car smoking
Thread Starter
Instructor
Joined: Nov 2004
Posts: 170
Likes: 0
From: Palatka Florida
car smoking
I have a 91 vette, nothing changed internal, just superram and bolt ons as in headers, msd ignition, 58 mm tb, etc, i have true duals on the car, well on the right side the car is smoking what im about positive to be oil, the left side is fine, im thinking the best place to start is a compression check, oh and the car just hit 100,000 miles, any advice would help, thanks
Last edited by GrtWht91; Jun 27, 2007 at 09:42 PM.
Thread Starter
Instructor
Joined: Nov 2004
Posts: 170
Likes: 0
From: Palatka Florida
Race Director
Joined: Feb 2004
Posts: 12,518
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Thread Starter
Instructor
Joined: Nov 2004
Posts: 170
Likes: 0
From: Palatka Florida
Melting Slicks
Joined: Feb 2004
Posts: 3,307
Likes: 111
From: Tucson AZ
Petes right. A leakdown test on each cylinder at TDC is the best method to diagnose it. You will need a regulated 90-100psi air source for the leakdown tester.
When you do it, listen down the throttle body (for intake valve leaking), then down the exhaust to see if the exhaust valve is leaking, and also through the oil filler cap (leaking around the rings).
Start with #1 and work your way through the firing order.
Record all your reading for future reference.
If all the cylinders are good, then he is also right about checking the intake gasket. They are notorius for slipping down slightly and allowing oil into the intake port and it is usually on just one side.
When you do it, listen down the throttle body (for intake valve leaking), then down the exhaust to see if the exhaust valve is leaking, and also through the oil filler cap (leaking around the rings).
Start with #1 and work your way through the firing order.
Record all your reading for future reference.
If all the cylinders are good, then he is also right about checking the intake gasket. They are notorius for slipping down slightly and allowing oil into the intake port and it is usually on just one side.
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