I have the later 26/27 Ruckstell P158C shift lock assembly, I need to remove the plunger, it is seized in position and also it appears there is a locking bolt broken off flush on body which looks like this keeps the plunger in position?
Does the plunger come out in either direction under a press or with a bit of force from hammer and punch, and is it okay to drill out the broken locating bolt to achieve this.
I will be corrected if I am wrong but, after the shifting yoke assembly and the plug and spring are removed you should be able to take the plunger out ether way. There is a pin that fits in the slot of the plunger to keep it from turning. It may have been riveted in place and never had a head on it in the first place. If I recall correctly the slot runs the full length of the plunger so removing the locating pin should not be an issue. I would however start by using a brass drift or piece of wood dowel and try driving it from inside out after soaking it with penetrating oil.
You might want to check with Glen Chaffin and/or Stan Howe. Lots of Ruckstell experience there.
It has been over a yr since I rebuilt mine, but the plunger only comes out the front (forward part of the car) and should slide out once you unscrew the plug. I am out of town right now, but will be home tonight and can pm you the instructions from Chaffin's manual. You can also do what Steve suggests and talk to Dave or Glen at Chaffin's Garage. The success of my rebuild would not have happened had it not been for the manual and Dave explaining things further for me. He is extremely helpful!
Thanks you all, It sounds right that it would be a pin and slot in the plunger, that is to stop rotation of the plunger and keep the roller inline. After thinking about it needs to move in and out with spring so it would not be a broken off screw head that I see. I will start soaking in penetrating oil and try to remove from inside to out. I just didn't want to breaking anything without your knowledge and comments of reassurance.
Chris, I just assembled mine a couple weeks ago and is still laying on the bench....If you need me to I can dis-assemble it and take some pictures.....I know I had to heat mine up and let it cool off to get the plunger out but it had sit outside for many years.....I sure yours won't be like that....It you need pictures let me know....Chet
Open this link near the last entries there is a good set of pictures should help
Gerald thanks for posting the link with photos with clarification on the slot in the plunger.
The slot shows that the plunger can only go one way....
Mine has been sitting around for over 40 years plenty rust.. Thanks Chet don't pull yours to bits.... I will use some heat.