Valve Cover Gasket... rocker arm colors... reading the oil gunk?

[Mattmill91]

 

 

 

Any ideas on why some are dirtier then others...

 

First time open since factory I would think... changed the gasket.. would any of this benefit cleaning? Or would that make things worse?

 

Def some sludge up there.... but I bet there is a lot worse out their.

[Mattmill91]

I just did the easy side this evening. Luckily that was the only side leaking like crazy. It had a big break in the gasket witch was hard as a rock. Lucky I have had a new sitting on the shelf..

[Slartibartfast]

That doesn't look bad at all. Mine had that kind of color fade across the rockers too, I think it's just because of the PCV design. And yeah, my old gaskets were brittle junk too!

[onespiritbrain]

Mostly it follows your oil change interval and type of oil.

This is 7000mile oil changes with havoline and castrol dyno oil:


This is an unknown interval and oil type:


This is the same cylinder head at 3000-5000mile oil changes with top tier synthetic oil:


I agree with Slart, that discoloration on your rockers is probably from the PCV system.


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