 mahlmann
"3rd Year" Silver Supporting Member
Posts: 480
Loc: Sunnyvale, CA
Reg: 01-20-11
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 07-30-12 06:31 PM - Post#2253951
Does anyone here have this product installed on their car? It only works with automatics and not on the convertible. It replaces the original master cylinder with a "bolt-in" dual circuit power brake booster that installs on the stock K frame member but I can't figure out how it goes in. Since it didn't come with any instructions, I'm not sure I even got the right part. I'd really like to see a picture of one installed so I can see what I have to do.
Thanks folks.
Mike Ahlmann
Sunnyvale, CA
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 bobg1951chevy
"6th Year" Silver Supporting Member
Posts: 4879
Loc: Ellijay, GA
Reg: 02-18-08
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07-30-12 06:42 PM - Post#2253961
In response to mahlmann
Does anyone here have this product installed on their car? It only works with automatics and not on the convertible. It replaces the original master cylinder with a "bolt-in" dual circuit power brake booster that installs on the stock K frame member but I can't figure out how it goes in. Since it didn't come with any instructions, I'm not sure I even got the right part. I'd really like to see a picture of one installed so I can see what I have to do.
Thanks folks.
Have you called Jamco? Their product should have instructions, right?
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 davidchristopher
"4th Year" Gold Supporting Member
Posts: 1660
Age: 42
Loc: Saint George, Ontario, Ca...
Reg: 08-02-09
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07-30-12 08:25 PM - Post#2254027
In response to bobg1951chevy
http://www.jamcosuspension.com/products/productID/...
I tried one out - it wasn't from Jamco, and I got it really cheap. It bolts in where the M/C is meant to go, but from there you've gotta bend / cut / mutilate the brake arm for it to fit.
1951 Chevrolet Styleline Special. (350 4 Muncie '55 Driveshaft CE crossmember Heidts Mustang II front suspension, 3:10 Posi)
The '51 Chevy Blog
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 DZAUTO
Dedicated Enthusiast
Posts: 6999
Loc: Mustang, OK, USA
Reg: 12-25-99
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07-30-12 09:16 PM - Post#2254036
In response to mahlmann
You don't bother to say what year you car is (I never understand why people do this), but if it is a 49-52, you can do a much easier SLIGHT upgrade/improvement by installing a 53-54 master cylinder. The 53-4 MC has a slightly smaller bore, thus slightly less pedal pressure is required.
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DT711
Forum Newbie
Posts: 9
Reg: 02-26-12
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07-30-12 09:46 PM - Post#2254041
In response to DZAUTO
i installed the kit. i will try to get pictures tomorrow. i had to slightly trim the k member to get it to fit right. also have to modify the brake lines, make sure to bench bleed the master
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mahlmann
"3rd Year" Silver Supporting Member
Posts: 480
Loc: Sunnyvale, CA
Reg: 01-20-11
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07-30-12 11:17 PM - Post#2254061
In response to DZAUTO
Forgot to specify my car is a 1950 Styleline Deluxe station wagon (tin woodie). I'm replacing the stock motor with a mildly-built 235 and my wife wanted an automatic so we're going with a '54 PowerGlide. I'm not real happy with the non-power brakes on our '58 so I wanted to make this one stop better.
Mike Ahlmann
Sunnyvale, CA
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mahlmann
"3rd Year" Silver Supporting Member
Posts: 480
Loc: Sunnyvale, CA
Reg: 01-20-11
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07-30-12 11:21 PM - Post#2254062
In response to DT711
Thanks for your reply. I'm really glad to find someone who has done this installation. It did NOT just drop into place so I'm not surprised it needs some tweaking.
Thanks for any tips and information.
Mike Ahlmann
Sunnyvale, CA
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mahlmann
"3rd Year" Silver Supporting Member
Posts: 480
Loc: Sunnyvale, CA
Reg: 01-20-11
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 08-03-12 11:28 PM - Post#2255533
In response to bobg1951chevy
JAMCO does have installation instructions for this unit but they were not included with my shipment. The unit I received was for a disk/disk setup but I ordered the drum/drum version. After a few telephone conversations with James, we got it sorted out. The instructions are not very complete and lack a "plumbing" diagram for my drum/drum configuration. I'm also waiting for instructions on mounting a brake return spring. It seems that I'm the only person who asked about this on an early Chevy.
I'm going to suggest some changes and additions to their instructions that should make it easier for the next guy.
I'll let you all know how well it works when I get done.
Mike Ahlmann
Sunnyvale, CA
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Chevy Tin Man
Forum Newbie
Posts: 56
Age: 68
Loc: Plant City, (Tampa) FL
Reg: 02-07-12
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08-04-12 06:07 PM - Post#2255766
In response to mahlmann
MIKE, another thing you will have to do is turn the brake pedal pad mount 180 degrees. If it's like mine it put it to close to the accellerator. I had to do all new lines, move the exhaust pipe over. It was a bunch of work but good in the end.
GOOD LUCK, STEVE
You will need residual valves too.
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Edited by Chevy Tin Man on 08-04-12 06:09 PM. Reason for edit: No reason given.
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mahlmann
"3rd Year" Silver Supporting Member
Posts: 480
Loc: Sunnyvale, CA
Reg: 01-20-11
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08-04-12 07:04 PM - Post#2255788
In response to Chevy Tin Man
Thanks for the tip. I haven't mocked everything together yet except for installing the metal frame everything bolts to. I have to make up new brake lines all around anyway since I'm upgrading to '53 Bendix brakes, and they are 1/4" instead of 5/16".
How and where did you connect the brake return spring?
Mike Ahlmann
Sunnyvale, CA
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