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Old 11-30-2012   #7
Pete
 
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Join Date: Dec 2003
Location: Chicagoland,IL
Posts: 2,667
Default Re: Cam bearing surface slightly rough?

How many miles on the motor?
Has it been apart before?
Is it all factory assembly?
How do the cams look like?

From the looks of it they look like normal wear but without having it in front of me to feel how deep the grooves are can't really say for sure/100%.

Use some Scotch bright on one cam bearing surface and see if it polishes smooth then it's ok,you will not hurt anything.

It is very hard to find one ticking lifter if you know which bank it is i would change all the lifters on that bank.

Had this same issue with a friends low mileage Z (20k) we just changed all the lifters and no more ticking.

Melling JB-2236

Pete
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