Re: 1955 Patrician - On The Road Again Journey

Posted by Ross On 2024/6/22 6:57:20

That bushing centers and supports the convertor relative to the rest of the transmission and is the flow path for fluid into the convertor.
As such it is pretty important. The nominal clearance between it and the convertor stub shaft should be .003". You will need to come up with some sort of arbor or maybe just a real big socket to push it out; it takes a lot of force and lets go with a loud grunt.

There are two issues with the sticking in Park problem. The root cause is that the little roller that pushes down the parking pawl travels too far and goes over center. That means that as you try and shift out of park the roller has to try and push the pawl yet deeper into the gear while the two are under load. That won't go.

There is a pin that holds the pawl spring AND serves as a stop for the roller. At this late date, it is often bent. The solution is make a new stop pin long enough to make sure that the roller can only push the pawl to its deepest travel and no further. That takes a bit of fiddling, but is not hard with the trans out.

The second issue has to do with the shift linkage geometry which in its natural state gives very unfavorable leverage in the Park position. There is a service counselor article about that which someone less easily frustrated by managing files can post here.