What should I use to seal a fuel leak at the fuel pump fittings?
10-07-07, 12:15 PM
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What should I use to seal a fuel leak at the fuel pump fittings?
Should I use a copper washer, a regular washer, or pipe sealant?
I've installed a new fuel pump onto my car, Bosch, and there is a small leak at one of the fitting areas. This fuel pump has a brass double-male fitting, with a hex head in the middle for tightening, that goes into the main neck. This is to allow putting on the banjo fuel line and fuel pulsator dampner. This is how the setup currently is (from left to right):
Fuel pump neck, fuel pump double-male fitting, banjo fuel line, supplied copper ring washer (thing has 4 tabs on the inner ring, I guess to keep it centered on the fitting), fuel pulsator dampner.
The leak is happening between double-male fitting and banjo fuel line. I've tried tightening everything down, still doesn't fix the problem. I stuck in the stock ring washer (not the new one, the one that came off the stock pump area) into that area, tightened everything, still nothing. I guess it's because it provides a gap for fuel to leak out. So, what should I use? I'm kind of leaning towards a copper washer. That's what's used on my fuel filter on both ends of the banjo fuel lines.
This is the fuel pump I purchased, if the link works:
http://www.partsamerica.com/ProductD...ype=52&PTSet=A
I've installed a new fuel pump onto my car, Bosch, and there is a small leak at one of the fitting areas. This fuel pump has a brass double-male fitting, with a hex head in the middle for tightening, that goes into the main neck. This is to allow putting on the banjo fuel line and fuel pulsator dampner. This is how the setup currently is (from left to right):
Fuel pump neck, fuel pump double-male fitting, banjo fuel line, supplied copper ring washer (thing has 4 tabs on the inner ring, I guess to keep it centered on the fitting), fuel pulsator dampner.
The leak is happening between double-male fitting and banjo fuel line. I've tried tightening everything down, still doesn't fix the problem. I stuck in the stock ring washer (not the new one, the one that came off the stock pump area) into that area, tightened everything, still nothing. I guess it's because it provides a gap for fuel to leak out. So, what should I use? I'm kind of leaning towards a copper washer. That's what's used on my fuel filter on both ends of the banjo fuel lines.
This is the fuel pump I purchased, if the link works:
http://www.partsamerica.com/ProductD...ype=52&PTSet=A
Last edited by 85 FB; 10-07-07 at 12:25 PM.
10-07-07, 04:17 PM
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Thanks, Trochoid. Awhile after I posted the original thread, I went out copper washer searching. I'm surprised that not a lot of places carry them. Home Depot's plumbing section didn't, Pep Boys, and even Auto Zone didn't have them. However, I did find one auto parts store that did carry some. Found a copper washer, stuck that bad boy in, and voila. Fixed the leak. I am so pleased.
10-07-07, 04:23 PM
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Wow. A lot of crud in that little screen.
Well, I'm glad that I bought a new fuel filter and fuel pump. Because, if I hadn't removed that fuel pump, I wouldn't have known that there is a very tiny cone screen inside the main fuel hose leading into the pump. I removed that thing and realized what it was. I also realized that 7/8 of it was coated in gunk. While I don't know how long that's been in there, and judging from how un-touched the fuel pump and nuts/bolts were, I'm guessing that has been in there a long, long time. I hope that's not 21 years of build-up.
Anyways, I cleaned that little thing out and stuck it back in. I don't know if it helps the engine better in fuel delivery, but I'd like to think so. Especially after all that gunk that I removed. I don't know if that little orifice screen is in the 12A setups.
Anyways, I cleaned that little thing out and stuck it back in. I don't know if it helps the engine better in fuel delivery, but I'd like to think so. Especially after all that gunk that I removed. I don't know if that little orifice screen is in the 12A setups.
10-07-07, 08:43 PM
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You're lucky that your fuel leak was fixed with a new washer. Damn gas leaks thru everything. I've had to replace the steel fuel tubes (not on a 7....yet) in the past to solve the problem.
