Rebuilt motor in frame, due to dropped valve

 

New injectors, studs, head gasket, gauges

Holset turbo = failure within 7 days (oil into exhaust side)

Replaced with cheap eBay turbo = excessive shaft play within 14 days

AFE blade runner= 3 weeks starting to show signs of excessive shaft play.... And slight oil blow through exhaust side

This is getting really old....

Replaced oil feed line and adapter at the turbo when I installed the eBay turbo with new ones...

Any advice or help???

 

 

Edited February 12, 20178 yr by Cueballtech

 

Is what I would chalk it up to.   verify you have good oil flow beyond that get AFE to get you a new turbo.

Is it possible there could be oil restriction in the oil filter housing causing this or am I off base??

do you have good oil pressure now?

Yes

I wouldn't think it is a flow issue then.  

What else will eat a turbo that quick other than oil flow? Just a neophyte asking questions.

Well I let it idle a lil after a drive a lil bit ago and the oil pressure fell off the gauge

I am thinking that if the oil pressure is that low while trying to cool the turbo off, maybe a coking problem with hot oil or at least the lack of any cooling oil. Just the neophyte's opinion,

 I'm wondering if maybe the oil cooler or relief valve could be causing this...

Better put a mechanical oil pressure gauge on there to see what you really have

I would vote that Dripley is correct unless you have bad air filtration.

 

It helps to idle for about 10- 30 seconds to help with Turbo cool down before shutting down engine.

On 2/12/2017 at 1:45 PM, Cueballtech said:

Yes

 

What are you using to verify oil pressure? 

 

If it's the stock gauge and it dropped to 0 that means you were under 6 psi for at least 30 seconds. I'd be worried about a lot more than just the turbo. 

Edited February 14, 20178 yr by AH64ID

Got the new turbo put on, also replaced all fluids, oil cooler, oil filter housing, pressure relief valve, oil filter and gaskets...

Had a lil Gray smoke on start up but cleared up after running a lil while, truck sat for a month while waiting on parts...

Exhaust manifold was dry on inside, exhaust dry on inside, turbo dry.... I'm confused

On 2/12/2017 at 6:42 PM, Cueballtech said:

Well I let it idle a lil after a drive a lil bit ago and the oil pressure fell off the gauge

 

You need to verify the oil pressure with mechanical gauge. Dash gauge is nothing more than a dummy light. You might have bigger issues killing turbos being the oil pressure might not be high enough in pressure. 

 

@AH64ID What's the standard for CR engine oil pressure? Is it still the same minimums...

 

MINIMUM PRESSURES (At least what I know for 2nd Gen)

10 PSI at idle

30 PSI at 2,000 RPM's

Yes same minimums. 

 

Warm should idle at 20ish and cruise at 55-65 depending on load and ambient temp.