Wednesday, January 23, 2013

Brakes

It's been a bit too chilly over the last few months to do much, and Alan had to work with stainless steel which is very hard to do at cold temperatures. And then there was Christmas etc which just took over, as it often does. However the weather has warmed up a bit and Alan was able to get on with the car this last weekend.

He had to flare the stainless steel tubing for the brake lines, to fit the connectors at each end of the system. They have special ends as it is a pressurised system. And then there was lots of pipe bending to get the hard line around the chassis to each brake.

Here are the two pipes leading from the master cylinders. The one on the left leads to the front brakes and the other one is the rear brakes.

This is the front left wheel. The 'S'-bend pipe is a flexible steel hose leading from the brake caliper back to the hard line, through the panel on the right. The silver block is a T-piece which allows the tubing to continue to the other wheel.

This is the same set-up, at the back right wheel this time. The pipe comes in from the other wheel at the top of this picture and through the small plate attached to the chassis. The other vertical pipe visible here is the fuel line, it is not connected. The large black block in the foreground here is the brake caliper again.

Alan tested the system with air pressure and figured that one of his flared ends was a bit leaky, so he cut that off and re-flared it. The new end worked a lot better, so he filled the system with brake fluid and bled the brakes. So far, there do not appear to be any significant (or even insignificant) leaks; it is holding pressure and the brakes do appear to work. I guess we can make better tests once we have some actual wheels on the car.