Milky stuff in valve cover

[gaminoree]

Anyone see anything like this, not sure if it is a blown head gasket, or just condensation. Real milky stuff in the upper valve cover only......Anyone?????

 

[NC87GN]

condensation mixed with oil. Seen it several times.

Mike Banas
87GN

 

[Buzzard]

Sounds like headgasket to me. I would do a compression test to check it out.

 

[Turbo1dr]

Check to see if the PCV valve is working good and not clogged up.

 

[gaminoree]

Ok, thanks for the input....New PCV valve about a week ago.. Oil from the dipstick looks fine....Guess I will check the compression.... It was running very well before I notice this. I had a header leak/crack so I pulled off the valve covers to remove the headers. Hope it is just condensation.....What should the compression be?????

 

[Hot Air]

As a general rule, you look at the spread between the 6 cylinders...all should be within 10-15% of each other. Others probably have better numbers to share with you.
Conrad

 

[TurboDave]

condensation mixed with oil. Seen it several times.

Mike Banas
87GN

Correct. Only two things that can really cause it. Water in oil (from blown head gasket) OR, a mis behaving/missing PCV system.