View Full Version : Havin a smoking problem


HitmanLSX
10-12-2006, 01:20 AM
see the thread here in the internal section

http://www.ls1tech.com/forums/showthread.php?p=5681759

WAHUSKER
10-12-2006, 09:21 AM
I doubt that it's rings, unless you've been beating the shit out of the car, or running without the air filter. But you can run a compression test to find out for sure. Are you using oil?

Most likely it's valve seals. Especially if Bill installed after market rockers when he put in the ASA cam. They have been known to move off-center & side load the valve stems, which can wear the seals out pretty quick.

HitmanLSX
10-12-2006, 10:40 AM
yeah it's using about a qt every 1000 which isn't horrible for these cars anyways as i've seen much worse. i'll try and do a compression test sunday which is my next day off.

Rottluver
10-12-2006, 11:39 AM
yeah it's using about a qt every 1000 which isn't horrible for these cars anyways as i've seen much worse. i'll try and do a compression test sunday which is my next day off.
So you are saying that at 3000 miles, you are down 3 quarts???? :eek2: Neither of my LS1's burn/ed oil, let alone that much. To me that seems like quite a bit. :(

WAHUSKER
10-12-2006, 12:17 PM
LS1s burn oil because they have ~1/2 qt in the valve covers, and the PCV tube sucks it out into the TB. (tho it's usually the ones that have piston slap that use a lot) My stock motor didn't burn enough to notice until I installed some Harlan Sharp rocker arms. Then it started using ~1 qt of oil per 500 miles. When I put the stock rockers back on, it quit.

Rottluver
10-12-2006, 12:49 PM
LS1s burn oil because they have ~1/2 qt in the valve covers, and the PCV tube sucks it out into the TB. (tho it's usually the ones that have piston slap that use a lot) My stock motor didn't burn enough to notice until I installed some Harlan Sharp rocker arms. Then it started using ~1 qt of oil per 500 miles. When I put the stock rockers back on, it quit.
That must be it as both of my LS1's had/have stock internals. :)

HitmanLSX
10-15-2006, 07:24 PM
OK here's an update pulled the drivers side plugs and the plugs themselves looked ok no fouling or anything. Only concern was there was oil on the threads all the way to the seat. Checked the passenger side plugs and they completely normal, no oil. Didn't get a chance to get a compression check done though, but will later this week.

sidewayz28
10-15-2006, 07:45 PM
damn good luck hope its nothing serious!!

WAHUSKER
10-15-2006, 10:44 PM
Loose valve cover / bad gasket? With 1/2 a qt in the valve cover, it WILL leak & smoke.

HitmanLSX
10-16-2006, 04:28 PM
and the oil could be getting pulled into the combustion chamber through the spark plugs?

HitmanLSX
10-24-2006, 11:37 PM
*bump*

wws699
10-24-2006, 11:54 PM
Were all the threads oily on the drivers side?? (all 4 plugs)

Shawn

HitmanLSX
10-25-2006, 12:03 AM
Yes all 4 plugs on the drivers side ONLY had oil on the threads

wws699
10-25-2006, 01:14 AM
Just thinking out loud here... :chug: The only thing that changed was the PCV valve right? Assuming you had no smoking problem prior. Would be hard to believe that all four intake valve seals went bad at the same time. So
the only thing that makes sense to me is that oil is puddling in the intake and you make frequent right hand turns. Check your rear view mirror next time you take a turn at a decent clip and see if you see a puff of smoke come out the back.. :chug:

HitmanLSX
10-25-2006, 01:21 AM
I'll try a different PCV, and the valve cover shouldn't be too hard to replace... She's throwin random misfire codes so I wouldn't be surprised if it is PCV related and oil is causin the misfires.