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| C4 Open Discussion General and technical C4 Corvette discussion - ownership, maintenance, repairs, modifications, tuning |
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04-28-2019, 8:34pm
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Vette Barn nOOb
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Oil filter adapter seal installation
I have a 1987 vet that started leaking oil above the oil filter. I’m fairly certain it is a bad seal above the oil filter adapter and I found a replacement on line but am perplexed on how to remove the adapter. See photo attached. I was told that the nut unscrews but I can’t find a socket to fit and I’m wondering if it isn’t a nut but a pressed part of the adapter and whether the entire adapter unscrews after unhooking the oil lines. All input welcome.
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04-28-2019, 8:48pm
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Vette Barn Crew
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Maybe this will help get you going - looks fairly straightforward:
Good luck - Dave |
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04-29-2019, 6:34am
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#3 | ||||||
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Vette Barn nOOb
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Thx but I’ve seen this video before and it is an entirely different adapter with separate bolts!
I need to know how to remove mine since the nut(sides are bigger than any sockets that I can find) which makes me believe it is not a nut! If so how do I remove the adapter? Will a strap wrench work to turn the adapter once the oil lines are removed? Is there a special tool? |
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04-29-2019, 10:33pm
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Vette Barn Crew
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I’ve Googled things a bit and agree that the instructions are elusive without a shop manual diagram.
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05-01-2019, 11:59am
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#5 | ||||||
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Vette Barn nOOb
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Finally was able to remove the adapter! Had to machine a 1 1/8 in socket flat to remove the slants on each face so I could grab the thin nut and crank it off! It comes apart and I attached photos so others can learn!
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05-01-2019, 12:02pm
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#6 | ||||||
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Vette Barn nOOb
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Three photos showing socket befor and after
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05-01-2019, 12:03pm
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#7 | |||||||
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Vette Barn nOOb
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Quote:
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05-01-2019, 9:59pm
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#8 | ||||||
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Vette Barn Crew
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Sounds like you brilliantly figured it out. Impressive. I’ve learned from it. Not to own an ‘87! Seriously. How often should a 5.7L oil filter adapter enable or directly cause a leak?
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05-02-2019, 4:38am
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#9 | ||||||
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Vette Barn nOOb
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Once in 32 years!
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05-02-2019, 10:23pm
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#10 | ||||||
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Vette Barn Crew
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No issues with my C3. Yet.
Now I have to go knock on wood. But, I don’t even see them offered in the two C3 parts catalogs I get, so I’m hoping that is a good omen. Good job getting to the bottom of it. |
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06-04-2019, 9:05am
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#11 | ||||||
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Vette Barn nOOb
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Now I need a new seal! Hunted for weeks with no luck! Seal is 3 3/8 in outside diameter! Anyone know where I can find one?
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07-25-2019, 6:11am
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#12 | ||||||
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Vette Barn nOOb
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Took a regular oil filter and removed rubber gasket. Was a llittle too wide to fit oil cooler so I placed it on a plastic cup so it wouldn’t move around. Then used a Dremel high speed grinder to carefully narrow gasket to fit! Should work.
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