Im rebuilding another 603 and this time around i got a different piston pin bushing. This bushing has a OM603 part number and is the "latest" revision. My concern is whether these bushings, with the additional oil holes, will cause problems in this rod (that only has one oil hole). In 88 they had a two hole version and eventually went to a three hole version. So can I run this without harm? Its a lot of area right in the critical part thats my concern. Id hate to have to tear it back down in a month just for wrist pin bushings. The engine is a 961 from a 86 SDL.
02-21-2016, 03:58 PM
1981 300SD 512k OM603 
Linear Mode
