bearings for crank / rod

[92jclpRS]

how would i go about finding what spec for the bearings to match my crank and my rods. The crank was polished ( maybe machined? ) and i got aftermarket eagle rods. I apologize for my stupidity. Please let me know if you have ne help for me! thanks

 

[98TsiAWD]

How much did they take off the crank if anything? That would determine what bearings to buy.

 

[92jclpRS]

thats the problem.. i dont know.. i bought it all and the dude i got i from has had it all there for a few years..

 

[98TsiAWD]

thats the problem.. i dont know.. i bought it all and the dude i got i from has had it all there for a few years..

Do you have a micrometer? Then you could measure all your journals and find out what bearings you will need by comparing to stock specs on the crank.

 

[bigjangin]

measure it and compare to specs to find out if it was machined or just polished. Our cranks are nitrided stock, so its not a good idea to turn them(unless you renitrate, renitride spelling ). If it was my motor I wouldnt want to use a turned crank.

 

[mavisky]

i used a turned crank in one of my first rebuilds and within 1500 miles i already had a nice deep scratch on teh #4 rod journal.

 

[pinknuggit]

crap.. i just had .25mm taken off of my main and rod journals on the crank that i'm building my motor with.
So given the theory of re-nitriding, is my crank going to live a short life?