Master cylinder conversion help needed

I took off the old m/c because it is leaking badly and am planning on adding the dual chamber m/c kit from Herm. I have everything I need, but here is the problem.

I have to remove the steel plate inside the frame that supports the clutch tube shaft. I chiselled the rivets off on the bottom side. Beat the snot out of them to try and push them through. NO LUCK. Air chisel would not work either. What am I gonna do? Any ideas? I am about to order the replacement single chamber m/c and be done with it.

Thank you for your help.

 

drillbits and time is the answer. I'm sorry to have to say that.

 

Wrong forum too I might as well go to bed...

 

Try heating them up red hot and throw a glass of water on it, the thermal shock should beak it loose. It worked like a charm on my shackle mounts.

 

How about having a or many? sure does make my bad days better.

 

Nope, I went to bed. Woke up with the same problem

I decided while under there to try to drill them out. All I was doing was turning what used to be a round hole into a lovely egg shaped hole. Should I keep going or order the original style?

 

Dennis,
I don't know if this will help, but I had to remove the old bent up front bumper off mine. It was riveted on too. Chiseled the first one off and it deformed to the side away from the chisel. Couldn't get it out for nothing. Ended up grinding till I got a round rivet again, drilled the center and punched it right out. The rest I ground down first (no chisel), drilled, and punched. :v6:

 

I did grind the rivets / plate before using a puch and hammer. When that didn't work, I went to the drill and that's where I am. I dunno...

 

How about a sort of scale drawing?

 

Dennis,
I drilled a hole all the way into the head on the other side and it was pretty big, <1/32" concentric away from the edge.:v6:

 

I tried the air chisel on the bracket and it didn't budge. Led me to believe the bracket is welded. may not be though...

I will keep drilling. Worst case is I say the hell with it, weld it back up and replce with an original

 

I agree with Grannyscj. Those rivits are a mother! Grind the heads off smooth and flush, center drill them nearly as big as the hole they are in and they should come out. It was hard enough doing the ones on the front bumper that I could actually get to, I can imagine what it's like under the Jeep.....

Good luck.

 

When I took off my front bumper, I ground down the rivets and tried to use a punch. I think the flex in the frame took away some of the sting of the hammer blows. I ended up using a C-clamp and appropriate sized sockets top and bottom to press the rivet remains through. It was awkward, but it worked.

 

I removed the tube shaft support a few months ago to make room for a dual reservior setup. I ground the rivet heads flush from underneath, drilled a small hole in the center of each rivet, heated it up with a torch, and punched it right out with hammer and punch. left me with 2 perfectly round holes in the frame. maybe i just got lucky? also, on mine, the tube shaft support also had a weld holding it to the frame. make sure you grind that weld off before going at it with the chisel.

by the way, nows the time to replace that crappy sheet metal tube shaft support with a nice, heavy, bronze bushed, bolt on, cast piece from an M38A1. Here's a pic....

http://members.verizon.net/w3srl/Bracket.jpg

 

linc-

what did you heat up, the plate or the rivets? Also, where was the weld on the plate? I'm hoping it is on the exposed side

 

the welds were underneath, on the bottom side. they were crappy looking welds. i wouldn't doubt if some jeeps came through with more, and better welds, and some came through with no welds at all.

i heated up the rivets one at a time. i did this with the frame off the body, so i had a much, much, much easier time then you will - i'm sure. but nonetheless, my approach would be the same - body on or off.