b00stedOne

iTrader: (1)

I just bought a second hand turbo. I noticed that it is a little wet in one spot on the exhaust side. I blew air (with my mouth) in the oil feed line and plugged the oil return line with my finger. When I did this I could hear air slowly leaking from the exhaust side of the turbo. Would this be a "for sure" sign that the seals are blown?

Thanks

b00stedOne

iTrader: (1)

anyone?

blwn95civic

You cannot tell if the seals are bad by blowing through it lol

If there is oil in the hot side around the wheel then chances are it needs a rebuild. Is it a ball bearing turbo or journal bearing and how much shaft play does it have?

b00stedOne

iTrader: (1)

its a journal bearing turbo (precision 6262). No shaft play. There is no oil on the turbine wheel or around it. Just a bit of black that would normaly be there.

I just figured, if air can leak around there, so can oil?? But I hope your right. Thanks for the help man.

blwn95civic

There arent actual seals in a journal bearing turbo. It works similiar to a ring on a piston, the only time Ive had a problem with oil leaking into the hot side is when the bearings were wore causing excessive shaft play.