crank journal bearing clearence issue/question.

[Blitz_86]

Im building my engine and started assyembling it when come to find out the clearence for my bearings is wrong. tolerance is .0008-.0016 mine are .002 all the way accross using standard size bearings, no the crank hasnt been machined on. I am wantin to know where to go from here, im kinda stuck and looking for advice.

 

[livedsm4g63]

if the engine is out just get the caps ground and get it aligned honed.

 

[donniekak]

Trust me .002" will be fine on rods, and mains. Service limit is actually .004". .002" to .0025" is what i usually shoot for. Our oiling system is overkill, so pressure won't be a problem, and .0008" is way to tight for a high horsepower 4 cylinder.

 

[Blitz_86]

thanks for the info

 

[TSIfreek]

I like our bearings to be .002 -.0025 for both rods and mains. Anything less is too tight