In most cases, the failure of the shuttle o-ring seals causes brake fluid leakage around the plastic warning switch. Now, since early spring, if I let my car sit for any period of time - more than a week - when I get in the car there is a small puddle of brake fluid on my floor mat, where it has drained down from the brake pedal from the master cylinder. This endurance pad, with special formulation for long races, runs cool and wears longer than our regular R-4. To replace the brake fluid and bleed the braking system will require the vehicle to be raised onto axle stands to gain access to the brake nipples on each wheel. I suppose that the brake pedal falling to the floor and little or no braking being available might be another indication of trouble… Here is what you get when you take the warning switch block apart. This switch when grounded see diagram 1 by the lateral movement of the floating piston due to independent hydraulic line pressure loss in the front or rear brake system the dash light bulb ground circuit is activated. If you are mechanically inclined and lay things out in the order the come out, it is not difficult.
It wasn't until I was installing a stereo, that I had my head way down under there, looking up under the dash, and the back of my head hit the pedals. Then I had an assistant pump the brake pedal while I looked around. The cylinder itself is held in place by two securing bolts top and bottom in the cover housing. Once the cover is off, it is a good idea to remove as much of the fluid in the cylinder reservoir as possible to minimise spillages, then remove the grommet in the bulkhead panel behind the cylinder as this will allow more movement when removing the unit. British Automotive custom brake pad. Recommended for all heavy brake applications with vehicle weights of 2,400 lbs. Get in there with hot water and soap and immediately clean up any dripped brake fluid-before it wrecks your paint.
These are not terribly difficult cylinders to rebuild. Only fits 1975 models Screws into the master cylinder body. The only difference was that the original cylinder had a somewhat wedge shaped reservoir, while the later one is more square. Rotor wear is reduced with Carbon Metallic pads. Once in place reassemble the pipe and piston linkages so that the system is all connected. So be sure to check these items out first.
The more brake pad wear that was evident, the more the channel was blocked with transferred pad material. Carbon Metallic contains no asbestos, no kevlar and no lead. Street replacement high torque pad with temperatures of 75F to 700F. Now, it's Dot 3-4 safe that's everywhere. We finally got some in recently. Then I noticed the little bit of moisture at the top of the pedal, and it was finally that I realzied why my left shoes were all getting wrecked for years.
Replacing the cylinder is a rather fiddly task so needs a bit of time and concentration. It is original for 76-80 cars, but makes a perfectly useable substitute for 1975 cars. Carbon Metallic pads continue to grip even when hot, offering consistent braking and pedal feel. This precision design combines Kevlar, Carbon and an array of other high performance materials to make a better brake pad. It will require a second person to pump the brake pedal to force fluid around the system removing any air.
If a leak occurs in one circuit, you will still be able to stop the car when pressing the brake pedal because only two of the wheels will lose their brakes. Z-Rated Brake Fluid 16oz steel container. After tightening the nut, check for correct end float 0. Suddenly I saw a few bubbles coming up from that plastic warning switch on the brass block. Vehicle weights 2400 or less. Even removing the circlips down in the cylinder, wasn't that hard. With larger pad areas and higher coefficient of friction materials, the driver should be aware that front wheel lockup can occur more rapidly if proper pedal techniques, under heavy braking, are not applied.
I was one of the first people to buy a Winners Circle rear disc brake kit, and it is very well engineered, and it served me well. Apply a film of oil to the inner bearing, likewise the outer bearing, and assemble the hub along with the outer bearing, washer and nut. A uniquely engineered composite brake pad. I jacked up the car and examined the brake calipers and the brake hoses. Inside the brass block there are fluid channels connected to both inlet and outlet ports. During 1998 we were in a position to further evaluate this procedure and found, upon examination, that the channel in many of the brake pads, which we had previously installed, had become blocked over time with brake pad material. I think you need to be a trained monkey to do this job.
This is the single-circuit master cylinder used on the early cars. I'm happy to help and I'm ordering on Monday. Why not get at it now, prior to driving season. A new plastic spacer comes with the rebuild kit so you don't worry about destroying it - the only trick is in getting it out without scoring the cylinder. The brass block can then be dismantled and overhauled with a new seal kit and reassembled. Long, thin and pointed about describes the tool I made to get it out.
Thanks, David I use the Tilton twin masters with the balance bar and in-cockpit adjustment. If you use the regular old stuff that absorbs water. Undo the brake pipes from the side of the master cylinder. That is all I know. Take fastidious notes as to how it comes apart.
However, for street and street performance driving, we have found that the regular brake shoe replacement lining materials, supplied by various Vendors, when used in conjunction with upgraded brake pads, to be more than adequate. As the shuttle moves in its bore inside the casting, it pushes against the pin on the end of the plastic switch. Always keep your brake master cylinder fully topped up. Carbon Metallic pads are manufactured to the highest standards from the raw material to the finished product. Z-rated fluid is non-corrosive to brake system components and has been proven to be easier on both natural and synthetic rubber seals. By frequently, I mean every few years or so. Works just the same… Screws into threaded hole in the master cylinder body.