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Small fuel leak at fuel filter fitting

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Old 09-09-2012, 05:28 PM
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CP64365
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Default Small fuel leak at fuel filter fitting

I replaced the fuel filter on my 64 L76 (365HP). After reconnecting the fitting to the new filter and connecting the hose from the filter to the carb, I pumped the gas pedal to see if gas was injecting into the carb. It did, so I then started the car. I then noticed a slight leak from the 90 degree fitting on the outlet side of the gas filter (GF-90). I was able to make on more revolution around to tighten the fitting, but it still leaked a small amount. With two 90 degree fittings going into the filter, how can you make sure the fittings are tight and still have the 90 degree fitting for the rubber hose from the filter to the carb point in the direction of the carb? If can tighten this fitting anymore, it will position the outlet tube for the rubber hose away from the carb. Do I need to resort to using a teflon paste to help seal the fitting? Thanks.

Dave
Old 09-09-2012, 05:43 PM
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Dave64
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Depending on the condition of your fittings, a bit of Teflon tape may help.
Old 09-09-2012, 05:52 PM
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MikeM
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Nothing wrong with using the tape that I know of. You can also try backing the 90* fittings off a half turn and then re-tighten, they may seal then.
Old 09-09-2012, 06:22 PM
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65 vette dude
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If that 90 degree fitting is chrome plated........that is your problem. Been there....done that. I went to NAPA, and got a fitting without the chrome, and it solved the problem.
Old 09-09-2012, 11:18 PM
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wmf62
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there is also an aircraft item called a 'flare saver' that might work. i use them on my fuel lines that leak a bit.

http://www.gen-aircraft-hardware.com...agename=flrsav

Bill
Old 09-10-2012, 08:24 AM
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I use just a tad of teflon tape quite often...just be sure not to wrap it so far forward that any of it blocks the fuel passage.
Old 09-10-2012, 09:22 AM
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Originally Posted by 65 vette dude
If that 90 degree fitting is chrome plated........that is your problem. Been there....done that. I went to NAPA, and got a fitting without the chrome, and it solved the problem.
That's probably why the OEM GM fuel fitting threads and the flare end of the tube (that I know of) were devoid of chrome.

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