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      08-18-2018, 11:24 PM   #1
SayHack
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Smoke Past Valve Gasket Replacement

UPDATE: There car is fine, just needed some time for residual oil to burn (took about 30 minutes of engine run time)...the engine was pressure washed after it cooled down.
Suggestion: as suggested by a member, engine needs to be washed with soap and low pressure water right after you complete the job....this should clear the issue but regardless let the engine run for at least 30 minutes before assuming that there is another problem, as some residual oil will still be present.

Recently I have noticed a decent amount of smoke coming out of the engine, especially when starting the car. As weeks went by, the smoke got worse. I finally replaced the valve cover gasket yesterday (including the eccentric shaft gasket and VVT solenoid gasket (aka football shaped gasket) , along with oil filter housing gasket. I finished the job late at night, so i didn't start the car until the next day, only to see a puff of smoking, but it went away after few minutes of engine running. I didn't think much about it, but basically every time i start the engine, a puff of smoke will appear right around the rear of the engine on the passenger side. For the life of me, i can't figure out where it is coming from. Throughout the day, the engine has been running for at least 30 minutes, so there shouldn't be any residual oil left. Im 99% sure that the new valve gasket was installed appropriately, as i was careful to make sure it all sits well. My question is if there is anything else that can possibly cause the car to "smoke" for 2 minutes or so after it sits for at least 15 minutes.

Thanks in advance.

Last edited by SayHack; 08-20-2018 at 12:53 PM.
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      08-19-2018, 06:47 AM   #2
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Could be oil leaking onto the exhaust, though that depends on how quickly the smoke appears; if it's right at start-up, it may well be something else, as a cold exhaust isn't going to create smoke.

Did you clean the engine thoroughly after the work? That should be your first step. Wash (not pressure wash) the engine with a non-caustic degreaser to remove any trace of whatever might be on it and see what happens.
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      08-19-2018, 11:21 AM   #3
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This may seem like a strange question, but have you smelled the smoke? I wouldn't take in an entire lung full of it, but that would help you determine what it is.

How long does it take to start smoking? Even on the headers, oil would probably take 15-20 seconds before it started smoking. If you see smoke 3 seconds after the engine starts, that would be electrical in my opinion.
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      08-19-2018, 12:47 PM   #4
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I would like to say thank you to both of you for the help....The smoke appears about 10-15 seconds after starting the car and it smells like oil (as it smells almost like a burned rubber kind of, definitely no "sweet smell")

Just a little update, after letting the car sit overnight, I started the engine today morning and there was barely any smoke...which makes me think it is likely residual left over from a bad gasket. I just finished washing the engine at the self car wash with soap (i used low pressure for the most part but did blast with high pressure around the exhaust pipes. Im going to let the car sit for the rest of the day and see what happens when i start the engine tonight or maybe tomorrow morning.

Thanks again
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      08-20-2018, 12:54 PM   #5
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There was no smoke today morning, It is all Good !!!!!
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