Master cylinder push rod

[tracy]

How does the rod come out of the master cylinder ?

 

[Fran Blacker]

It takes a real tug, you can't hold it and do it ffor the most part.

 

[pnora]

On the car I just unbolt it and pull it away from the firewall. Insert a block of wood between the master and firewall. Then pull up on the pedal.

 

[tracy]

So it pulls out ?

 

[pnora]

So it pulls out ?

Read what I posted.

 

[tracy]

Read what I posted.

I did, I'm not putting a block of wood on my car tho

 

[RemCharger]

I did, I'm not putting a block of wood on my car tho

Then unbolt the pushrod and take it to the vise.

 

[hunt2elk]

It's amazing how much force it takes to get that little rubber grommet out.

 

[65hemi]

The block of wood is just a temporary spacer to allow you to use the leverage of brake pedal to pull the rod out of the MC.
Wrap the wood in a rag to prevent damage to the paint, if that is your concern.

 

[Don67Satellite]

When I took my old MC off, that thing was in there real good. That grommet holds on for dear life. A few swings of the old hammer & she came out, but initially brought the piston and all with it. A few more swings and the rod was free.

 

[themechanic]

 

[blue69runner]

OMG after they have been in there for years it grows to the rubber. Good luck and give it hell.

 

[tracy]

Thank you

 

[RemCharger]

When I took my old MC off, that thing was in there real good. That grommet holds on for dear life. A few swings of the old hammer & she came out, but initially brought the piston and all with it. A few more swings and the rod was free.

That's actually a pretty important point,, I did one this summer that ripped the piston out,
And boy was there a splat of brake fluid everywhere. Be careful

 

[tracy]

That's actually a pretty important point,, I did one this summer that ripped the piston out,
And boy was there a splat of brake fluid everywhere. Be careful

Thank you

 

[themechanic]

I'm wondering if you ever solved the stuck pushrod problem.

 

[tracy]

Yes I did. Knock it out of the old master. Thank you

 

[70Chargers]

Fought getting the pushrod out of the rear piston today, no matter how hard I pulled up on the pushrod it just didn't want to come out, the rear piston is frozen inside the bore, yes there are a few different ways/methods and all the time honored methods work. Rubber doesn't like gas or acetone. Poured some acetone into the rear piston hole to submerge the rubber ring/retainer. I let it sit for about 1 minute, and within a few easy strokes of the pushrod it simply popped out 10 seconds later. Done! The rubber retainer/ring ripped apart as it released, and is now ruined, so have a new one to replace it if ever using this method. Use acetone or a torch only as a last resort, when all else failed -or- those times when don't have any access to a vice/jack/BFH might consider using as a first resort.