PeachParts Mercedes-Benz Forum - 1992 300SL Timing Chain Noise

PeachParts Mercedes-Benz Forum (http://www.peachparts.com/shopforum/index.php)

- Tech Help (http://www.peachparts.com/shopforum/forumdisplay.php?f=1)

- - 1992 300SL Timing Chain Noise (http://www.peachparts.com/shopforum/showthread.php?t=161658)

I checked the oil preassure readings related to the noise. It is the same when the reading is close to 3 (engine cold) and when the reading is between 1 and 2 with warm engine. This happens in the same RPM around 600.

Quote:

Originally Posted by Rick76 (Post 1255194)

Your remaining noise may be caused by the upper bushing in the fan belt tensioner damper (small shock). These generally make a noise only in drive or reverse. Easy to check and there are many posts on this forum with more info.

Dear Rick,
Just to let you know that I had a closer look and listened more carefully to the noise coming from my engine. Today I pressed on the top of the fan belt tensioner damper and the noise was gone. I tried several times. I think you caught the cause of the remaining noise. Thank you so much. I'll post the results when I get the chance to change it.

Thanks again.
Sean

I changed the "Fan Belt Tensioner Damper" today and the remaining of the noise is fully gone. Now the engine sounds smooth the way it should be. Thanks everybody for your help, specially Gilly and Rick76.