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KBenz 06-14-2004 07:36 PM

Engine noise 380SL
 
My 1983 380SL is making an intermittant, muffled, knocking noise that appears to be coming from the lower part of the engine. Is this most likely a rod bearing? Can those bearings be replaced without an engine pull?

dloveless 06-15-2004 10:50 AM

timing chain would be my first suspicion
 
pull valve covers and check the rails ...

if you need to get at lower end of engine I would pull it. My advice comes from working on 500 SEL so somewhat different but FWIW...

Good luck.

autozen 06-15-2004 11:20 AM

Highly unusual for a bearing to go out in a 116 or 117 engine unless someone has made a sacrifice to the oil Gods recently. By the way they rarely listen. What is the history on the car? You might have loose torque convertor bolts.

Peter


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