Turbo bush or ball

olboy · Postby **olboy** » Wed Oct 26, 2011 6:58 pm

How do you tell if a turbo has a bush or ball type bearing
I have a Garrett T28 and it has Garrett AR48 stamped on the front

Olboy

Postby **NitroDann** » Wed Oct 26, 2011 7:54 pm

If its a nissan turbo is ball bearing. If it has a built in oil restrictor, its ball bearing.

Dann

olboy · Postby **olboy** » Wed Oct 26, 2011 7:58 pm

Thanks Dann
where would the built in restrictor be
It's an FM kit so I don't think its a nissan

Postby **NitroDann** » Wed Oct 26, 2011 9:10 pm

Where the oil feed enters the CHRA.

Dann

olboy · Postby **olboy** » Thu Oct 27, 2011 8:51 am

Thanks Dann
That means I have to pull it all off just to see if I have a restrictor
I can see the oil line and the fitting but I can't reach it
It looks like a flared brake line fitting, would that be likley to have a restrictor under it ?

Postby **NitroDann** » Thu Oct 27, 2011 9:53 am

Only one way to find out

Why do you need to know? Also have you posted this question on miataturbo? The FM kit is popular there and you might get an answer quick smart if you post a photo or 2.

Dann