C1 wheel cylinder honing

[Donald H.]

I have managed to find correct 1 3/16" used cylinders for my 1960 restoration. How much can I hone them? I have honed one, and it is pretty clean at about .006 over. The other one may need more.

The other one will likely need more to clean up a rust groove near each end of the cylinder.

Thanks,

EON

[John F.]

Re: C1 wheel cylinder honing

Don, You just hone enough to rough up the surface and clean up a little. If it is really bad you need to resleeve. My recent car sat since 1991, so I disassembled, cleaned up and honed then put in a rebuild kit. My brakes work just fine now. The master cylinder did not need to be sleeved (49,000 miles). But I have all matching number wheel & master cylinders.

[Donald H.]

Re: C1 wheel cylinder honing

Don, You just hone enough to rough up the surface and clean up a little. If it is really bad you need to resleeve. My recent car sat since 1991, so I disassembled, cleaned up and honed then put in a rebuild kit. My brakes work just fine now. The master cylinder did not need to be sleeved (49,000 miles). But I have all matching number wheel & master cylinders.

I to have correct part numbers for all the wheel cylinders and Master Cylinder. I did have the master cylinder sleeved as it was really grungy. When I disassembled it looked like some kind of brown soup inside, i.e. rust and very old brake fluid.

When I started the wheel cylinders where a mismatch of replacements from who knows when. I was able to get two NOS correct for the rear. And then tracked down correct used front cylinders from a couple of different people.

[Rod K.]

Re: C1 wheel cylinder honing

I have managed to find correct 1 3/16" used cylinders for my 1960 restoration. How much can I hone them? I have honed one, and it is pretty clean at about .006 over. The other one may need more.

The other one will likely need more to clean up a rust groove near each end of the cylinder.

Thanks,

EON

Defects near the ends where the pistons reside shouldn't affect sealing of the piston seals. You don't need to hone the pits/grooves completely out if they're beyond the area where the piston seals travel.