Thread: TH 400 help
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Old 02-28-2021, 08:30 AM   #7
Getter-Done
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Re: TH 400 help

Quote:
Originally Posted by lux View Post
I have the vacuum modulator hooked up correctly, but I don't know how to test it?
You have to educate me on the governor, I don't know anything about it.
I was under the impression that the kick down solenoid was what down shifted the trans.
Thank you.
There is a kit you can buy in the link below to (dial in) your Governor.
Mainly showing this for (An example) of operation.

Link: https://www.jegs.com/p/B-M/B-M-Trans...51474/10002/-1

This lets you tune your shift points.

If springs and weights are not working freely it will cause issues.







There is also an adjustable modulator you can buy, If you don't have one already,

Link: https://www.jegs.com/i/JEGS/555/6206...6%20Drivetrain

It has a screw in the end where the vaccum hose goes.
That screw is for (fine tuning) the shift points.
Which is not your current issue.
Once the shift issues are fixed this can help fine tune your shift points.






Here is the a link I found on testing the modulator.
So you don't have to read my (Long-winded) version
Link:https://itstillruns.com/test-th400-v...-12179298.html



Hope this helps









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