Rough idle after valve cleaning

longliven54 · 06-16-2011, 06:39 PM

I justgot done cleaning my valves with seafoam. As expected white smoke came out after starting the car.. How long should the car idle Nd burn off any seafoAm and return to normL idle???
It's been 5 mins of rough idle And half engine lights are jn and very rough idle...any clue anyone??

cn555ic · 06-16-2011, 06:41 PM

Don't you have to rev the engine a little bit after the engine warms up!

longliven54 · 06-16-2011, 06:49 PM

I tried to give gas, but that seems to have no effect .....unless I put it in reverse or drive...

longliven54 · 06-16-2011, 07:13 PM

Quote:

Originally Posted by cn555ic

Don't you have to rev the engine a little bit after the engine warms up!

ThAnks
It took a lil longer than expected,, almost 20 mins, and it's working fine now..engine seems to resposonding a tad faster now.

Transport3r · 06-16-2011, 07:24 PM

Afraid that's just a placebo effect there.
It has been thoroughly documented that seafoam doesn't do anything besides smoke..

Glad she's running fine again though!

longliven54 · 06-16-2011, 07:38 PM

Quote:

Originally Posted by joshuo

Afraid that's just a placebo effect there.
It has been thoroughly documented that seafoam doesn't do anything besides smoke..

Glad she's running fine again though!

Valves appear to be less coated with all that carbon junk. I scrubbed it with toothbrush, rifle cleaner, and with a copper/Zinc brush. Maybe all the cleaning cAme from me cleaning with the brushes...but I am happy with the results... Not going to mess with doing it again tho..I consider putting this assembly together as being first timers luck.

Transport3r · 06-16-2011, 07:46 PM

Sorry, my bad, I assumed you just ran seafoam through the vacuum line!

Great job on the cleaning then, it should definitely be noticeable now!

Rotorocious · 06-16-2011, 09:51 PM

Good work!

frozenfire · 06-16-2011, 10:08 PM

Quote:

Originally Posted by longliven54

Valves appear to be less coated with all that carbon junk. I scrubbed it with toothbrush, rifle cleaner, and with a copper/Zinc brush. Maybe all the cleaning cAme from me cleaning with the brushes...but I am happy with the results... Not going to mess with doing it again tho..I consider putting this assembly together as being first timers luck.

wait what? if you cleaned them by hand why was there smoke? I think you did something wrong... I cleaned mine with loads of seafoam and carb cleaner... but i did not get any smoke at all... nor was i expecting to see any, it doesn't make sense why you would get smoke since the seafoam doesnt ever get burned...

Rotorocious · 06-16-2011, 10:10 PM

I think some just leaked down into the cylinder

frozenfire · 06-16-2011, 10:13 PM

Quote:

Originally Posted by Rotorocious

I think some just leaked down into the cylinder

oh... i was wondering what would happen, if that happened (guess i finally know). I was real carefull to make sure the valve I was working on was completly shut before pooring any large quantity of seafoam in there.

glad to hear your car is working fine OP, it was also my first DIY (other than oil changes) for this car.

06-16-2011, 06:39 PM	#1
longliven54 Lieutenant 14 Rep 456 Posts Drives: 2007 335i e90 auto Join Date: Jan 2011 Location: victoria iTrader: (6)	Rough idle after valve cleaning I justgot done cleaning my valves with seafoam. As expected white smoke came out after starting the car.. How long should the car idle Nd burn off any seafoAm and return to normL idle??? It's been 5 mins of rough idle And half engine lights are jn and very rough idle...any clue anyone?? __________________ JB4 G5 / VRSF IC / STETT CAI / GREDDY / custom exhaust / iRotora cross drilled rotots / snow stage 3 meth / 19" iForged senekas / upgraded speakers n CF woofer box / M3 bits/ DINAN camber plates/ KONI/ megan racing toe arm/ supreme power lowering perch
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06-16-2011, 06:41 PM	#2
cn555ic 441 Rep 18,331 Posts Drives: 335i Join Date: Jun 2007 Location: US iTrader: (6)	Don't you have to rev the engine a little bit after the engine warms up!
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06-16-2011, 06:49 PM	#3
longliven54 Lieutenant 14 Rep 456 Posts Drives: 2007 335i e90 auto Join Date: Jan 2011 Location: victoria iTrader: (6)	I tried to give gas, but that seems to have no effect .....unless I put it in reverse or drive... __________________ JB4 G5 / VRSF IC / STETT CAI / GREDDY / custom exhaust / iRotora cross drilled rotots / snow stage 3 meth / 19" iForged senekas / upgraded speakers n CF woofer box / M3 bits/ DINAN camber plates/ KONI/ megan racing toe arm/ supreme power lowering perch
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06-16-2011, 07:24 PM	#5
Transport3r Major 86 Rep 1,262 Posts Drives: 2011 N55 E90 Join Date: Sep 2010 Location: Melbourne, FL iTrader: (4)	Afraid that's just a placebo effect there. It has been thoroughly documented that seafoam doesn't do anything besides smoke.. Glad she's running fine again though! __________________ Josh-
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06-16-2011, 07:46 PM	#7
Transport3r Major 86 Rep 1,262 Posts Drives: 2011 N55 E90 Join Date: Sep 2010 Location: Melbourne, FL iTrader: (4)	Sorry, my bad, I assumed you just ran seafoam through the vacuum line! Great job on the cleaning then, it should definitely be noticeable now! __________________ Josh-
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06-16-2011, 09:51 PM	#8
Rotorocious Lieutenant Colonel 103 Rep 1,520 Posts Drives: 335xi Join Date: May 2010 Location: Colorado iTrader: (3)	Good work!
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06-16-2011, 10:10 PM	#10
Rotorocious Lieutenant Colonel 103 Rep 1,520 Posts Drives: 335xi Join Date: May 2010 Location: Colorado iTrader: (3)	I think some just leaked down into the cylinder
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