Re: Rebuilt carb issues

Posted by Jim Kavanagh On 2018/8/30 0:42:23

Thank you for the info David.

I will try oiling the throttle shaft to see if that helps. I am in 70 degree weather, so I detached the arm from the throttle to the choke. It did not seem to make any difference to the failure to return to the idle stop.

I pulled the plugs, and they are quite dark, showing a rich mixture, but i think this is mostly due to a lot of idle time - it seems unlikely that the carb is flooding at higher revs. I reset the mix screws with a vacuum gauge, so I think this will help.

I took the carb off (again) today to re-adjust the float,as that seems to me to be the only way to adjust the fuel mixture. But at this point (I have done all the adjustments a number of times) it dialed in as close as I can make it. so i didn't monkey with it.

The car still performs poorly at speed. It winds out fairly well in first, but makes more noise than power at the higher revs in second. Not a miss, just a lack of power. I haven't really gotten it to speed in third because it runs poorly enough that I don't want to take it on the highway.

Reverified the timing, at 6 degrees BTD, and I verified that the the advance appears to be working upon acceleration. Vacuum gauge also showed the timing dialed in. Ha always run well at correct timing, but it does act a lot like my Plymouth flathead when the timing is off.

running out of ides here.