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Old 04-28-2019, 09:34pm   #1
Geobsum
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Default Oil filter adapter seal installation

I have a 1987 vet that started leaking oil above the oil filter. Iím 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 canít find a socket to fit and Iím wondering if it isnít a nut but a pressed part of the adapter and whether the entire adapter unscrews after unhooking the oil lines. All input welcome.Name:  IMG_0445.JPG
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Old 04-28-2019, 09:48pm   #2
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Maybe this will help get you going - looks fairly straightforward:


Good luck -

Dave
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Old 04-29-2019, 07:34am   #3
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Thx but Iíve 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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Old 04-29-2019, 11:33pm   #4
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Iíve Googled things a bit and agree that the instructions are elusive without a shop manual diagram.
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Old 05-01-2019, 12:59pm   #5
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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!Name:  IMG_0491.JPG
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Old 05-01-2019, 01:02pm   #6
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Three photos showing socket befor and after
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Old 05-01-2019, 01:03pm   #7
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Quote:
Originally Posted by Geobsum View Post
Three photos showing socket befor and after


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Old 05-01-2019, 10:59pm   #8
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Sounds like you brilliantly figured it out. Impressive. Iíve learned from it. Not to own an Ď87! Seriously. How often should a 5.7L oil filter adapter enable or directly cause a leak?
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Old 05-02-2019, 05:38am   #9
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Once in 32 years!
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Old 05-02-2019, 11:23pm   #10
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No issues with my C3. Yet.
Now I have to go knock on wood.
But, I donít even see them offered in the two C3 parts catalogs I get, so Iím hoping that is a good omen.
Good job getting to the bottom of it.
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Old 06-04-2019, 10:05am   #11
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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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Old 07-25-2019, 07:11am   #12
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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 wouldnít move around. Then used a Dremel high speed grinder to carefully narrow gasket to fit! Should work.Name:  IMG_0685.JPG
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