mike-p

oil in the ic!What would cause a turbo to put oil in the intercooler and does this happen a lot?
What happened?????

2ndgenrx

Probably a seal or gasket on the turbo, nothing else in the intake line has oil involved.

Bronze MFP

yeah, the oil seal on the turbine side of your turbo is going bad. good news is that you can get the turbo rebuilt. any decent turbo rebuilder should be able to handle it. will cost a few hundred, but its a heck of a lot cheaper than getting a brand new one through mazdatrix, or the dealer if they even carry them.

mike-p

I think i want to try rebuilding it myself.anybody know of a good kit and where to get one???? it is a stock turbo.

Chris RX-7

Good question.. I've never heard of anyone rebuilding their own turbo charger...

I would upgrade to a BNR stage 3
http://www.bnrturbos.com/2ndGen.htm

n1ko

Don't some types of turbochargers need the compressor wheel balanced?

Brody8877

iTrader: (10)

It could be excessive blow by.
You will know when your turbo ate the seal, it will smoke badly underboost, either black/gray/blue smoke. Also you might able to hear the turbine hitting against the housing.

mike-p

yes it smokes bad at idel and on the throttel. oil in the intercooler.
I think i want to try rebuilding it myself.anybody know of a good kit and where to get one???? it is a 87 Mazda RX7 Turbo II with a stock turbo.

scrip7

iTrader: (6)

It's not as difficult as it seems. I have rebuilt quite a few s4 and s5 turbos. There are a few sites that sell rebuild kits, do a Google search. Most kits run around $80-$90. Also search for sites that have DIY info on the teardown and inspection. In addition, if your compressor and turbine wheels are in good enough condition to re-use, make sure you mark the compressor wheel and shaft carefully with a scribe before disassembly. If the shaft nut is ground off on one or more sides for balancing, make sure you mark it's original position with the shaft before teardown. All of the rotating parts are balanced with a great deal of precision in order to keep them from flying apart at rotational speeds in excess of 120,000 rpm. If you discover that you need to replace either wheel, then you will need to have the Center Housing Rotating Assembly (chra) balanced at a turbo shop before the scroll housings are bolted back on. Most turbo shops will do the balancing for around 40 to 60 bucks.

V8slayer

damn, i was hoping to see a good looking TII from i gatherd on the title

sharingan 19

iTrader: (16)

I was in the same boat, (oil in the IC, no boost after 5k) I upgraded to an S5 turbo, now I just need to put it on.

LBC_FC3S

iTrader: (17)

have you also checked the inlet part of the turbo? same thing here with the smoke at idle. happens when the car sits for a while. after i run it, it goes away.

White Knight II

same thing here.. about a drop of oil in the ic inlet and it smokes at idle, only sometimes though, like after driving on the highway and then letting the car sit and idle for a little while.. I was told it was blow-by.

Turblown

iTrader: (12)

Might want to make sure the you have the crankcase properly venting, for a quick check just take your oil filler neck cap off and see if it continues to smoke. If you want a shop to rebuild your turbo, we off the service; www.turblown.net

mike-p

I looked down into the turbo and looks like it's full of oil.I might get the turbo
off today.

Force Fed

Garrett rebuild kits are on Ebay everyday.