2.5L valve cover leak

[Glenn Moyer]

I think I've tried every gasket and or sealer on my valve cover and it always end up leaking after a few weeks. I don't have any blow by going into the air box and the breathers are all open. Has anybody had better luck with any perticular gasket or silicone gasket maker? It's an 89 MJ, 2.5 plastic valve cover. Doesn't seam to be warped or cracked. Had 180,000 on my last 87 Mj and the valve cover was the only place it ever leaked oil from.

Thanks Glenn

[Jeep Driver]

Permatex Ultra Black on both sides of cork........and clean clean clean.

[mjtjnj]

I use a little gasket adhesive to clue the RUBBER gasket to the valve cover, then bolt it down without any RTV. Works great

:cheers:

[lexluthier72]

Ditch the plastic valve cover and get one off a 91 and up Wrangler, and the proper rubber gasket....no more leaks. Its not the gasket leaking, its the cover warping.

[Jeep Driver]

Ditch the plastic valve cover and get one off a 91 and up Wrangler, and the proper rubber gasket....no more leaks. Its not the gasket leaking, its the cover warping.

 

 

Hard to find......been looking.

 

 

 

The cover is warping that why I use a liberal amount of UB the snug the bolts down just until the UB begins to ooze.

[Cheech]

Permatex "Right Stuff" on mine instead of the cork or rubber gasket. No leaks.

[Glenn Moyer]

Thanks for all the advice guys! Cheech do you have the plastic valve cover ?

Glenn