914 rear brake conversion to 911 parts Options

[shoguneagle]

I have recently converted my 914 rear brakes to 911 ones. The changes were made from all the advice, threads, etc found on this site and 914club.com. I have been over the entire installation and everything seems in order and done correctly;

The problem relates to the left side rear e-brake shoes causing the rotor assembly not to rotate when everything is torqued down. The right side appears to rotate when torque is on the rotor. It appears the brake shoes are digging into the rotor when torque is applied. I do not notice any tracing of scaping anywhere on the inside of the rotor assembly. I am working on the idea that the clearance may be wrong such as brake shoes not arched properly, etc. These same shoes and rotors were used on the donating 911 so I am operating somewhat at a loss.

Any information and advice is greatly appreciated.

Steve Hurt
shoguneaagle

[shoguneagle]

the cables are not hooked up; the problem appears involving the lateral clearances beteen the shoes and the rotor housing itself. I can adjust the shoes to any position and the problem still occurs. The calipers are removed and we are just talking about the interaction between the rotor assembly (e-brake portion) and the brake shoe assembly. Remember this is an adaption from 914 brakes to 911 types.

The shoes and the rotors were taken from an earlier 911. Any interference should have been negiable and everything should have bolted together. The rear bearings have been changed with the addition of Sway-A-Way axles, new CV Joints, etc. What the specific problem involves the ebrake shoes somehow not having and maintain clearance between the e-brake protion of the rotor and the brake shoe installation.

A lot of years ago I remember having a similar problem but cannot remember what caused it. I guess I will start cross referencing parts and taking measurements.