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Old 04-13-2010, 10:58 PM
KGJC616's Avatar
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1989 Chevrolet C/K 2500
Join Date: Apr 2010
Location: Osceola, Indiana
Posts: 54
Unhappy Oil filter Adapter is Leaking

ok just last week i droped my oil pan to stop it from leaking near the back of the pan. i got it back up the other day and i put oil in the engine and when i went to start it i noticed that my oil filter adapter is leaking. its leaking on the top side of the adapter that meets the block.

I have a 1989 Chevy Silverado C2500 350 5.7L

when i droped the oil pan i droped the oil filter adapter and noticed there was a gasket there so i replaced it with a new gasket. it looked like it was a paper one so im not sure if that is the problem or not but any help would be greatly appreciated. thanks
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Old 04-14-2010, 03:22 AM
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Add a little silicon to the gasket and you should be good, make sure the surfaces are clean.

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Old 04-16-2010, 12:24 PM
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1989 Chevrolet C/K 2500
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Location: Osceola, Indiana
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thanks for the info i put some RTV on it ill post later if it worked or not.
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Old 07-10-2012, 02:15 PM
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i replaced oil filter adapter gasket , a few days ago but it dtarted leaking again
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Old 07-10-2012, 04:03 PM
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Originally Posted by victoria galindo View Post
i replaced oil filter adapter gasket , a few days ago but it started leaking again
NAPA sells a kit for all the O-rings & gaskets that are associated with the oil filter adapter. Assuming you are talking about the adapter that provides the outlets for the oil cooler. there is a large, thick O-ring that goes up inside that adapter.
Currently, I am having issues with the oil filter gasket blowing out. Does anyone know what is causing this? After each replacement, I can run the truck as long as I want but after it cools and I run it the second time, the oil filter seal starts leaking and I have an oil cooler too. I have a high flow oil pump in a remanufactured block I purchased from JEGS. What could be the problem? Someone said a valve could be sticking? What does that mean. Are they talking about a intake or exhaust valve? I have rebuilt steel heads on the engine as well. it has about 1000 miles on it now. Please offer some suggestions!
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Old 07-10-2012, 04:03 PM

57, 57l, adapter, adaptor, block, chevrolet, chevy, cooler, filter, gasket, leak, leaking, liter, oil, uplander

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