Smoke after cam install

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Jun 2, 2008 | 01:11 PM

ProgGod

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Smoke after cam install

Just installed a cam in my new 2008 z06 and am getting a decient amount of smoke on idle. Don't appear to have any smoke while driving. The smoke is white in color. I have a wideband on it and it runs around 14.7:1 at idle. Anyone have any ideas on what it could be?

Jun 2, 2008 | 01:54 PM

Disturbed Bird

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From: Savannah, GA

who did the install? did you take the heads off or just pull out the pushrods? and did you get it retuned?

Jun 2, 2008 | 02:37 PM

ProgGod

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Quote:

Originally Posted by Disturbed Bird

who did the install? did you take the heads off or just pull out the pushrods? and did you get it retuned?

One cam didn't make the power, and during that time we tried another set of heads. So heads were defintely off previously which could be when the smoke started. Oh and we did the cam install..

Valve seals were our original thought, but I would think that wouldn't continue after car has been running for a while. I checked the tune, which is why I was saying the AFR ratio was good.

Jun 3, 2008 | 07:14 PM

Disturbed Bird

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well i really hope you replace the head gaskets. is it a high lift cam? if so you need to replace the valve springs.

Jun 3, 2008 | 07:26 PM

ProgGod

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yes replaced the head gaskets and the springs.

Jun 3, 2008 | 07:43 PM

03 BUSA

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From: Kannapolis, NC

White smoke is usually coolant. Sounds like a possible leak into the cylinders. Is your coolant low?? Also, did you use new head bolts with the proper torque sequence? I am sure you did but thought I would just check.