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Old 08-13-2002, 07:38 PM
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Join Date: Nov 2001
Location: Atlanta, GA
Posts: 553
Connecting Rod Bearing Bore M103

Can anyone give me the connecting rod bearing bore for a 1990 3.0L M103 engine?

I am always needing technical data like this, can anyone give me a source where I can find it? I have the mercedes benz Engine 103 service manual, but I can't seem to find the info in the book. Am i just not looking hard enough or is it not there?
George Carstens
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Old 08-14-2002, 08:06 AM
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
There are actualy two sizes! The size depends on punch marks on the bearing cap. WITH 1(one) OR no punch mark the size is 51.600 to 51.609mm.
With 2 punch marks 51.609 to 51.619mm.
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