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Whitish smoke on deceleration.

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Old Sep 25, 2014 | 02:28 PM
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Default Whitish smoke on deceleration.

I was logging the truck and notice that when i make the turbo spool and let go the gas whitish smoke comes out Even when i go WOT and let go the gas it does it. It do not happen all the time every 3 to 5 times when i spool it or i go WOT. Here's a video.
Truck specs are, 60,boost cam, trick 76mm kit on 3 psi.

smoke - YouTube
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Old Sep 25, 2014 | 02:34 PM
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Looks blue to me, oil smoke.
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Old Sep 25, 2014 | 02:41 PM
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Yes i kinda see it bluish, What causes that?
Noting its wrong with the motor we just start it up and and i start logging it air fuel at cruise is at 14.5 at WOT with 3 lb's its at 11.3

I was thinking i need a catch can
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Old Sep 25, 2014 | 03:04 PM
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What does your oil return (drain) line look like from the turbo? Any kinks, restrictions, what size is it and where's it re-enter the motor, etc.
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Old Sep 25, 2014 | 03:09 PM
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Originally Posted by urdone
Yes i kinda see it bluish, What causes that?
Noting its wrong with the motor we just start it up and and i start logging it air fuel at cruise is at 14.5 at WOT with 3 lb's its at 11.3

I was thinking i need a catch can
check ur pcv routing
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Old Sep 25, 2014 | 03:19 PM
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Originally Posted by James B.
What does your oil return (drain) line look like from the turbo? Any kinks, restrictions, what size is it and where's it re-enter the motor, etc.
It's a magnum 76 mm turbo kit from trick. The drain comes from the turbo down to the oil pan.
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Old Sep 25, 2014 | 03:44 PM
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I'm going to have to agree with Tim. Is it possible you have a crankcase vent tube running into the intake plumbing somewhere between the turbo outlet and the throttle body? If you've got that scenario then the crankcase will build boost pressure and then come surging back out when you lift the throttle, and that will carry with it plenty of oil. Crankcase pressure is BAD so definitely check this out.
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Old Sep 25, 2014 | 11:32 PM
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Originally Posted by James B.
I'm going to have to agree with Tim. Is it possible you have a crankcase vent tube running into the intake plumbing somewhere between the turbo outlet and the throttle body? If you've got that scenario then the crankcase will build boost pressure and then come surging back out when you lift the throttle, and that will carry with it plenty of oil. Crankcase pressure is BAD so definitely check this out.
I unplug the the hose that goes from my throttle body to the valve cover, I took it off from the valve cover i l drove it and did not smoke. I will test it again tomorrow.
Attached Thumbnails Whitish smoke on deceleration.-photo.jpg  
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