Thread: Break-in Period
View Single Post
Old 07-20-2008, 02:21 AM
Dave31's Avatar
Dave31 Dave31 is offline
Super Moderator
Join Date: Mar 2008
Location: Old Pueblo,Arizona
Posts: 11,118
Default Re: Break-in Period

The purpose of the break in procedure is to gradually wear down the "high spots" on componets such as rings, piston, skirts, cyclinder walls, bearings and races, ect.....

A new or rebuilt motor, all machined parts are imperfect to a certain degree and have a "high" and "low" areas which must be mated to those that they roll or rub against to achieve a good running fit.
Reply With Quote