Possible Boost Leak
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Tuned
Joined: Dec 2005
Posts: 294
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Possible Boost Leak
On my PSD, the large Y-Pipe on top of the engine is very oily around the turbo boots. Not fresh oil, but that black tarry sludgy oil. Never have washed the engine, but the crap seems to be thicker on side of manifold then the other. Could this be blowby/exhast being forced past the turbo boots?
Post Fiend
Joined: Jul 2005
Posts: 14,582
Likes: 12
From: 21791
no, that is because the closed system Crankcase Ventilation system is directed in the air intake. the only part that is below atmospheric pressure that can suck the gasses out of the crankcase is pre-turbo, and the oil is run through the turbo and all the piping. simple fix is the CCV mod, and take all the intake parts out and clean them inside and out. the oil makes everything slippery and boots CAN blow off eventually. meanwhile, pull the boots off and clean them and tighten the hose clamps down TIGHT!
FTE Leadership Emeritus
Joined: May 2001
Posts: 13,653
Likes: 6
From: Cabot, Arkansas
It's possible that an external source is spraying on the boots, but unlikely.
Pull the intake tubing off from the filter back and look at the crankcase vent connector fitting and down in the turbo inlet. You'll see the same old cruddy looking oil in there as you're seeing on the ouside of the boots. It's being pushed through the turbo and collecting on the boots. You'll also find the same oil on the connections at the intercooler and the orange boots feeding the engine intakes.
Pull the intake tubing off from the filter back and look at the crankcase vent connector fitting and down in the turbo inlet. You'll see the same old cruddy looking oil in there as you're seeing on the ouside of the boots. It's being pushed through the turbo and collecting on the boots. You'll also find the same oil on the connections at the intercooler and the orange boots feeding the engine intakes.
Lead Driver
Joined: Oct 2004
Posts: 7,413
Likes: 1
From: Columbia, MO
Originally Posted by strokin_it7.3
meanwhile, pull the boots off and clean them and tighten the hose clamps down TIGHT!
