Engine bearings

DDracomoderator02 May 2013, 07:39

I hear you Nico, the crank was measured with a micrometer and I was tolf it is withing spec but if I get the bearings, which has been ordered and paid already, will you be able to measure the bearings without installing it in the block, will that give you a close enough measurement to the play on the journals?

3300sx02 May 2013, 15:03

yep.. its just precaution, a journal can be on the high side of in spec, or on the low side of in spec. the same with the bearing shells, a spesific shell can be on the thick side of spec, or on the low side of spec.

so what you do is, when you start assembling, you assemble the bearing shells , main and bigends and torque the caps down, leaving the crank out. measure inside the bearing, measure the crank journal that corresponds to the position, and voila you know the clearance..

so now you can swap out bearing shells to average out the clearance, so that you dont have a bearing too tight or too loose.. thats why nissan has so many grades inside STD, so you can get very close optimum clearance..

like i said, i can help you if you want, just before you put the motor together we can quickly measure and make sure (if you want), or you can take the chance, it SHOULD be ok.. 8)

DDracomoderator02 May 2013, 15:10

I go for your route, will you make a turn to come and measure please, I should have the bearings next week.

3300sx03 May 2013, 08:43

dis reg chom, gee my net n lui as jy reg is..

DDracomoderator03 May 2013, 09:19

Dankie Mineer!

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