, visual access
there is very limited (one aileron hinge inspection plate). I have
tried a snake camera but results are not very good. However, the
outboard rib looks leak free, so I suspect somewhere on one of the rear
tank bulkheads.
I have been advised against sloshing, as it tends to come loose. The fix
would appear to be to cut a hole in the top of the tank, fix the leak,
then Proseal a patch over the hole, but I'd really like to identify the
leak location before I do that. I'm considering drilling out the lower
trailing edge rivets so I can get a better look at the back of the
tank. And advice from someone who has been there ahead of me would be
appreciated.
Al Hepburn
Elite 587
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