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11-26-2019, 09:21 AM | #1 |
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Location: Knoxville, TN
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Master Cylinder Mounting in 32' Frame
So, I have been tinkering with mounting a master cylinder in my 32' roadster frame. Im trying to find the easiest way possible. I made a mount out of wood to test and see if i need to make any mods once the pedals are installed. It would share the 3 bolts that hold the pedal bracket and pinch the frame. I know i will need to weld a post on the brake pedal to activate the push rod going into the the cylinder. If this works out, then i will just make one from steel...Do you guys see any reason why i shouldn't do it this way.
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11-26-2019, 09:32 AM | #2 |
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Re: Master Cylinder Mounting in 32' Frame
It's best to get the master cylinder up as high as possible, while still clearing the bottom of the K member. If you have it too low the lever on the brake pedal ends up a bit long and you lose leverage on the pedal. there was a thread on this recently, but it may have been on the hamb. I'll see if I can find it.
Edit: try this. page 7 has some master cylinder discussion. https://www.jalopyjournal.com/forum/...-build.1157996 Mart. Last edited by Mart; 11-26-2019 at 09:51 AM. |
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11-26-2019, 09:37 AM | #3 |
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Re: Master Cylinder Mounting in 32' Frame
That should work!
There is also a “flat plate” design that simply bolts to the back of the K member using another plate as a spacer and it uses original holes. I used one of these, very simple and works well. I still had to move the small arm on the brake pedal. I’ll see if I can find a picture. |
11-26-2019, 10:33 AM | #4 | |
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Re: Master Cylinder Mounting in 32' Frame
Quote:
I was thinking keeping as high as i could on the bracket (pic). I need to bolt this up and see how the stars align. I was going to try to keep the filler nut close the the "K" member, just enough room to get the nut off. Again, that roadster post is great! |
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11-26-2019, 11:52 AM | #5 |
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Re: Master Cylinder Mounting in 32' Frame
Rotated looks better to my eyes!
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11-26-2019, 03:25 PM | #6 |
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Re: Master Cylinder Mounting in 32' Frame
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It has worked fine for the last 45 years. Charlie Stephens |
11-26-2019, 05:03 PM | #7 |
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Re: Master Cylinder Mounting in 32' Frame
This is my favorite MC set up in a 32 frame. Use stock pedals, modify the brake rod center pivot.
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11-26-2019, 05:27 PM | #8 |
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Re: Master Cylinder Mounting in 32' Frame
Tom,
That is a real clever arrangement! One I've never seen. Mart's design looks great too. Rick, I think you are thinking about mounting under the stock clutch/brake bracket? This would raise the pedals up and not sure about other impacts that might cause. I would mount on the back of the center-section like above and the way I did it, https://www.fordbarn.com/forum/showp...5&postcount=45 I also came across this thread yesterday, a 32 pickup that Dennis Lacy is building. It shows their design and kit for the brakes: https://www.jalopyjournal.com/forum/...#post-11039172 Glenn |
11-26-2019, 06:14 PM | #9 |
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Re: Master Cylinder Mounting in 32' Frame
About 20 years ago, I started working on my long stored Corvette and as work proceeded in fits and starts so I decided that as a diversion, I'd start playing with building an A with a V8 based on the Bishop Tardel book. Lots is based on '32 parts and my brother had his '32 lying in the garage as a pile of parts. So, I pushed aside the A dream and dragged out the '32 parts and put it together again. The mechanical brakes had been tossed back in the '50s so hydraulics were necessary. I mounted the master cylinder ala Bishop Tardel and made a new brake pedal out of 3/8" plate steel to get the pushing arm. It turned out that the pedal to master cylinder leverage ratio was 4:1 instead of a universally recognized optimum 6:1 ratio. Stopping isn't quite what I had hoped for. Well, he's got the car now and I'm at last working on my A. I had bought a nice '32 K member but I didn't want to wind up with the same issue and I wasn't keen on cutting up the K member to fit the A frame. So, I laid out and welded up my own K member but I got the Mustang master cylinder way up "into" the K member instead of under it. Let me see if I can find my photos.
OK. Here's a link to an album in my profile page. https://www.fordbarn.com/forum/album.php?albumid=690 I also made up a "low profile" pedal bracket that leaves the pedal shaft in the same position as a '32. Also made up new brake and clutch pedals. When I started on this, the late Bruce Lancaster shared with me a whole bunch of other's ideas using bell cranks, putting the master cylinder in behind one of the legs of the K member. But, alas, he's gone with all that knowledge...
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Don't never get rid of nuthin! Last edited by PeteVS; 11-26-2019 at 06:31 PM. Reason: Added link to pix... |
11-26-2019, 10:48 PM | #10 |
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Re: Master Cylinder Mounting in 32' Frame
Tom,
That is one of the slickest conversions I have seen as well! Puts the MC away from a dual exhaust set up also! |
11-27-2019, 08:05 AM | #11 |
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Re: Master Cylinder Mounting in 32' Frame
Some really good ideas...I like the one using part of the mechanical brakes...Genius!
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11-29-2019, 09:32 PM | #12 |
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Re: Master Cylinder Mounting in 32' Frame
Check with The Early V 8 Garage in West Covina California, they make a bolt in kit that works like a charm. No welding ( YIKES !!! ) on the brake pedal either. No drilling , total bolt in and every bit and piece nut and washer provided.
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Early Ford Lock & Key Service https://www.fordbarn.com/forum/showthread.php?t=46583 |
11-30-2019, 01:24 PM | #13 |
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Re: Master Cylinder Mounting in 32' Frame
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11-30-2019, 02:28 PM | #14 |
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Re: Master Cylinder Mounting in 32' Frame
I had a chassis that used a spare brake rod center pivot but mounted it to left of center on the backside of the K member, used the original pedals and put the master cylinder on the front side of the K on the left side along the frame. I liked it because it kept the mc under the drivers feet. Seemed to use all stock holes and kept the original e brake. While I realize this is about early Ford parts if I was going to all the work I'd use a dual MC.
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