View Full Version : Smoking under the hood

12-23-2010, 06:18 PM
Ok. yet another issue and this one bothers me. I recently rebuilt a motor and dropped it in the Camaro. I replaced all the gaskets and seals. I started to notice a smell like oil on the exhaust. I looked under the hood and there's a little bit of smoke coming from the side of the motor. I cant tell where its coming from.

Could it be leaky valve cover gaskets? brand new?

One of the reasons I suggest valve covers gasket is that it is a little worse after I ride it hard using the upper RPM.

Any insight before I go tearing into it?

12-23-2010, 08:40 PM
can you tell if its coming more from the front or back of the motor? my oil pan had a bit of a leak to it and if i rode it hard there would be smoke comming from the back of the motor and i could smell the burnt oil.

12-23-2010, 10:12 PM
It looks to be coming from around the front of the motor.

Throwback Bird
12-24-2010, 09:04 AM
Try tightening the valve covers a little.

12-24-2010, 02:52 PM
make sure it's not something simple like an oil pressure sensor or oil filter

12-25-2010, 12:22 PM
The valve cover gaskets set in a small groove too, so you could just need to reposition them.

12-25-2010, 12:26 PM
I hope its as simple as valve cover gasket. I'll check it out after the snow melts lol.

01-03-2011, 11:38 AM
Well I did get out there under the hood and tightened the valve covers. Although I didn't get the bolts that were hidden. but it seemed to have helped. I know the valve cover gaskets are in the right place when I put the motor back together. I still smell the oil on the exhaust a little, but no smoke. Thinking it burning the rest of the oil off the mani.

Throwback Bird
01-03-2011, 11:45 AM
That's probably the problem mine did the same thing. The only way to git to the top two nuts on the valve covers is remove the plenum, it sucks.

02-06-2011, 10:02 PM
Still leaking a little oil. I still suspect the valve covers. Checked the oil today and. Im a quart or so low. :dis: looks like ill be pulling the valve covers all the way off soon. See if I can't pin point the leak

02-06-2011, 10:27 PM
that's an awful big leak for a valve cover. Have you double checked to make sure it's not the oil pressure sensor or oil filter that is leaking?

02-07-2011, 12:13 AM
When I saw the title of this thread i immediately though ..... man out your cigar out. But yeah check and make sure everything is tight

02-18-2011, 12:00 PM
I believe I have found my issue. I pulled my trans last night and while i was under there i looked to see if I could find the leak. It appears to be the oil pan gasket. the block is dry as a bone but at the oil pan gasket and below is soaked with oil. Must have been hitting the Y pipe and smoking.

What is the torque spec for the oil pan bolts? I'm getting a torque wrench this afternoon to make sure they are tightened to spec.

02-18-2011, 11:41 PM
this is a good thread for the song talkin song repair blues .......

"Your torque converters low on torque and your water pumps nearly down a quart." hahahaha

02-28-2011, 10:57 AM
Well I hope tightening the oil pan bolts sealed it up. Its hard to tell considering i still smell it on the exhaust. A few more weeks maybe then I can get it on a lift and check again.