Paulieflyer2 Posted April 28, 2011 Share Posted April 28, 2011 Can anyone tell how much out of round a crankshaft rod journal can be if any,will it run withminor damage,or doe the crankshaft need to be ground Quote Link to comment https://www.bigmacktrucks.com/topic/18879-e-7-spun-bearings/ Share on other sites More sharing options...
Rob Posted April 28, 2011 Share Posted April 28, 2011 Can anyone tell how much out of round a crankshaft rod journal can be if any,will it run withminor damage,or doe the crankshaft need to be groundIf the rod journal has had a bearing spun on it, best to regrind the shaft. Rod journals take a lot more abuse than the mains and .0015 out of round is inviting trouble. Rob Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/18879-e-7-spun-bearings/#findComment-76869 Share on other sites More sharing options...
theakerstwo Posted April 30, 2011 Share Posted April 30, 2011 And if it has spun a brg good chance the crank is cracked or too soft. The mechanic will check for cracks and the hardness before they grind. Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/18879-e-7-spun-bearings/#findComment-76947 Share on other sites More sharing options...
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