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07-06-2021, 04:18 PM | #1 |
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What MC do I have
I pulled my original MC off of my 57 station wagon and cannot find a replacement. Everyone I look at or see has a bolt pattern spacing of 2". I need on that has 1 7/8", I have manual brakes. I just don't want to have to punch two more holes in the firewall that already has way to many holes in it.
Mike
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1930 TownSedan (Briggs) 1957 Country Sedan |
07-06-2021, 07:26 PM | #2 |
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Re: What MC do I have
Without seeing the whole thing that somewhat also resembles 58 to 61 Chevy car.
Raybestos MC18000 If it is manual brakes the bore is probably 1". If power brakes it may have 1 1/8 bore. Last edited by Sid; 07-06-2021 at 08:44 PM. |
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07-06-2021, 08:24 PM | #3 |
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Re: What MC do I have
I have a 57 convertible that had manual brakes (converted to power) and a 57 retractable that did as well. Both have a horizontal mount bolt spacing of over 3 inches center to center where it mounts on the firewall. Are you measuring something else?
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07-06-2021, 08:30 PM | #4 |
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Re: What MC do I have
Can't be 2 inches, your MC bore is at least 7/8" and from the pic your bolt holes are around an inch outboard of the outer edges of bore. So looks closer to 3 inches like mine..
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07-06-2021, 08:34 PM | #5 |
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Re: What MC do I have
You must mean vertically between the mount holes. Both of mine measure 2" there...
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07-06-2021, 08:38 PM | #6 |
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Re: What MC do I have
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07-06-2021, 09:59 PM | #7 |
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Re: What MC do I have
Unknown Master Cylinder? |
07-06-2021, 10:14 PM | #8 |
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Re: What MC do I have
Here are some side shots.
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1930 TownSedan (Briggs) 1957 Country Sedan |
07-06-2021, 10:24 PM | #9 |
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Re: What MC do I have
Sorry, I measured vertically. At the T Bird store someone mentioned they remember seeing an oddball MC on 54/55 fairlane. If I have to replace it, then I have to replace the support brace as well. So I may just go with a dual MC and replumb the brake lines at the MC. I am running manual drums all around.
Mike
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1930 TownSedan (Briggs) 1957 Country Sedan |
07-06-2021, 10:50 PM | #10 |
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Re: What MC do I have
To my knowledge Raybestos MC18000 master fit many year ford including 54-59 and more. It has a 1" bore. Is it rebuildable? What's the chance one of your mounting studs has a slight tweak? I wouldn't think that even Ford would use the same cylinder for many consecutive years and suddenly throw an odd ball in the mix.
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07-06-2021, 11:49 PM | #11 |
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Re: What MC do I have
IDK... I have the identical one here and a power brake rebuilt 1 1/8 bore MC unit as well that came from Kanter. Both these do have the 1 7/8 center to center vertical bolt holes though, just like yours. I would think those are as common as grass, but maybe the supply has dried up since most go to a 2 bolt dual MC anyway.
I would just go dual MC, but if you want to stick with the original I would think Kanter or Mac's could still fix you up. Or kit yours.. Worst case that kit should still be available. I have one here still in a box (Kanter also) for a 7/8" bore but it may be older than my dog now.. |
07-07-2021, 12:11 AM | #12 |
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Re: What MC do I have
I have a bunch of 57 and 58 stuff, including multiple brake hanger brackets and they are all identical.
Sid may be on to something cuz we are talking 1/16" difference per hole (.0625) and those brackets are not exactly square on the end, plus the holes are likely oversize to begin with to allow for a bit of parts fitment flexibility. I would bet any MC from a reputable supplier that says it fits 57-58 as original will fit. |
07-07-2021, 12:34 AM | #13 |
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Re: What MC do I have
I will try Kantors tomorrow. According to one of the vendors the 2" version is 52-59 and mine is 57-59. I would rebuild mine but it needs to be bored out a smidge and I can't do that. I will try to find a local shop that will do it if not, Kantors it is. Boy I hate having a unique item at times....I will eventually go PB with disk up front but it just isn't in the cards right now.
Mike
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1930 TownSedan (Briggs) 1957 Country Sedan |
07-07-2021, 08:35 AM | #14 |
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Re: What MC do I have
IDK... I have the identical one here and a power brake rebuilt 1 1/8 bore MC unit as well that came from Kanter. Both these do have the 1 7/8 center to center vertical bolt holes though, just like yours. I would think those are as common as grass, but maybe the supply has dried up since most go to a 2 bolt dual MC anyway.
Generally a power brake equipped system will have a slightly larger bore. I have a couple 56 parts cars and going to check those masters for their bolt spacing. I'm just wondering if You may have a Canadian built car? |
07-07-2021, 08:54 AM | #15 |
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Re: What MC do I have
Just FYI -
FOMOCO call for one MC for 1955/56 and another for 1957/59. There are two for 1957, MB (1") and PB (1 1/8"). Do not trust aftermarket vendors. Only GOD knows what they will pass off. Your best bet (IMO) is to have yours sleeved and professionally rebuilt. DO NOT trade that one in as a core. It will be worth something to somebody. CARDONE advertises one MC for 1955/59. I don't think so. From the looks of that piston, the entire system needs to be flushed and the wheels cylinders done also.
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07-07-2021, 10:17 AM | #16 |
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Re: What MC do I have
I think the key is to look for the casting # on yours (AJ2155A). There are a couple used ones on evilbay and one seller happened to lay a tape across the vert. bolts and it is less then 2". Another seller said his came from a 58 Skyliner. Here is the ebay link to the one.
For some reason the Ford calls for a part number B7A 2140 but then there is your casting number. I'm just wondering if it may be a Canada master? Kultulz is correct. Cardone and Rock auto are wrong. I checked vertical bolts on a 56 and they are at least 2 1/4 center to center. I checked the Hollander. Master is # 114. Applications should be as follows 58 Edsel Ranger and Pacer 59 Edsel 57-59 Ford pass. and s.d. except T Bird 1957 Lincoln. These are all w/o power brakes. https://www.ebay.com/itm/29286649518...sAAOSwqxdcAF6u Last edited by Sid; 07-07-2021 at 10:56 AM. |
07-07-2021, 12:46 PM | #17 |
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Re: What MC do I have
My car was built in Norfolk, VA in June of 57. Maybe it , ah who knows. Ford did some weird stuff back in those days. My Model A has one off splash aprons and fenders that made for only Like three months before reverting back to the previous version.
I will try and find a shop to sleeve this one or buy a rebuilt and keep mine. And yes K the whole system is getting replaced. This car was beat up really badly and I don’t trust nuthin on her. Thanks everyone for your help. I am getting closer to putting parts back on her! Mike
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07-07-2021, 01:22 PM | #18 | |
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Re: What MC do I have
Quote:
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07-07-2021, 06:53 PM | #19 |
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Re: What MC do I have
Update, my local NAPA was able to track down a MC for me that matches.
Mike
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1930 TownSedan (Briggs) 1957 Country Sedan |
07-07-2021, 08:25 PM | #20 |
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Re: What MC do I have
Did they figure out why the strange part number?
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