Rebuilding Brake Calipers? Disassembly/Reassembly

[ardentind]

Hey all,
Im collecting parts for an 11" disc brake setup for the front of my '67 Belvedere. I had to order 6 calipers from RA but finally got two with the original pentastar in the casting. Silly? Probably...

Anyways, they are newly rebuilt and id like to paint them. I can either tape them off and Cerakote them, or disassemble them and powder coat them. Both of these processes we do in-house at my shop thats not a problem.

Issue is, I am nervous about disassembling them and being able to get them back together. Very mechanically inclined, own a manufacturing shop, machinist type, etc. Anything I should be nervous about? Assuming if they're all new parts I should be able to disassemble and reassemble using the same o-rings and internal pieces?
Any insight would be greatly appreciated!

Thanks in advance!

 

[493 Mike]

Hey all,
Im collecting parts for an 11" disc brake setup for the front of my '67 Belvedere. I had to order 6 calipers from RA but finally got two with the original pentastar in the casting. Silly? Probably...

Anyways, they are newly rebuilt and id like to paint them. I can either tape them off and Cerakote them, or disassemble them and powder coat them. Both of these processes we do in-house at my shop thats not a problem.

Issue is, I am nervous about disassembling them and being able to get them back together. Very mechanically inclined, own a manufacturing shop, machinist type, etc. Anything I should be nervous about? Assuming if they're all new parts I should be able to disassemble and reassemble using the same o-rings and internal pieces?
Any insight would be greatly appreciated!

Thanks in advance!

As long as you are gentle with the seals there shouldn't be a problem. Lube them up during reassembly.
Mike

 

[dvw]

5 minute job. Pop the piston out with air. Slide a block of wood behind the piston to cushion it. When reasembling install seal and boot. Clamp the caliper in a vice. You can screw a bolt into the mount hole so it doesn't scratch the paint. Aim a blow gun close to the flex line hole (at least an 1" away depending on pressure) and apply air. While doing that take a lubed piston With your other hand holding against the boot. When the piston starts to touche the boot creating an air seal twist the piston into the boot. Doesn't take much air. It's kind of touchy feely. Once you get the hang of it its quick. Personally I'd blow the piston out partway to stretch the boot. Then tape off the boot/piston and spray away.
Doug