Re: Ultramatic low range disengaging

Posted by ulrich On 2010/10/13 12:59:51

Hi Tim.

I took a look on the hydraulic schematic and I also think the timing vale will be the problem in conjunction with a badly adjusted linkage. When the low range disengages the pressure is removed from the low range piston suddenly. It seems there is a hydraulic valve shifting and directing the pressure from one to the other side of the low range piston.
The pre-owners did not care about the problem and the exessive oil leakage. When they owned the car there was still warranty on the gearbox. Now not any more.
I don`t think the company that did the overhaul on the gearbox is experienced on oldtimer parts and the one who installed it on the car did not know how to adjust the linkage. It is absolutely misadjusted and the carburetor rod is bended.
According to the manual you need aspecial tool for adjusting the throttle cross shaft. I tried to find out the dimensions of this tool but I had no sucess.


I put my car into the database. Unfortunately the picture upload did not work. I think the picture was too big. I will take a new picture with a lower resolution and put it in the databse.

Thanks.

Uli