1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Need help with fuel leak

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Old Jun 25, 2005 | 08:16 PM
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Need help with fuel leak

Ok guys, Ive done everything I can think of, but fuel keeps coming out the air vent sylenoid. Ive replaced the fuel check valve with a male-male conector to make it free flowing, put in a fuel pressure regulator, replaced the gasket a couple times and nothing is helping. Should I replace the sylenoid? Also if I blow into the return line...should I be able to blow through it???
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Old Jun 25, 2005 | 10:55 PM
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Bump....someones gotta know the answer
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Old Jun 26, 2005 | 01:33 PM
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Old Jun 26, 2005 | 01:42 PM
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From: LOS ANGELES
Replace the solenoid. I had a fuel leak and the solenoid and regulator was the cuprit. I also replaced the FPD while I was at it.
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Old Jun 26, 2005 | 01:44 PM
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From: Tx
where did you pick up the sylenoid?
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Old Jun 26, 2005 | 01:52 PM
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Dealer.
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Old Jun 26, 2005 | 02:59 PM
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Ok....thats where I was figuring i would have to pick it up. I might just pick up another carb from a junk yard and rebuild it
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Old Jun 26, 2005 | 03:05 PM
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You two are talking about two different things. Web777 is talking about a GSL-SE (fuel injected). Sometimes when the FPR goes out on them, the fuel will run into the FPR solenoid because of a ruptured diaphram. Your issue seems to be something else. Have you checked the fuel pressure? You said that you couldn't blow through the return line. Maybe the return line is plugged causing high fuel pressure. If fuel pressure is okay, then you would probably be best off getting another carb and go from there. Good luck.

Kent
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Old Jun 26, 2005 | 03:19 PM
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Im running a fuel pressure regulator. Are you supposed to be able to blow through the return line???
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Old Jun 26, 2005 | 03:31 PM
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His FPR is different than yours. I think he wasn't understanding where your leak was coming from. What kind of FPR do you have? Is it adjustable? Do you know what it is set at? You should be able to blow though the return line. See if you can borrow a fuel pressure tester (or buy one for about $20) to see what your fuel pressure is actually at. If the return is blocked, you will have all sorts of problems over filling the carb, flooding, etc. This is probably why fuel is being pushed out your air vent solenoid.
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Old Jun 26, 2005 | 05:47 PM
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ok....thats what i needed to hear. I bought my FPR from checkers....forget what brand...but ive had it running at like 1psi. Could that also be why she is running so rich? I cannot find the mixture adjustment screw, but found the air adjustment.
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