46 Plymouth Clutch & Brake Pedal Pivot Pin

[tanner]

Replacing the master cylinder in my 46.  The pivot pin seems attached to the master cylinder and resists all efforts to remove it.  Don't want to mushroom the end with a hammer.  Are they pressed in and out?  After 73 years could mine be rusted in place?  Anyone have a suggestion for removing the pivot pin without involving a heavy hammer?  

[Jeff I indu]

When I replaced the master cylinder in my 49 chrysler I had the same issue. I had to take the old master cylinder to a shop and they pressed the pin out and then reinstalled it in the new master cylinder. I remember thinking why in the heck couldn't the new master cylinder come with the mounting pin already in place? It's probably a 2 dollar piece of steel. It's frustrating when a simple job morphs into a trip to a machine shop

[vintage6t]

You could try heating the collar that holds the pin. It may expand enough to slip the pin out.

[MarcDeSoto]

I got my pin out of my 48 DeSoto easily.  I put the MC in a vise.  Then I cushioned the end of the pin with some thick cloth and gently hammered.  It came right out and went into my new MC just fine.  

 

[tanner]

Thanks for responding.  I have the mc in a vise trying penetrating oil around the pin.  FYI, the $2 pin is now a $75 pin if you can find them on line.  Searched for it in case things went from bad to worse. Most likely I'm headed to a shop with a press if the penetrating oil doesn't loosen the pin.  I usually cap things like this with a thick walled impact socket to hammer on.  A deep socket will fit against the collar maybe start movement.  Holding the mc in place to hammer is the challenge.

Thanks for the help.

[tanner]

11 hours ago, tanner said:

Replacing the master cylinder in my 46.  The pivot pin seems attached to the master cylinder and resists all efforts to remove it.  Don't want to mushroom the end with a hammer.  Are they pressed in and out?  After 73 years could mine be rusted in place?  Anyone have a suggestion for removing the pivot pin without involving a heavy hammer?  

Hammer to fit; paint to match.

[Jeff I indu]

Tanner, 

I did the same thing with a vise and used a socket to beat on. I finally gave up out of fear of damaging or breaking the pin/master cylinder. The shop used a hydraulic press to press the pin out. I took quite a bit of pressure to get it to move. The other issue is reinstalling it into the new master cylinder. It took quite a bit of pressure to press it back in place. Only took them 10 minutes and they didn't charge me because for them it was a small job. But for me it was a huge relief. Maybe sometimes they can be knocked out with a vise, punch and big hammer but in my case and probably yours it's well worth taking it to a shop where they have a press that can do the job safely and easily. It worked for me.

 

Jeff