Heavy blue smoke

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Mar 28, 2006 | 07:29 AM

macksarf

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Heavy blue smoke

Hi, my 7.3 powerstroke was doing a heavy bleu smoke as soon that i ask him some hp, it was like i cant see the car behind. I go to the garage and the change the turbo, but it is not ok yet, i have seen that the oil commes from the ccv tube ( flow when i disconect it), when engine is running, i disconect the tube there is only smoke that come out but i guess that the turbo blow some oil when running connected. I can do the ccv mod but i guess this amount of oil is abdnormal, what can caus so much oil going up that ccv tube?

Mar 28, 2006 | 07:40 AM

clux

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From: Carhenge

Blowby from worn rings would be the most like cause.
could also be caused from overfilling the crankcase.

Mar 28, 2006 | 07:52 AM

72Lester

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From: NW Wyoming

My CCV was sucking oil in the intake pretty good as well (pics are in my Best Weekend Ever post). I did the CCV mod and no oil has come out of the hose yet. I did run the entire length of hose at a downward angle so there is no collection points or dips. Only thing I can think of is that the negative pressure in the inlet helped to suck oil up from the CCV. Even then though I never got blue smoke. I'd lean toward bad rings as well.

Mar 28, 2006 | 07:59 AM

Kwikkordead

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From: Rio Rico, AZ.

Welcome to FTE Macksarf.
I agree with Clux and 72Lester. You could try removing the oil filler cap and driving it for a short ways. That would provide an alternate route for the CCV. If your smoke is reduced at all when you do that, or if it makes a big oil spray on the bottom of your hood, that would confirm bad rings.
To be sure I recommend that you go get a volume test to measure the amount of blowby. I forget the exact name for it, but it is a way of measuring the amount of crankcase gasses generated by the engine.

Mar 28, 2006 | 01:21 PM

macksarf

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Thanks, i guess u are right with the ring, i wolud like to know if i can drive that truck with the ccv unpluged, supposing the ring is the problem? The matter is the truck is now 400 mile from my garage!!!

THX

Mar 28, 2006 | 05:47 PM

clux

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From: Carhenge

Having the ccv connected or disconnected isn't going harm the truck. It may spray some oil over the engine compartment though, and you probably don't want it getting on the exhaust manifold or the turbo (fire hazard). If it is the rings, driving it now probably isn't going to do further damage unless they are so far gone that you are getting a lot of fuel in the oil.

Mar 28, 2006 | 05:57 PM

PowerstrokeJunkie

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From: 21791

Quote:

Originally Posted by Kwikkordead

To be sure I recommend that you go get a volume test to measure the amount of blowby. I forget the exact name for it, but it is a way of measuring the amount of crankcase gasses generated by the engine.

that would be a crankcase pressure test, using a water manometer.