Leaking fuel pump
Thread Starter
Burning Brakes
Joined: Aug 2006
Posts: 793
Likes: 10
From: Grafton MA
Leaking fuel pump
I replaced the fuel line which runs from the pump to carb on an LT-1, and after putting things back together there is a slow leak from the fuel pump. I have the fuel line threaded tightly into the pump but I think that's where it's leak from. The threads on both sides look okay...don't think anything is stripped. Any suggestions?
Last edited by pwsusi; Jun 9, 2018 at 08:49 PM.
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From: New Or-leens Loo-z-anna
Also......A small flake of crud/trash in the seating area where the flared end of the fuel line fits into the pump will cause a small leak no matter how tight you get the nut.
Like Bob said....be sure fuel isn't seeping out of the small HOLE on the side of the pump.
Like Bob said....be sure fuel isn't seeping out of the small HOLE on the side of the pump.
Thread Starter
Burning Brakes
Joined: Aug 2006
Posts: 793
Likes: 10
From: Grafton MA
Thanks for the input guys. I confirmed it's not leaking from the small holes on the side. I ended up finding it's definitely leaking from the threads. The new fuel line to carb has brass fittings and apparently i needed some thread sealant which seems to have done the trick. Perhaps in taking it off and back on i lined up the flared end better too (guessing).
