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Old 10-20-2020, 09:02 PM   #22
bbrocksr
Senior Member
 
Join Date: May 2010
Location: Yakima Washington
Posts: 913
Default Re: Fordomatic late shifting ('57 thunderbird)

Quote:
Originally Posted by yblock57 View Post
Excellent tip! If it has to come out again, that's what I'm doing.

I did get the NOS gov installed last night. Unfortunately it didn't make any difference in shifting. Still shifts at 33 mph regardless of kick-down rod adjustment. Removed it from the equation at least.

The NOS gov did NOT have a spring as several have mentioned on here. Installed without a spring and was hoping that would get me in the ballpark, but no dice.

Any suggestions on where to look next appreciated.

I know I need to get some pressure readings and have bought a gauge. Will run the tests and post back.

Thanks,
Kent
There is a bracket on the valve body that limits the outward travel of the throttle valve which controls minimum throttle valve pressure. Sometimes this bracket gets bent holding the valve in slightly raising the minimum pressure causing higher shift points and firmer shifts.
Bill
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