Difference in crank and Conrod bearings

[Driftben]

Oi Oi
I'm currently replacing the main bearings and conrod bearings on my M60 and wondered what the colours of the shells ment when the tolerances were the same?

Like seen here

http://realoem.com/bmw/showparts.do?mod ... g=11&fg=20

[DanThe]

The green white and yellow are all different sized further to the standard and oversized

So you have standard sized, in 3 different sizes

+0.25mm oversized in 3 different sizes

+0.5mm in 3 different sizes

etc etc

I cant remember the actual size stages but a google search should find them

The blue and red big ends are simply just top and bottom

[Driftben]

from what iv found so far after hours of searching,
the crank should be marked with a colour dot which denotes the colour of shell/bearing which needs to be used. I need to confirm this though.

these are what my bearings look like, what do you recon?

[DanThe]

Defo change the big ends, you can see the coating is wearing through on that first one

[Driftben]

Yea that's what I thought.... Bugger that's more money and time until I can build it back up

Another call to bmw by the sounds of it

[Driftben]

well it came in at £611 for main bearings, big end bearings and a set of new crank cap bolts

might need to look for alternate options

[DanThe]

The big ends are not normally massively expensive, and thats your priority

[Driftben]

Yea the main doesn't look too bad but if you look in the picture you can see slight wear so I'd thought id replace the lot not knowing the cost a˜“
I have some plastigauge coming tomorrow so I can check the tolerances. Should be too far out as Iv caught this pretty early