Quote:
Originally Posted by leathermang
MB Factory Shop Manual does not suggest that a bore can be ' cleaned up' .. and since it is easy to pull the sleeve and put a new one in...that should be the recommended procedure... the chances a used bore can be cleaned up to the extent that it would pass the MB specs for installing a new or used piston are very very slight... perhaps bordering on fantasy....
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I wouldn't call it bordering on fantasy. It is totally possible if conditions are right. If you originally have a group 0 piston and a start with a bore size of 90.898 with no severe scoring, a clean up hone can take off as much as .030mm and be still within spec of a used/new group 2 piston.
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