Re: 1950 327 with Ultramatic - Idle Speed

Posted by JeromeSolberg On 2023/2/4 14:53:54

I have a 1953 with a different linkage, so it's hard for me to tell whether this is right or not. The main thing here is at idle the lever at the transmission should not be forward, which would put pressure to engage the clutch. I guess to be sure, for the purpose of setting the idle, you could disconnect the linkage and make sure the lever is all the way to the rear at the transmission.

My only other thought, is that one wonders if your transmission has a different, more viscous, fluid in it than "Type F" which is the closest they make to what was originally used. That might make the torque converter "drag" greater. Do you feel a significant "clunk" when shifting at idle. That is a sign the idle speed is too high and/or the torque converter drag is for some reason greater than normal.

Or again, it could simply be that, say, your fast idle isn't disengaging or something else at the carburator.

Again, there are other folks who have more experience than myself in this matter.