Amskeptic wrote:Do not focus upon components that work correctly when warm. Components that are designed to work when cold are your issue. Have you tried the various accelerator positions during first start 1/4 to 1/2 way, did you say?
We have a poor atomization of cold fuel and inadequate air and only unlikely maybe an ignition system that is not quite healthy enough when cold.
Colin
Colin
Thanks again.
The weather finally seems to be staying warm here - so my issues are fading and hard to tell improvement from my changes from improvements due to overall temperatures going up ... might even hit 65F today ...
Ignition is stock (points), but all parts new within the last 12 months - points / condenser / plugs / cap / rotor etc new this winter. Sparks from lead and plugs are all bright blue
I have richened up the idle / start and increased the air flow via idle and start is better ... combined with a bit of throttle (about 1/2). For the last few days I can start without waiting 15-30 minutes ... usually fires second try, sometimes even get some spurts and cough's 1st try.
I re-checked the aux air by blowing through it and it's open when cold and closed when warm - so air is getting through there as well.
One seemingly
odd observation. I removed the Temp Sensor II to test it, and when I re-installed it I left off the washer that was originally between it and the head (about 1MM thick, because I dropped it and could not find it until later). All my AFM's are now 1+ "units" below before ... cruise from 14.6 before to 13.6 now... start from 11.5 to 10.5 etc. I ordered a new one, and will compare the two later (outside of car)