Explain bearing measurements

[72golddustermike]

View attachment image.jpg

 

[72golddustermike]

he told me to order std and 0.10 but is it under .010

 

[RustyRatRod]

The crank has been ground .010 under size from standard. That requires a .010 thicker than standard bearing.

 

[72golddustermike]

so when I order I need to order std mains and .010 undersize
rod bearings

 

[RustyRatRod]

That is correct.

 

[DDodger]

is there such thing as "over 10?"

 

[toolmanmike]

is there such thing as "over 10?"

That would require a crank that is .010 larger than spec. Not likely at all.

 

[Bakerlite]

You want to check those clearances again after you get the bearings installed in the rods and main caps.

 

[pishta]

the bearing receiver (block, rod big end, cam bore, etc) never changes diameter (the OD of the bearing) its the ID (thickness) of the bearing that changes due to the surface that rides on it becoming smaller due to grinding or polishing (crank mains, rod ends, cams (I suppose you could get undersized cam bearings if the cam is expensive?) Now lifters can be oversized but that requires the block lifter bores to be bored and or sleaved. Generally bearings are undersized (thicker) and rings (and lifters) are oversized.