Brakes problems on a 1971 Midget.

May 02, 2004 5 Replies

Last Fall I purchased a 71 Midget that was mostly restored. I drove it a little last fall and then parked it for the winter. This spring it started right up but didn't have any brakes. I did find some oil on the floor and a leak in the switch assembly. I ordered a rebuild kit and replaced the o rings and copper washer. I now cannot get the brakes to work without pumping them 3-4 times. I doesn't appear to have air in the lines and if I pump them when I go to bleed the lines the fluid shoots out properly. Is it possible the master cylinder is leaking enternally? If somone out there has some experience with this please let me know what I should be looking for and if I should spend the time rebuilding the master cylinder. Brent


Sometimes you can get an air bubble in the system perhaps at the top of a bend in the brake pipe.The only way to clear this is to pump the brakes hard and fast ,maybe with the help of a friend,when bleading them .

Master cylinder has rusted and the piston seized inside or the rubbers worn due to rust. either way it will need a full overhaul.

Thanks for all of your help I'm a first time user of the message board and I will be back. I'm going to do the master cylinder rebuild and flush the brake lines to insure that I have all of the crud and air out of the system. Thanks for heading me in the right direction. Thanks Brent

I would also have a look at the calipers (these only need a clean out - steel wool the pistons and clean the inner caliper with a course wet and dry 240G and replace the seals and channel seal)

The rear cylinders will also need a overhaul - about 3 years in attention is all they need for replacement or overhaul.

Neither of these should be expensive - but I would rather stop.

Brake fluid should be changed every 12 mths as it absorpted moisture which causes the rust.

rm

rm

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