Chain cover leak

[thsupernge]

So I think I am down to my last oil leak and it looks like it is coming from the PS chain cover. Can that gasket be R&R'd without the motor out? Any advice?
Thanks!

[proporsche]

lets see the picture 1st
Ivan

[mikedsilva]

Originally Posted by thsupernge

So I think I am down to my last oil leak and it looks like it is coming from the PS chain cover. Can that gasket be R&R'd without the motor out? Any advice?
Thanks!

Sure can.
Don't even have to drain oil. (i think)

Jack it up at rear and put on stands.
remove muffler.
remove rear engine tin
Should have clear access.
Not much oil , if any will drain as it all goes to front of engine.

It's unusual for these to leak tho?

[shoooo32]

The chain cover is the low point but the oring/gasket sealing the chain box to the cam tower is usually the source of the leak. Both can be serviced in the car, although it's a little easier if you remove the rear bumper.

[thsupernge]

Cool guys, let me get a Pic this morning and see what we see. Thanks in advance!

[Funracer]

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[thsupernge]

[walt]

Check the leak is not coming from your tensioner connection or possibly the oil pressure sender directly above. These are quite common.

[thsupernge]

Ok will do! The pressure sender is dry, I always check that.

[proporsche]

at this pont consider yourself a little lucky/It is not your camshaft cover gasket and o ring(no need to check the cam timing).So just remove the muffler and sheet metal plus Ac bracket and replace both sides gaskets.Do not use any silicone on them only if you want tinny film of Curil T...No need to drop the engine for this at all ,not even partly

Ivan

[walt]

Be sure to use all new hardware.

[thsupernge]

Originally Posted by proporsche

at this pont consider yourself a little lucky/It is not your camshaft cover gasket and o ring(no need to check the cam timing).So just remove the muffler and sheet metal plus Ac bracket and replace both sides gaskets.Do not use any silicone on them only if you want tinny film of Curil T...No need to drop the engine for this at all ,not even partly

Ivan

By "both sides gaskets," are you saying I should replace the gaskets on both covers?

[proporsche]

Originally Posted by thsupernge

By "both sides gaskets," are you saying I should replace the gaskets on both covers?

yup, while you are there it will be easy job.Gasket have the same age....get a set of chain housing gasket ( i hope it still comes a set nuts gasket and alu.washers)
Also get a muffler gasket and replace it ,it might be old and thin...When i do this job i always use stainless steel nuts and bolts as a replacement for the old hardware-for the muffler it is....

Ivan
oh ya only drain the engine case oil-save it and put it back

[strictly]

If you didn't the first time br sure to check your covers are flat then use a torque wrench. Maybe the covers are uneven or not torqued evenly.

Ignore my next advice as it differs to the above...typically I would use a very thin smear of 574 on the gaskets. 574 has never let me down on any oil application although I would not use it everywhere

[Showdown]

Check the flatness of the gasket surface on the cover- they might be warped. If only slightly, you ca sand (or fly cut if you have a mill) them flat… also a little curil-t does wonders.

[proporsche]

Originally Posted by Showdown

Check the flatness of the gasket surface on the cover- they might be warped. If only slightly, you ca sand (or fly cut if you have a mill) them flat… also a little curil-t does wonders.

this is interesting ....i have never had problem with chain housing cover beeing warped-since i work on these beasts, that is from 1986....

Ivan