Originally Posted by Propflux01
Pic of the valve covers removed or it didn't happen!
197k miles, I took a valve cover off just to see what it looked like. Here's a link to the post I made then:
LINK
Originally Posted by ad244
What kind of issues have you had over the years?
None really. But, I've done 11 UOA and every time the report indicates abnormally high Silicon(dirt) level. The reports indicate that this is NOT causing any harm probably because I run a "engine oil bypass filtration system". Recently, when I removed the air box so as to remove the valve cover, I think I may have found my induction leak(s) causing the high Silicon. The air box had some manufacturing defects, "gaps", that I sealed up. My next UOA(next fall) should indicate if this was the source of the Silicon or not.
My avg OCI is 13-14k miles. Never less than 10k miles, and as high as 18.7k miles.
Here's a post link to my 11th UOA:
LINK