After reading posts about timing chain stretch and replacement I am very nervous about the timing chain. The car has 197k and chain has never been replaced! The 15k service was done at 195k by the same mechanic who has worked on the car for 15 yrs. I assume he knows to check the chain.

How do I remove the valve cover to check it? I found four bolts that are easy to get to, but what about the other stuff attached to the valve cover. Once I unbolt it do I need to remove these things as well? Thanks! Joe