stevieturbo

As above, 60psi at the turbo inlet is far too high.

NicD

iTrader: (7)

Yup, 60 psi is too high. Restrictor

FasTimeSS

iTrader: (47)

where can i get a restrictor?

FasTimeSS

iTrader: (47)

The one on the left is the feed i had on there with 60 psi. i changed to the one on the right to lower the pressure and it didnt do ****.
Still smoking like a ****.

NicD

iTrader: (7)

What size restricter did you try with? I would start with a .080 and go down from there. Journal bearing or Ball bearing?

stevieturbo

Both those holes look massive.

Restrictors are generally improvised.

FasTimeSS

iTrader: (47)

journal bearing. but why have i never had this problem with this turbo before??? doesn't make any sense why it would start doing it now. Can i use a n20 pill in line as a restrictor?

NicD

iTrader: (7)

People sell fittings online that allow you to use N2O jets as a restricter for your turbo or you can just make one up. They also sell fittings with the holes drilled accordingly. Or weld it shut and drill it out with a good accurate drill bit of the appropriate size.

As for why you didn't have a problem before, not sure but it sounds like you were just lucky. 60 psi is way too high at idle without a restricter for MOST turbos, period. Unlike what half of the responses in here would lead you to believe restricters are pretty damn common and their necessary size varies with your motor's oil pressure and your turbo is probably fine.

stevieturbo

So what was the original problem ? Sounds like the same one to me.

And if you can fit the nitrous pill, then yes.

FasTimeSS

iTrader: (47)

the shaft had alot of play when it blew and took out the seals. I spun it too high (30psi) and back pressure was an issue.

FasTimeSS

iTrader: (47)

at this point its not the drain i took my clear 1 inch hose from the turbo put it straight into a bucket. Turbo still Smoked like a ******* bitch spewing oil out the exhaust... I guess once oil blows past the seals once they are done. well im done ******* with it, **** precision

onfire

iTrader: (17)

Oil past the seals will not kill them...heck they look like piston rings...pretty strong...

Good advice posted above...put a real restrictor in it...0.080 is a good start..those pics you posted are not restricting.

Texhotrod593

iTrader: (7)

OP if you dont want to send it back to precision then give majestic turbo in waco tx a call. The are pretty good with rebuilds and hybrids etc...

Boo"SS"t

iTrader: (2)

I totally agree. I think there's a wide misconception among turbo guys..." that once a hot oil passed through the seals then it's all over". Not true at all. If you ever taken one apart you'll understand exactly what onfire is talking about.

rotary1307cc

iTrader: (5)

Majestic is good people. As is Chris at CRT

If it is pushing oil draining straight into a bucket it has issues even with 60 psi

That bearing assembly needs oil

stevieturbo

it may need oil, but not 60 psi worth.

rotary1307cc

iTrader: (5)

Lol you haven't been around many heavy rotor journal bearing turbos then

If you think 60psi should puke oil ahhhhh no

All the diesel stuff I am around run 45-65+ journal bearing with -4/-6 unrestricted feeds

Put a baby restrictor in there and once it burns up send it back to precision and see what they say

stevieturbo

I didnt realise he had a big diesel turbo fitted to his car ?

FasTimeSS

iTrader: (47)

It has had 60 psi at the feed for over 2 years and never a problem before. Dont wanna burn up the turbo

rotary1307cc

iTrader: (5)

You really are the turbo guru arent you?