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MG MGB GT V8 Factory Originals Technical - Brake master cylinders
|Need some advice. I am not going back with the MG M.C. Mainly because of the price. I done a little research, I found a Vega M.C. and a Camero M.C. Both are about the same price range. Both are manual disc/drum set up. Which should I go with? I'm leaning toward the Vega one, because the weight of the cars are probably more simular. Any advice would be greatly appriciated. Oh ya, doing a chevy v8 conversion, on a '73 MGB. Thanks Jason.|
You need to compare the master cylinder piston diameters to do a suitable replacement. If you keep the drum brakes on the rear, you need to have enough fluid displacement from the master to actuate them. If you are running without a booster you should consider that a larger MC piston diameter will require increased foot pressure with a shorter stroke. Lots of variables here.
Good luck !
|Yes, I will be without a booster. I don't know much about brakes. After reading your post, should I lean toward the Larger Camero MC? If the car holds together I would eventually opt for a disc rear end. Anyone? I'll listen!!|
|If the Camaro MC has a larger diameter piston than the stock MGB, it will cause the brake pedal to be harder to push, but result in a shorter stroke, especially after you convert to discs on the rear. Discs require less fluid volume displacement than drum slave cylinders. Some people like that effect. |
You need to check whether you can mount the MC into the rather small space the MGB provides. Also important is whether the flare tube fittings from the B will work in the SAE threads of the Camaro part. Of course you can make up new brake lines if necessary, but the cost may offset your original intended savings.
|Try Master Power Brakes|
It is what I used in my conversion they have a 7 inch MC that fit right in. I have front and rear disk setup in my 78. Rear disks a from a Ford Explorer hooked up to a Ford/Currie 9 inch rear with 31 spline axels.
|Michael S. Domanowski|
|Jason, I just replaced the M/C on my 73, that is a V6 conversion. Check out the web site parts america.com. I ordered the unit by Bendix and it was fine. They listed one from Cardone, but it was out of stock. Good luck with your conversion.|
|John, would you happen to have the part number? Thanks also! Jason.|
Was that a MGB replacement MC or from another vehicle?
Parts america actually has a pretty nice website for researching parts once you know the vehicle you need it for. I have 3-4 cars in my garge on there for the conversion. heh one for chassis, one fro electronics, one for motor etc etc.. heh
The one I ordered was the rebuilt one for a 73B. It was the same as the one on the car. The one I replaced had only been on the car about 4 years. It was a new unit built by Lockheed, but started leaking around the pushrod. Upon removing it I found metal parts inside that had not been cleaned out after machining, which suprised me. These pieces were too large to have come thru the lines and traps, plus they matched the inside diameter of the cylinder, so this time I went with the rebuilt unit at about a third of the cost. The prices on Parts America.com were good and I had the parts within several days. I was very satisfied with the part and their service.
|Very nice! OHH just in case some people do not know, partsamerica.com is the online division of SCHUCKS. you can even order online and pick-up at your local store. I am lucky that I live near one of the local distribution centers, so often they have many things in stock for me!|
I rebuilt my MC last summer and when trying to get the system bled had no luck. new calipers and rear Cyl's the year before, so know my rebuild did not go well. Time for a new one!
|I just checked the site, for my 78 they have a replacement for $95 after $50 core. They have more $$, but I would go with that one.. I need to find someone local that can do the double flare as I want to reroute at least the front brake lines.|
You can purchase the brake lines in several different lengeth up to about 48'' or you can get a double flare tool for not much. I've never tryed it myself but the flare shouldn't be too dificult, with the correct tool.
|I THINK my tool will doo doubles with an adapter, but I have to check|
This thread was discussed between 07/01/2004 and 19/01/2004
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