|
Exhaust Port Color
Im replacing the stock oil return tubes on my '83 SC motor and had to take off the heat exhangers. The color of the exhaust ports:
4 are white, white, white.
2 are blackend.
This bothers me. White means lean, Blackend means rich, no?
I have new Magnacore wires and fresh plugs on this motor. The motor is low mile, 70K+. The timing was set too-far advanced for awhile a few months ago, but I've toned it down quite a bit. It starts fine, it sounds great. Some questions:
Could poorly adjusted valves cause this?
I can't test the injectors because they have metal lines. Maybe run some Techron?
Any other advise?
__________________
'75 911S 3.0L
'75 914 3.2 Honda J
'67 912R-STi
'05 Cayenne Turbo
'99 LR Disco 2, gone but not forgotten
|