The importance of brake drums calipers and brake painting classic cars

During a visit of a Bentley dealership, the service manager took great pride in recognition of their attention to detail, and showed me a brake calipers in the mechanics of a modern Bentley painting was for a service. I’m doing this for years in our fleet of classic cars for a number of reasons.

Anyone who bought a classic car that has not had much use known as rust on the brake calipers can cause problems. It is unpleasant when viewed through wheels or rims chrome alloy wire bright beautiful period. But most important of oxidation can cause problems with the braking system during maintenance.

The supports are usually made from cast iron and while some cars were plated nickel or better yet, brake pipes of copper, almost all of them have connections steel brake lines and steel nipples brake to the edges which can be oxidized. If rust is not kept under control, while the bleed valves can rust in the stirrups making it virtually impossible to bleed the brakes. I saw too many cars that are rounded apartments located in the bleed valves so they can not be canceled with a key. In severe cases, bleeding nipples snapped, ie, the support must be removed, brake pipes dismantled (if discarded, then carefully drilled and replaced bleed nipple.

If the bleed nipple has reached this stage, then it is very possible that the brake pistons began to rust in the stirrups, so – but that’s a separate issue.

When I do my main winter service in all my classic cars remove rust from the caliper with a wire brush, especially around the ends of the brake hoses and bleed nipples. Treatment of these elements, with an oxide normally Kurust, and then gave the stirrups of a thin layer of paint Smoothrite, usually money. Some brake calipers when new cadmium plated (which was banned), which has a yellow / gold color. In this case, I use the gold Smoothrite dried at a similar cadmium color.

I note here a layer of “fine” of painting. Just enough to give good coverage and brushed a thin layer. DO NOT paint the ends of the brake hoses or bleeding nipples or part of the nipple clamp screw, otherwise you can bring the paint is as bad as in situ oxidation. If you remember, it is also interesting to add a drop of thin oil or WD40 jet (or equivalent) to the base of the nipple to allow it to seep into the upper threads par.

Some of our cars have drum brakes at the rear, so here the battery is removed rust and paint the Kurust Smoothrite usually silver. Brake hoses and bleed nipples do not fit on the drums, but through the plate drum back so that as the wheel and the battery is removed, I wire brush end of the pipe and nipples and Kurust these also.

You now have a set of mold, very neat looking, tweezers and drums with accessories that hope cancel if necessary. Good to know that Bentley Cheltenham come to my standards.

At this point, it is also useful to add a reminder that the brake fluid absorbs moisture from the air and should be washed and changed every three years, hence the need to be able to undo the bleed valves.

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