Thread: Should I replace M103 chain since head is off?
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Old 01-11-2009, 06:27 PM
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dkveuro dkveuro is offline
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As Arthur said....Chain tensioner needs removed and reset. Personally I would, although I have seem them go 200,000 or more.

With the head off it is a real easy job. ...as is the guide.
HOWEVER...after I did my own, I now have a slight whirring noise at idle.

I have re chained about 60 or 70 Mercedes over the years...perhaps more, but never got this noise from a 103 engine before.


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