I just received my series 5 J-Spec motor, which came with the turbo. I stuck my finger on the shaft, and if you push it side to side it will slowly move back / forth (1 millimeter? ). Is this rebuild time? If so, what does this normally cost?

I wouldn't mind blowing this turbo up ... Just as long as it doesn't take out my engine with it when it goes.

Thanks!

 

a little play is normal

even new turbos have "some" play

 

Take the IC off and check it for alot of oil too... If there is a crapload in there (more than a few ounces) then you may have a oil seal bad on the turbo and its warped something.

Have fun with the harness that thing is a bitch .. LOL

 

damn damn damn!!! Not what I wanted to hear about the harness BuddyRX-7! I take it you've done (doing?) this swap?

Any hints on the wiring (FSM?, turbo or N/A?)

Thanks for the turbo info guys! When a turbo gets too loose, what happens, do they go BANG! and throw bits of metal down the intake? :-)

Thanks!,
Manolis

 

Check for axial play (front to back) - there should be zero, play here is bad and means rebuild time. Side to side is ok (the bearing is designed to 'float') although I don't know how much is too much except that if you can force the inducer to hit the side then its too much. My 87 turbo has about 1mm side-side and still boosts 7psi without oil leakage.

Henrik
87TII