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Timing chain cover+gasket replacement for chevy lumina 95 3.1l v6 ls sedan
1995 Chevrolet Lumina

Timing Chain Cover+Gasket Replacement for Chevy Lumina 95 3.1L V6 LS sedan

(1995 Chevrolet Lumina)
To replace the timing chain cover+gasket for my Lumina 95 3.1L V6, a popular repair manual HAYNES mentioned that the timing chain cover can be removed with the oil pan in place, BUT the oil pan must be removed for a GOOD INSTALLATION to seal against the bottom of the timing cover.
Could anyone with experience on Chevy engines, please explain to me if the oil pan must be really removed in order to install the timing cover+gasket and seal well against oil leakage at the bottom of the timing cover? and WHY it help stop oil leakage at the bottom?

Thank you very much.
Tags: chevrolet, lumina
1 answer & 2 comments
Popular Answer
on August 08, 2019

Im retired now but I didn’t remove the oil pan - I always used RTV gasket material - clean everything up and add the gasket maker to lower timing cover where it mates to the oil pan - nary a problem....

However it should be noted that I was in the business for a VERY LONG TIME and that certainly makes a difference as experience is invaluable.



Good luck!
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on August 08, 2019
Thank Pushrod! your experience is definitely invaluable.

The lower timing cover also mates to the side of engine block, not only the top of the oil pan, I believe so, Should the gasket maker be applied where it mates to the side of engine block? also the timing cover gasket ( upside down "U" shape) does not cover that area! which is really strange, why?

Please let me know, thank you again.
on August 08, 2019

Apply gasket maker liberally to all areas needed..
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on August 08, 2019

Im retired now but I didn’t remove the oil pan - I always used RTV gasket material - clean everything up and add the gasket maker to lower timing cover where it mates to the oil pan - nary a problem....

However it should be noted that I was in the business for a VERY LONG TIME and that certainly makes a difference as experience is invaluable.



Good luck!
Sign in to reply
on August 08, 2019
Thank Pushrod! your experience is definitely invaluable.

The lower timing cover also mates to the side of engine block, not only the top of the oil pan, I believe so, Should the gasket maker be applied where it mates to the side of engine block? also the timing cover gasket ( upside down "U" shape) does not cover that area! which is really strange, why?

Please let me know, thank you again.
on August 08, 2019

Apply gasket maker liberally to all areas needed..

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