davidonmars Posted June 16, 2010 Report Share Posted June 16, 2010 So I got the bottom end together last night on my CR500. Crank is brand new with a new rod and it spun freely when it was on the clutch side bearing. I mated the 2 halves and initially it was binding at 1 spot but fine the rest of the way. I spun it over a few times now it spins freely with no issues. Should I be concerned about this? Quote Link to comment Share on other sites More sharing options...
blowit Posted June 16, 2010 Report Share Posted June 16, 2010 So I got the bottom end together last night on my CR500. Crank is brand new with a new rod and it spun freely when it was on the clutch side bearing. I mated the 2 halves and initially it was binding at 1 spot but fine the rest of the way. I spun it over a few times now it spins freely with no issues. Should I be concerned about this? Probably not. It is not uncommon when assembling vertically split cases to get the crank biased to one side which kind of rubs on the case a bit. You can usually tap the crank over just a touch and it will clear. If your crank rotates and rubs only in one spot, I would be concerned the crank is not trued very well. You might double check with your builder but I commonly see cranks that are "trued" that have .005" of runout which will not last very long. Just something to look at. Mull Engineering Quote Link to comment Share on other sites More sharing options...
davidonmars Posted June 16, 2010 Author Report Share Posted June 16, 2010 will check that out. Thanks for the reply Quote Link to comment Share on other sites More sharing options...
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