precision journal bearing play

[89mulletbird]

How much up and down play should a 6152 journal bearing turbo have?

I have my turbo out and I can wiggle the compressor wheel up and down just a little bit.

 

[TT/Ameasap]

IIRC, anything over about .025-.030

 

[89mulletbird]

I think I'll just keep running it as-is. I couldn't find alot of information on replacing a journal bearing.

 

[TT/Ameasap]

Didnt you measure the play?

 

[89mulletbird]

Looks like about .010 - .015, hard to shim it because the blades are curved. If it was 0.025 or more it would hit the housing.

 

[TT/Ameasap]

Ya, if its .025 - .030 you are gonna need a rebuild. Usually you get some play even when they are brand new. .005-.010 or so. I would recheck your method. Im sure Bison has this down to a science and can guide you with better methods of doing this. If its on the car, I usually do a shim stock style technique. If its off the car, dial indicator with housing off.

 

[89mulletbird]

I have it off the car. I should be able to put the turbo in a vice and use a dial indicator, but I'm positive it is much less than 0.025.

 

[20psiofevil]

Once oil pressure hits it it should reduce play even more.