How do you get this apart? FINAL UPDATE 3/28

[MVRCorp]

I checked the service manual but they go from pulling the master to taking it apart. What I want to know is who you get the actuator rod out of the master.

[Dart67]

Should be just a push in fit with I think an O ring. They tend to get corroded due to dis-similar metals, which makes it very hard to seperate.

Herb

[abodyjoe]

i agree.

[MVRCorp]

Guess I need a BFH 

[MVRCorp]

Didn't work..... ......die grinder's next. 

[moparrr07]

put it in a vice and yank it as hard as you can, new rubber incert needed

[jbarker]

Ya gotta pulll REALLY, REALLY HARD.  Or, try to secure the master cylinder side in a well padded vise, and then fashion youself a poor-man's slide hammer with a length of chain clipped to the pushrod and beat on a loop of chain with a sledge.  Got to apply some pretty strong force to separate that stubbourn thing.
-Jay

[satellite65]

Just went through that myself not too long ago. Had me scratchin my head for a while.
It's just the rubber retainer holding it in. Yea....that S.O.B.'s ON THERE - Gotta pull REAL HARD!

[MVRCorp]

OK...picture this.....sitting on the steps, big screwdriver through the eye and between the feet, yanking as hard as I can and nothing. I was about to reload and try it again when I realized I had been here before. Every time I have second thought about doing something and ignore it, I wind up regreting it.

Next thought was this master flying off and hitting me in the nuts..................Die grinder worked nice.    I think I can reuse the rubber too.


Now if I can figure out to get this thing back together I'll be good to go.

[Winter]

     Hi, I put the rod in a vise, with the core up and close enough to the jaws to wedge a 1/2" or a 9/16 open end box wrench (protect the parts with something). The rubber washer inside is straight edged so it grabs pretty tight, but cant resist the force of the prying. If you assemble the rod with 2, O rings instead of the washer you can pull it apart easier , for off road purposes.

[eldubb440]

OK...picture this.....sitting on the steps, big screwdriver through the eye.........

 

wasnt sure where this was headed.........

[farmington]

best way is with the m/c still in the car.  loosen the attaching nuts to the m/c about 3/8"  put a 3/8 shim between m/c and firewall.  go inside car and yank upward on brake pedal.  Usually works pretty good. 

[MVRCorp]

Now that sounds like the best idea yet. Good "future info".

[75Dart440]

best way is with the m/c still in the car.  loosen the attaching nuts to the m/c about 3/8"  put a 3/8 shim between m/c and firewall.  go inside car and yank upward on brake pedal.  Usually works pretty good. 

Also......before yanking up on the brake pedal, get under the dash and loosen or better yet, remove the brake light switch.  If you don't you'll end up bending the brake light switch bracket.  I did this recently and it drove me crazy trying to figure out why my brake lights wouldn't go out.  Ended up having to remove the bracket and place it in a vice for straightening with the BFH.

[Duster440]

This technique was mentioned in one of the mags once:

Another way to remove the pushrod without destroying the piston is to remove the pad from a hydraulic floor jack, drop the pushrod down through the hole, place a rod through the pushrod bolt hole that is wider than the jack frame, then raise the jack. The rod will pull out of the piston.

[MVRCorp]

OK, In case anyone wants to know what is inside this critter, here it is, thanks to my die grinder. Guess the up side is I can re-use the rubber. 

[satellite65]

That little piece of rubber is one royal pain in the ass. (but a very important one)

[Winter]

Man, are you guys off the wall with your techniques, PRY it out with two open end wrenches, against the internals. Remove the C-clip and pull out rod with internals, clamp the ROD close enough, in a vice for the wrenches to work. This is what you will find on the instructions with a replacement part along with a diagram of what I just described. This is the fastest way, and I hope you verify this at your local parts counter, by asking to see the part (m/cyl.) and READING the instructions. 

[coors00]

Re-builds don't come with the quasi-o-ring

[BigShoulders]

Next thought was this master flying off and hitting me in the nuts..................Die grinder worked nice.    I think I can reuse the rubber too.


Now if I can figure out to get this thing back together I'll be good to go.

wunder if you can reuse your nuts

[MVRCorp]