Closing this thread. Had local independent replace timing chain, rails, tensioner. Also needed and replaced leaking radiator and water pump. Fuel filter, brakle pads, fuel filter. CAM all okay but rocker arms replaced (while off). There is one bad lifter but haven't done it yet. Need to figure out which one. Still more projects, but I am comfortable the chain is in good shape.

Steve
85 500SL

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[This message has been edited by Stevegman (edited 06-16-2000).]