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Old Nov 29, 2014 | 07:52 PM
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My 2006 Z06 is blowing a little blue smoke on acceleration. I have had the heads done. New valve guides, valves and springs. No smoke when just cruising just when I get on it hard. It's got 44k on the motor. It does burn about a quart every 2-3K miles. Any suggestions?
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Old Nov 29, 2014 | 08:33 PM
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What do the plugs tell you---one or more look different, fouled, etc.? Some would say one qt. every 2-3K miles is ok, but blue smoke to me is not so good. Do you still have cats?
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Old Nov 29, 2014 | 08:41 PM
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I still have the cats, I have H/C and recently dyno tunned with no issues at the time. It has used oil but I just noticed the blue smoke recently and only when I accelerate hard. It's just a burst of smoke then goes away.
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Old Nov 29, 2014 | 09:31 PM
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Not sure of oil checking procedure but oil level is ok (something like 5-8 minutes after cool down?)? and check procedure shows correctly?
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Old Nov 29, 2014 | 09:40 PM
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Yep always wait at least 5 min before I check the oil level. In my mind smoke is not a good thing. All the plugs look good dry. No performance issues but hate to take any chances
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Old Nov 29, 2014 | 10:24 PM
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Originally Posted by RandyBa
My 2006 Z06 is blowing a little blue smoke on acceleration. I have had the heads done. New valve guides, valves and springs. No smoke when just cruising just when I get on it hard. It's got 44k on the motor. It does burn about a quart every 2-3K miles. Any suggestions?
Did they use stock or aftermarket springs? If they're aftermarket then it sounds like the valve seals aren't the right one or were installed incorrectly.
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Old Nov 29, 2014 | 10:28 PM
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after market springs. Double springs. Had a new cam put in and the heads done with new guides, valves, and springs
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Old Nov 29, 2014 | 10:34 PM
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Originally Posted by RandyBa
after market springs. Double springs. Had a new cam put in and the heads done with new guides, valves, and springs
Higher lift cams need shorter valve seals as I found out the hard way a few years ago when I would chew them up on a regular basis.

What I'd recommend doing is pull each valve cover off and take a close look in and around the springs. If one or more of the seals got damaged you should see little pieces scattered around.
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Old Nov 29, 2014 | 10:35 PM
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will do. Thanks that's a start and simple check.
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Old Nov 29, 2014 | 10:38 PM
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Originally Posted by RandyBa
will do. Thanks that's a start and simple check.
The other thing that might help is if you're not running an X or H pipe and the smoke is only coming from one side that'll tell you which side to start with first.
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Old Nov 29, 2014 | 10:46 PM
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all stock coming from both sides
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Old Nov 29, 2014 | 11:30 PM
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I had visual oil burn when I ran heavy weight oil with zinc. Went back to 5-20w and no smoke but still consumption (1qt per 2k). I had some small pluming at idle as well no cats with Xpipe
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Old Nov 29, 2014 | 11:47 PM
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Blue smoke is oil burning. Could be rings but the place to start is the seals that were replaced.
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Old Nov 29, 2014 | 11:50 PM
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It's just never easy. May get it all worked out one day
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Old Nov 30, 2014 | 12:21 AM
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my buddy had that issue until he added a catch can and then it was solved.
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Old Nov 30, 2014 | 09:01 PM
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Just wondering? If this lsx motor has a tendency to shut oil.Requiring an oil catch can inline with pvc valve. maybe the pvc valve is stuck open. or you need a second pvc on other left sidw valve cover.The catch can from cca is under the christmas tree.
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