How long would you give your truck to burn the oil out of the exhaust system after your turbo seal had given up and dumped oil in to it for a couple days. It doesn't smoke bad with heavy throttle but at idle it is James Bond mobile. No one can follow me.

Also I don't seem to be building as much boost under light throttle as I was. Could the exhaust housing be flowing less due to the oil crude in it from the oil leak. Hopefully running it will burn this out. Or it may be my overly sensitive imagination now that I had an issue.

Inquiring minds want to know.

Ryan

 

Hard to say. As long as the oil is going out the exhaust side, and as long as the fins aren't hitting the turbo housing on the intake side, and you keep the oil full, it might run for a while.
But if the intake side starts leaking oil, trouble will follow shortly.

 

I replaced the seals this afternoon. I am just talking about the residual oil left from it leaking.

Ryan

 

Did the turbo grenade ? How is your cooler .... It can take a bit to burn out . Just replaced one on an Int. Left a trail of oil on the hill leaving the shop . Skeeter fogger for sure !

 

No. It was leaking slow. 1 qt over about 500 miles. But the pipe was wet.

Ryan

 

You will need to give her heck and heat up the pipes to burn it out .

 

Tow heavy with it if you can. Maybe road trip? Get the EGT up there.

 

60 miles and still smoking with no signs of clearing up. Seems to be white smoke and only at idle and low RPM after it warms up. Running smooth.

And boost is not building unless i really get into it. I mean 2-3 lbs where i think there should be 8-10 lbs. but under hard accel, it still builds 30 lbs. Could a bad seal between turbo and spider cause this?

Ryan

 

I had a boot work loose after some work not long ago. I don't know if you have an OBDII tool/gauge, but I noticed a big drop in boost vs. backpressure with a boost leak. EGTs got my attention too.



You can take the passenger side IC boot off and run a piece of cable or chain in the IC opening as a rudimentary dip stick to see if oil is built up in there.

 

This thing is just getting worse. I pulled the intake side of the turbo inlet and there is a very thin coating of oil. I am confident it will be on the exhaust side as well as it is dripping from the exhaust pipe. Have to wait till it cools down and Thanksgiving is over.

I must have messed up the housing when I did the first rebuild preventing the seals form sealing is the only explanation I can think of. It doesn't appear to be that complicated so I don't know what I could be doing wrong. I've built engines and a manual transmission so don't think rebuilding a turbo with 15 parts would be beyond me, but I am getting whooped.

I will check the intercooler oil level too. The boost was great after the first rebuild. It just leaked oil out the exhaust. Now, immediately after the second rebuild the boost isn't good and its leaking oil. So I'm $200 for riff raff wheel, $80 rebuild kit, $80 rebuild kit, and $80 in balancing into this rebuilt turbo that there was nothing wrong with originally. Sounds like $440 that should have gone to a GT38R.

Any input is appreciated.

 

CCV leaves a thin coating of oil on my intake, it did this with the stock turbo as well. I don't smoke or lose oil between changes - I see no problem with a light amount of oil on the intake.

I can say I popped the RTV on my intake manifold at just over 30 PSI, have you done a boost leak test? Does the boost gauge bounce when you get on it?

 

Havent done a leak test yet. The gauge doesnt bounce. It just doesnt boost as much or as fast as it did prior to this rebuild. At first i thought the turbine wasnt spinning.

This morning at 50 mph with my 4 wheeler and trailer it was turning 2300 rpm and boost was at 12 lbs up a hill.

Ryan

 

Boost leak or the internal oil seal in the turbo is going south. Have you pulled the intake tube and checked for play in the wheel?

 

Found a very interesting article about a little oil hole in the center section at the seal that must be clean to drain. I have not even looked for this so it is ver possible mine is clogged. Going to check it tomorrow.

Ryan

 

Well the exhaust side seal was completely gone this time. I don't understand what's going on here. The exhaust turbine is trashed and the compressor side has rubbed the new compressor wheel slightly. Does any contact trash the housing and wheel or is there a threshold of damage? It is very slight. On the housing, it will just barely catch your finger nail.
Waiting on a call back from Barders as well.

Ryan