Are all jaguar xjr cranks the same.is it the blocks that are bearing specific?

 

http://www.jagrepair.com/images/Auto...Code%20168.pdf

Gets into bearing measurements around page 53 of the pdf.

I don't want to answer concretely cause I don't know for sure, not experienced enough to be rebuilding engines yet, but that guide should get you pretty far.

 

Thanks.very helpful information. Just to be clear both bearing shells have to be the same color code for top and bottom

 

Also where can I find out how to decode the engine codes for the color bearings used from factory

 

The way to determine what bearings that are needed will be found in the link that was provided for you. It starts on page 6 of the engine assembly section. You will see Bob's, Motorcarman's, notes. It shows how to figure what size bearing that is needed.

 

If I got a used crank do I mic all the main and rod journals and get the bearings to match regardless what yhe block codes say?
Also I was looking at the size graph and some had 2 different color coded bearings.that dont make make sense to me to put 2 different size bearings on the same rod or main unless im not understanding it.

 

I'll bite...

From what I remember in my reasearch the only way for the dealer to sell you new crank bearings is for you to bring the old one to match and making sure you know the location and orientation. From what I remember there is some measurment on the block for the journals and somehow the crank has to be matched to it, read the manual I know it's there.

I also know there is someone else selling oversize bearings too. I just don't remember which tuner it is but if you search here you will find it or someone else will chime in.