Welcome to the forum... this section isn't really the correct place to post this as it's for actual forum / account issues, not rzr related discussion. So you probably won't get the best or most replies posting here, it would be best to post in the forum for your specific machine, or in the engine subforum. ( A mod will most likely move this post )

In my personal experience with you issue, the service manual and polaris don't ever give you the actual bearing sizes, just how the engine and crank stampings reference in a matrix to a color coded bearing (yellow, blue, green, white..etc).

 

I'm new so forgive me. I understand the concept of the book for the bearings, but they tell you to use the numbers on the case and the crank and it will give you what color bearing to use. But my case has 2 letters and 4 numbers. And the service manual says it should be all numbers......see my delima?

 

what are the letters and numbers? and what machine? have a pic by chance?

 

case numbers are SC23333
it is a 2016 900 trail rzr

 

drop the SC, just the 23333 are the numbers you need, my xp 900 had SC 122211, and i never had issues matching it up in the matrix. I had 6 numbers, but your machine may only need 4 or 5 like you have.

 

Right thats what I did, but would like to see in writing from Polaris where that is right. If you know what I mean.

So that would mean that the first crank bearing would be a 2

heres how i set it up

Case 2 3 3 3
crank 1 2 3 4 5 6

spot 2 & 4 are for the rods

look right?

 

do you have the service manual in hand? there is a balance shaft in that engine still right? from what i've found you should still have 6 digits on the case...

1 digit on each rod
6 digits on the case
6 letters on the crank shaft
there should be two letters on the balance shaft too.... but the service manual is kind of vague in that area

this manual is also terribly worded compared to my XP900 manual, so i can see your confusion... although i see they do give you bearing and journal diameters, that's nice

get some pics if you can, and let me know all the stamps you've found on everything, I'll see what i can come up with for ya, but this is how i interpret it: (irrelevant numbers used for ease of ID)

Stampings:
ROD: 78
CRANK: ABCDEF
CASE: 123456
Balance Shaft: GH

Bearings:
PTO Rod: 7B
MAG Rod: 8D
Crank (From PTO Side to MAG side): 1A - 2C - 3E - 4F
Balance Shaft: 5G - 6H

Using the actual letters / numbers, the matrix plays out like this:
1B - Blue Bearing
1G - Blue
1Y - Green

2B - Blue
2G - Green
2Y - Yellow

3B - Green
3G - Yellow
3Y - Yellow

maybe they consider the balance shaft a constant, or with a high enough tolerance, that they only give it one assigned bearing size... odd, but possible i guess, and that would explain your missing numbers, if they are actually missing numbers (that's all speculation)

 

Case SC2333

Crank BYGGBG

So I came up with
2b for 1 which gave me blue bearing
3g for 3 yellow bearing
3b for 5 green bearing
3g for 6 yellow bearing

this is according to the service manual I have

 

As I decode that i get:

Main Bearings ( PTO ---> MAG ): Blue - Yellow - Green - Yellow

 

Thank you so much for your help.
Is there somewhere that it is documented that the letters are not used? or what to do if this happens?

 

Glad to help!

Not that I can see anywhere... but i believe that "SC" is just a standard stamp of sorts. My 900 had it on both engines i had in it. It does seem very odd that you only have 4 numbers, are you sure there's not any more numbers hidden under grease or grime or something? those last two would be in reference to the balance shaft, but the service manual i looked at also doesn't say anything about balance shaft bearing selection, but it does show 6 digits on the case stamping, its weird.

 

nope nothing else, I cleaned it to where it looks new like yours.

 

huh, that's odd, let me know if you find anything more out about it, I'm just curious if nothing else

 

will do