model a transmission tower

[reggiedog]

1930/31 Model A Tower

Does anyone know why one of the detents in the tower of a late 31 Tudor Sedan are hard to slide the big detent is easy to slide but the small detent, you can barely move it without hitting it with a hammer is there a reason for this I know it's in correctly as the big one goes next to the bolt holes.

To put it on the E brake to the transmission and the small one goes in the other hole at the end of the spring hole so am I doing something wrong here, I don't have the pins in as of yet but I do have a nail in there to test it out and you just can't shift it.

What's wrong with it I know that the spring is in there correctly and all I'm going by the Les Andrews Red Mechanics Book the first one Let me know what I'm doing wrong here ASAP.

I have a all original tower except for the spring ends and springs as the sifting spring is new and so is the detent spring with a round the ends on it, and the shift forks and the detents rails are all originals and yes the sifter itself I had re-plated to the original butler nickel as I'm going for a show car.

And the detent rails, sifter and forks aren't worn as everything has been welded up to specs and there all in the right places in the transmission tower, as I'm going by the book on this at first we thought it was that it wasn't greased but that didn't fix it that just made a mess of it.

Reggiedog

[GRutter]

By big vs small detent, I am assuming you are speaking of the spacing between the detents, as the detents themselves should all be the same size.

Are these new shafts, or original? Are the balls on the ends of the detent bullets nice and round, or are they worn?

Check the shift fork positioning to be sure that when you are trying to move one shaft that the other shaft's detent bullet is "in the groove".

Picture attached shows worn detent bullet- if the bullet is worn and turned 90 deg to the way it used to be oriented it can be tough to get it to move.

[GPierce]

This solved the problem for me.
http://www.santaanitaas.org/wp-conte...estoration.pdf

[Brentwood Bob]

I did a series (4) on the tower rebuild.
https://m.youtube.com/watch?v=BCIpZuxoLpQ
Should walk you thru the reassembly in number 4.

[nkaminar]

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As GRutter asked, are the shafts new? If old, are they in good shape?

The detents are designed to be operated with the shift tower mounted on top of the transmission by the shift lever. The shafts will not be easy to move by just pushing on them. To test, hold the shift tower in a vice and move with the shift lever. Or screw the shift tower to your wood bench with some lag screws.