Oil smoke - ZR-1 Net Registry Forums

Z06scentair · 07-04-2014

Just got back in from Japan yesterday and decided to get the car out this morning.

Backed in out of the garage and let it idle for ten minutes before going for a ride. The car has not been started in a month.

Here is where the question comes in. When I got in the car to back up in the driveway, I touched the gas and a large puff of oil smoke appeared to come from both tailpipes. I revved the motor a few times and the smoke was gone. Left for my drive and everything seemed fine.

What could have been the root cause of the oil smoke?

LGAFF · 07-04-2014

if you ever pull the plenum you will see its coated on the inside with oil, might have pooled due to sitting....and then burnt off at startup

Z06scentair · 07-04-2014

Quote:

Originally Posted by LGAFF

if you ever pull the plenum you will see its coated on the inside with oil, might have pooled due to sitting....and then burnt off at startup

Yeah that's possible.

mike100 · 07-04-2014

The 1990 models don't have the viton (rubber) valve seals so they are known to puff a bit on hard accel. If you have a '90, totally explainable.

07-04-2014	#1
Z06scentair Join Date: Sep 2013 Location: Charlotte NC Posts: 655	Oil smoke Just got back in from Japan yesterday and decided to get the car out this morning. Backed in out of the garage and let it idle for ten minutes before going for a ride. The car has not been started in a month. Here is where the question comes in. When I got in the car to back up in the driveway, I touched the gas and a large puff of oil smoke appeared to come from both tailpipes. I revved the motor a few times and the smoke was gone. Left for my drive and everything seemed fine. What could have been the root cause of the oil smoke?

07-04-2014	#2
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: Oil smoke if you ever pull the plenum you will see its coated on the inside with oil, might have pooled due to sitting....and then burnt off at startup __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

07-04-2014	#4
mike100 Join Date: Feb 2011 Location: San Marcos CA Posts: 1,802	Re: Oil smoke The 1990 models don't have the viton (rubber) valve seals so they are known to puff a bit on hard accel. If you have a '90, totally explainable.