ZR-1 Net Registry Forums - View Single Post - Blue smoke puffs @ start-up...

Schrade · 06-22-2014

When I start up the motor, I see blue in the exhaust. Seems like it's lasting about 10 - 12 seconds, then stops. Car has 37k.

On the road, I unloaded a few times at dusk just today, and didn't see much exhaust in the headlights behind me - maybe some Black / fuel.

I never noticed this startup oil before, except after the front was on the ramps for more than a few days. That I figured was from being '90 w/o valve stem seals (???). Pooled head oil was draining to #'s 7 + 8, and pulling through the burn?

Is it possible that OEM exhaust was absorbing some of this oil? (and it's always done it?) And only now, with headers + straight 3" tubes, it's showing more easily?

Ideas?

06-22-2014	#1
Schrade Join Date: Dec 2012 Location: NC Posts: 1,783	Blue smoke puffs @ start-up... When I start up the motor, I see blue in the exhaust. Seems like it's lasting about 10 - 12 seconds, then stops. Car has 37k. On the road, I unloaded a few times at dusk just today, and didn't see much exhaust in the headlights behind me - maybe some Black / fuel. I never noticed this startup oil before, except after the front was on the ramps for more than a few days. That I figured was from being '90 w/o valve stem seals (???). Pooled head oil was draining to #'s 7 + 8, and pulling through the burn? Is it possible that OEM exhaust was absorbing some of this oil? (and it's always done it?) And only now, with headers + straight 3" tubes, it's showing more easily? Ideas?