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]

final comments: The problem related to the seating of the backplates which was corrected by pulling everything apart and grinding the hub housing down thus allowing for the paint thinkness. By doing this, I also found a close clearance problem on the caliper mounting points with the rear of the rotor. Had to grind further clearance on the mounts so I had proper clearance with the inside rotor surface.

Everything is now reassembled and operating perfectly. I do not have any clearance, scrapping, or mounting problems. Now just service and bleed the brakes and take the car to the exhaust people for completion.

Then start sorting out the car mechanically and changing some minor items. Painting will go next year and thus we will be planning on attending the Porsche meet in 2014 (one in the Bay Area) with a complete and respectible car.