Engine bearings

DDracomoderator24 Apr 2013, 09:51

Hi Guys

I am looking to buy engine bearings, I can get ae, engine dinamics and something like toyo, I actually want ndc bearings but are unable to find anyone selling them and I am not interested in importing a set of acl bearings for R2000 because I don't have the money.

Any idea where I can get ndc bearings or even a suggested make that would carry the load?

thanks

DDracomoderator24 Apr 2013, 10:50

Just spoke to Federal Mogal who supplies ae bearings and apparently the bearings for the CA is lead/copper bearings, thus according to what I read should not be a bad bearing, if all attemts fail I will have to use AE.

GGary5724 Apr 2013, 17:26

Bearings are cheap, what size you want?

DDracomoderator26 Apr 2013, 07:55

Measured my crack yesterday and are within the maximum play, the mains that is, the big ends is well within spec.

So I am hgonna use std bearings.

GGary5726 Apr 2013, 15:33

What number bearings, std comes in 3 sizes...

DDracomoderator26 Apr 2013, 15:45

Thats new to me that the standard size comes in 3 sizes, please explain??

EEnzio26 Apr 2013, 15:49

EM-38 in the FSM

DDracomoderator26 Apr 2013, 16:01

To be honest don't understand, will check the code on the xsisting bearings and post it.

DDracomoderator26 Apr 2013, 19:43

Ok, the crank was machined to balance I presume, there is a bunch of ones stamped into it, so 1+1=2 not a clue what that means. According to what I understand the aftermarket shops only sell one grade(size) standard that is within the allowed limit 0.1mm
Pics if it will tell u guys more than what my brain can make sense of.
IMG-20130426-00172.jpg IMG-20130426-00175.jpg IMG-20130426-00177.jpg IMG-20130426-00179.jpg

EEro_sennin30 Apr 2013, 10:23

Did you have the crank at an engineering place?

DDracomoderator30 Apr 2013, 10:34

Soething like that yes, all the journals are still within std spec.

EEro_sennin30 Apr 2013, 10:44

Ok thats good, you need to check the numbers stamped on your block and stamped on the crank. You check in the manual as they said how to calculate the bearings you need. You will get something like a colour, green, yellow, etc.. and that is the bearings you have to get. They might not all be the same, so you might need to get different "colour" bearings for each journal. This is for standard Nissan bearings so that tolerances are perfect.

If you get ACL bearings or what ever, just get standard sizes all round.

DDracomoderator30 Apr 2013, 10:54

Cool, understand it that way, will definately go aftermarket and not nissan.

3300sx30 Apr 2013, 13:26

if using aftermarket bearings i would sugest getting some plastiguage at the very least to check clearances.. nissan has like 4 grades inside what aftermarket calls std.. catering for very precise clearance adjustment

DDracomoderator30 Apr 2013, 13:40

Hear what you are saying, not that I know how to use a plastiguage...the thing is it is only std aftermarket size and it falls within the 0.1mm which is the limit according to fsm, so it should be fine, not ideal but fine??

EEro_sennin30 Apr 2013, 13:56

Then read how to use it. Or read how to calculate the sizes. I'm sure you don't want to put everything together just to have to take it out again cause the bearings knocked . Just saying be safe rather than a angry man later on.

DDracomoderator30 Apr 2013, 14:02

I agree with you but again my question is, I am using aftermarket std bearings that come in 1 size, that size is specd within the 0.1mm play allowed, if the aftermarket bearing measures 0.099 or whatever...what do I do?

EEro_sennin30 Apr 2013, 14:09

Were you given the sizes of each journal when you had it checked, perhaps by that you can judge how much room you have? If you are on the final edge of the allowed play I would rather make a plan than using it, cause it probably wont last as long as it potentially could. Seeing as you drive your car hard.
Either get a new crank then or have the existing one machined to fit bigger bearings.

DDracomoderator30 Apr 2013, 14:12

I was just told it was within the limits. Thanks for the advice guys.

3300sx30 Apr 2013, 17:11

"should" being the magic word 🙂 i hear what you are saying, but i personally just dont like closing up a engine with clearances that "should" be ok.. 😂

ps :sal you help om clearances vinnig te check met micrometers as jy wil..

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