560 sel timing Chain

[wikkedpissa]

My 87 560 has about 157k on it. I am coming up to the 160k mile mark. Timing chain guides are supposed to be done every 80k miles or 10 years. Now I have been shopping around for a mechanic and one I spoke to yesterday said that he can inspect the chain and if the chain has no slack and if I am not hearing a clanging or slapping noise when I first turn the car on in the morning then the car would not need to have the guides or chain done as of now. I bought the car without records and it has been very good to me so far, anyone had their chain inspected instead of replaced?
Thank you.