Turbo seals about to blow? (1 Viewer)

[Dougal]

What would be a good way to test if crankcase pressure is too high? Oil in the intake? Compression test to check and see if the pistons need new rings? Just looking for input s ok no can begin testing. I vent to atmosphere with the pcv and it doesn’t blow any amount of smoke, but has the occasional drip, but nothing excessive

Compression or leak-down test.

 

[donnerpassing]

Well, pulled the cross over pipe and connection leading down to the compressor side of the turbo, and both were incredibly clean inside, no oil that I could find and nothing that would even come off with a finger, aside from maybe about a drop or two at the connection from the turbo to the cross over. The intake manifold side is literally still shiny silver inside. So I think blowby is very minimal, but I’ll do a compression/leak down test just to be sure the numbers are within spec.

In my mind, what I believed were turbo seals about to blow, may just be an oil gasket on the bottom of the turbo that’s a teeny weepy, paired with the wrong turbine housing clamp letting exhaust soot out and caking it up.

 

[Dougal]

That's exceptionally clean!

 

[donnerpassing]

That's not an OEM band clamp. And it looks like it's tightened all the way?

There is no seal at this junction. It's metal on metal.

I'd try and source a new OEM style clamp. I think the turbo flange is 86mm, the closest v band your light to find would be 3.5" which is 89-90mm?? May be enough if a difference that you aren't getting it tight.
Also, I think the turbo flange is shaped differently (thinner) than what you'd see with a typical v band joint

View attachment 3242846

Well, thought I’d share. Finally got around to pulling the old clamp, came off without much effort, but as it came off….surprise. A chunk of the lip(turbo side) fell out. I suspect this may be where all the exhaust soot was leaking out from. Am I screwed and now needing a turbo replacement? Not sure the new clamp will seal the two surfaces now that that chunk is missing

 

[bj70bc]

I cant think of a way to repair that
Replacing the center section of the turbo could be possible but may be cost prohibitive vs new turbo replacement