'48 Hydramatic Questions

[vicbrincat]

Todd's post has now encouraged me to put in my own hydramatic question...

I installed a rebuilt transmission on my '48 and made all the TV  adjustments according to the manual.
The transmission shifts okay...at leasts it seems to. But there is no kick down...nothing happens when I push down the accelerate...even all the way down....it just stays in the same gear.

Where should I make the adjustment? at the carb throttle or at the linkage that pivots on the transmission bell housing?

Any suggestions short of taking to a transmission shop?

Vic

[TMoore - NTCLC]

Vic -

I have found that very subtle (I am talking abut 1/8 turn) adjustments at the linkage on the carb will correct most of the shift points, including the kick-down point.

Doug or Bill will chime in with better information, but that is where I would start.

[Bill Ingler #7799]

Hi Vic: Tod is correct. Your problem could be the adjustment of the linkage. Here is the adjustment procedure out of the book. See if this helps.   Bill

[Bill Ingler #7799]

Here is another area to check. I had the same thing happen to me on my 47. Followed the book on adjustments but still when I pushed the pedal to the floor, no passing gear. The problem turned out to be ME. In my quest to put a heat barrier under the carpet plus padding, I had too much of everything so the pedal was not going down far enough. Removed the obstruction and worked like a champ. So make sure when you push the pedal all the way to the floor, you are getting full throttle at the carb.

[vicbrincat]

Thanks all.... I will read and follow your recommendations!!

Vic

[Art Gardner CLC 23021]

On my 49, I was frustrated that I could only get a kickdown from 4-3 and that all of the other downshifts were by speed.  In the end, I learned that it is supposed to be that way.


Maybe you are experiencing something similar.