Blow Turbo?

[nissan200sx.dk]

Hi.

Have a RB25DET smoking blue.. I know pistons / bore is worn. It began to smoke blue after I had a broken bolt for cam pully belt, result was 24 bend valves.. After I got valves fixed it smoked. Did not smoke before bend valves. A valve guide had broken. Got the head completely rebuilt. Helped alot on the smoke issue.. But was still smoking.

Today It was more bad than normally.. Just to check I checked axle movement on my turbo. (A Garrett GT3076r, has run 30.000km.)

When engine is just turrned of, no oil pressure of course, but stil hot and with "some" oil in the turbo, how much up and down, back and forth movement must there be on the axle..?

[RANDY]

I'm no expert, but the less the better? There really shouldn't be ANY if it's perfect, right?

I guess if the oil is leaking through the turbo and out the exhaust side... =blue?

[Kinks]

on ball bearing turbos a little bit of axial (ie in/out) is OK, and radial (side to side) is generally bad. When I say a little bit I mean you can feel it, but visually it doesn't move a lot.

[R31Nismoid]

Side to side is ok, your going to get that.

Its less prominent with ball bearing, but that is a little.

My bush had a lot more side-to-side compared to the ball bearing i had.

in-and-out movement is bad. I've never had any on either turbo