Fuel Filter connections
Thread Starter
Safety Car
Joined: Mar 2005
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From: Fredonia WI
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Fuel Filter connections
1 - should there be an o-ring in the fuel line fittings connecting to the fuel filter?
2 - should you use some sealant on the fuel line threads? (teflon tape? paste?)
TIA,
Gary
2 - should you use some sealant on the fuel line threads? (teflon tape? paste?)
TIA,
Gary
Safety Car
Joined: Nov 2004
Posts: 4,991
Likes: 5
From: The Pines South Jersey
1 - should there be an o-ring in the fuel line fittings connecting to the fuel filter?if your 85 is same as an 86, yes it's a saginaw fitting
2 - should you use some sealant on the fuel line threads? (teflon tape? paste?)not needed with the o ring
2 - should you use some sealant on the fuel line threads? (teflon tape? paste?)not needed with the o ring
Safety Car
Joined: Nov 2004
Posts: 4,991
Likes: 5
From: The Pines South Jersey
Race Director
Joined: Jun 2004
Posts: 13,961
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From: WI
This link shows what the Saginaw fittings look like:
http://store.summitracing.com/partde...5&autoview=sku
Remember to pop the gas cap so there isn't extra pressure pushing the gas out of the line. It will gravity drain some but it wasn't much if your quick to change the filter.
http://store.summitracing.com/partde...5&autoview=sku
Remember to pop the gas cap so there isn't extra pressure pushing the gas out of the line. It will gravity drain some but it wasn't much if your quick to change the filter.
Thread Starter
Safety Car
Joined: Mar 2005
Posts: 4,471
Likes: 1,224
From: Fredonia WI
2025 Corvette of the Year Finalist - Unmodified
2024 C7 of the Year Winner - Unmodified
2023 C4 of the Year Finalist- Modified
2020 C4 of the Year Finalist - Modified
2019 C4 of Year Finalist (performance mods)
2018 C4 of Year Finalist
Thanks all. I wish I would have planned on getting these o-rings early on, rather than having to run to NAPA and pay $7 
at the last minute.
Andrew, the system was de-pressurized and just leaked a little (from the line above the engine). Wouldn't it be better to leave the cap on, so there's no additional air pressure pushing the fuel out of the tank?
Gary
at the last minute.Gary
Race Director
Joined: Jun 2004
Posts: 13,961
Likes: 707
From: WI
Mine always has a lot of pressure from sitting around in the shop. I open the cap letting out a big whoosh before doing fuel work. I don't have to depressurize the rail since mine still leaks down.
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