Fuel Filter Replace
Race Director
Joined: Feb 2007
Posts: 15,408
Likes: 8,842
From: northern california
C2 of Year Finalist (track prepared) 2019
If you absolutely must use a sealant, use Teflon paste instead of tape. The tape can shred into fine threads which are capable of preventing the needle and seat from sealing. If they get into the jetting or other passages, other unpleasant results are possible.
That said, if your fittings are inverted flare or compression, do not use any sealant at all.
That said, if your fittings are inverted flare or compression, do not use any sealant at all.
Race Director
Joined: May 2000
Posts: 12,712
Likes: 2,269
The OE GF-90 fuel filter has pipe threads on each end and there is a a pipe thread to flare adapter at each end. Use a fuel resistant sealer (sparingly) on the filter to adapter NPT fittings, but not on the flair fittings. Be sure to keep the two adapters in the original (input side/output side) positions. This will ensure that the original mating flare surfaces are maintained, and they should easily seal.
If joining flare fittings where either the male, female, or both sides are new tighten and loosen the B-nuts at least three times before final tightening, and this should give a good seal.
And ALWAYS use a "five side" tubing wrench when working with flare fitting B-nuts.
Duke
If joining flare fittings where either the male, female, or both sides are new tighten and loosen the B-nuts at least three times before final tightening, and this should give a good seal.
And ALWAYS use a "five side" tubing wrench when working with flare fitting B-nuts.
Duke
Last edited by SWCDuke; Jun 27, 2022 at 08:50 PM.
Thread Starter
Racer
Joined: Nov 2010
Posts: 397
Likes: 33
From: Campton Hills, Illinois
Thanks
I sprayed the connections with Blaster aerosol penetrator product. Let it set for about 40 minutes and tried to loosen. They would not budge and since i was using an open end wrench I didnt want to take any chances. I ordered a set of the 5 sided wrenches. Thanks you for the advise.
Racer
Joined: Sep 2020
Posts: 388
Likes: 135
From: New Berlin
I sprayed the connections with Blaster aerosol penetrator product. Let it set for about 40 minutes and tried to loosen. They would not budge and since i was using an open end wrench I didnt want to take any chances. I ordered a set of the 5 sided wrenches. Thanks you for the advise.
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Race Director
Joined: Feb 2007
Posts: 15,408
Likes: 8,842
From: northern california
C2 of Year Finalist (track prepared) 2019
If you absolutely must use a sealant, use Teflon paste instead of tape. The tape can shred into fine threads which are capable of preventing the needle and seat from sealing. If they get into the jetting or other passages, other unpleasant results are possible.
That said, if your fittings are inverted flare or compression, do not use any sealant at all.
That said, if your fittings are inverted flare or compression, do not use any sealant at all.
Do you really want stuff like this circulating in your fuel system?
