Generation III Internal Engine 1997-2006 LS1 | LS6
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Old Jul 1, 2013 | 02:50 AM
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Default Smoken!!!

No this in not a burn out video. Im having another issue of smoking. First I had bad valve stem seals. On hot starts id smoke like a train. Thats fixed and hot starts a from what i can tell are clean .On the other hand say im out running around and i decide to get on it. Like a good pull from 2nd into third to about 4500. Then i let off in gear and here comes the smoke. Its from what i can see whiteish with some blue. Kinda grey i guess. Coolant and oil levels have been stable. not losing any of each that can be noticed. Like i said its only when you let off after doing a hard pull. Which honestly i dont do very often. What could this be? Any help would be great.
THANK YOU
Jim
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Old Jul 1, 2013 | 06:48 AM
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"First I had bad valve stem seals."
Sounds like you may be back to the above issue. Hi rpm pull, slam the throttle shut, vac rises. Hi cyl vac pulls oil mist thru the seals....You get smoke.
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Old Jul 1, 2013 | 08:12 AM
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Are you running any kind of catch can, or are you running your stock pcv system?
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Old Jul 2, 2013 | 12:20 AM
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Originally Posted by Old Geezer
"First I had bad valve stem seals."
Sounds like you may be back to the above issue. Hi rpm pull, slam the throttle shut, vac rises. Hi cyl vac pulls oil mist thru the seals....You get smoke.
Very well could be. I just have the stock valve stems. I heard of people "upgrading" to another style. Will have to look into that. Could bad valve guides be an issue here? When i changed the seals the first time I used a dial indicator and tested the for wear but nothing caught my attention and the tests resulted in number that were in spec.
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Old Jul 2, 2013 | 12:22 AM
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Originally Posted by mark21742
Are you running any kind of catch can, or are you running your stock pcv system?
No i have holly valve covers. Each just have a nipple that a standard 3/8 ID hose slips over. Had one running into the throttel body and one into the intake right behind the throttel body. I even tried just letting them vent open in the motor bay and plugging off the ports on the intake and throttel body. Its still the same.
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Old Jul 18, 2013 | 07:38 PM
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bump. Any more thoughts would be awsome.
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Old Jul 19, 2013 | 12:32 AM
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Change the seals
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