Numerous Turbos fail-little milage

[psycho6cyl]

Well it took some time to get my lifter situation sorted out. I did but now i am on my 3rd turbo failed. what gives? These are brand new turbos dying on me in less than 2000 miles...My oil pressure is always good. 20psi hot idle 45-50 under hard accel. Any suggestiopns b4 i go and buy another turbio?

 

[Royal-T-Ltd]

Well it took some time to get my lifter situation sorted out. I did but now i am on my 3rd turbo failed. what gives? These are brand new turbos dying on me in less than 2000 miles...My oil pressure is always good. 20psi hot idle 45-50 under hard accel. Any suggestiopns b4 i go and buy another turbio?

are these NEW turbos? if so what brand/model? if not, who's doing the rebuild?

how are they failing? hard parts, seals, etc.? this is important information.....

 

[wickedtt]

Are these the 61bb turbonetics in your signature or who's turbo's?

 

[TurboBuRick]

Are you running a turbo saver?

 

[coach]

I just had same issue this spring.2 rebuilds, 300 miles on one and 10 on the other. I replaced the original feedline and installed an in-line filter. I checked the drain tube and put in a new PCV. Before I started the engine with the new turbo, I just got, I unscrewed the plug to the ign module and cranked the motor until it made a few lbs of oil pressure. After I had oil coming out the turbo feed line, I tightened it on and started the engine. All is well, so far. I am about 400 miles and thats the longest I got out of one this year.

:biggrin:

 

[bison]

What type of failure? Thrust?

 

[psycho6cyl]

I have yet to pull the turbo out but the failure seems to be not boosting and smoking. id say its the seals/bearings? My 61bb was new then sent out to cotton to tnetics for rebuilt after fail and now i am here w another failed turbo(rebuilt 61bb). when i was doing the lifters i did check play in turbo and it seemed to have a lil too much for my liking. figured i was being paranoid. guess i was right. . with these new turbos i have not purchased a feed and return bc they seem to blow clear but that was some time ago..

 

[Squid4life]

Are you using the stock oil feed and return lines?

 

[gnfanatic]

I wonder if the orig fac feed has a small kink somewhere on it killing oil pressure to turbo

 

[notacarlo]

aren't you supposed to use a restrictor type feed fitting on the BB cartidges?
The volume of the stock line is too much for the BB centers as I seem to recall.

 

[rmar]

aren't you supposed to use a restrictor type feed fitting on the BB cartidges?
The volume of the stock line is too much for the BB centers as I seem to recall.

Dan, they come installed on the turbo
But anything bigger than a #4 feed will still overwhelm it.

 

[bison]

I've ran a -6 to a bb turbo with no restriction and it didn't smoke. I've seen restricted cars smoke. Excess crankcase pressure will do it. The ex side seal is not positive at all and is not going to stop oil from entering the ex if there is a drainback problem. It mostly keeps ex gases out of the crankcase.

 

[RUQWKNF]

You mentioned that you had a lifter situation you just sorted out.
Meaning? Did you have wiped cam or lifter failure? If so, there is a possibility that you have alot of trash / particles in your oil system that could have made their way to your turbo / turbos.

Are you using the factory oil feed line?
Are you still using the factory oil cooler inside the radiator?
You could have a contaminated oil system and the small pieces are wrecking havoc on your turbo.

Let us know.

Patrick

 

[psycho6cyl]

I dont use oil cooler anymore. I stopped that long b4 new turbo istall. not they were just noisy lifters. Ok Bison I have also had oil leaking out breathers under hard accel which is positive crankcase case pressure. When I do get a new turbo I do plan on doing new drain and feed but want to make sure that its the problem.

 

[psycho6cyl]

also i am using the restrictor/filter from tnetics...

 

[psycho6cyl]

im al;so tempted to put oil pressure guage right before the oil dumps into turbo on the feed and compare to guage inside.. any thoughts on that?

 

[junkbrick]

im al;so tempted to put oil pressure guage right before the oil dumps into turbo on the feed and compare to guage inside.. any thoughts on that?

This would be the first thing I would do, just install a T fitting in the top of the turbo, one side to the gauge, one to the turbo and the other to the feed line...then you will know for sure.

-reed