Kelsey Hayes rotors

barracudadave67 said

When all else fails when trying to get the pistons out of Kelsey/Hayes calipers. Drill a hole in the piston for a 5/16 tap. Then you can thread a bolt into the threads you made and push the piston out.
If the piston isn't in too bad a shape you can weld the hole up, and smooth, and finish it out.
I had 4 sets of pistons made for me in a machine shop I worked in, at one time. Can't get them their anymore. They can be made on a lathe easily.

Dave

Click to expand...

You DON'T have to do any type of drilling at all.
Your throwing out lots of miss information there, in such a method that you described.
In being around cars, and auto repair, for the past 55+ years, i NEVER have heard of your method of removing a caliper piston(s) out of a caliper body itself.
But that's a new one on me, that's for sure.
Read post #18 how i replied with getting stuck pistons out of their bores by just using a hard line fitting with a grease fitting in it.
Just screw the hard line tube fitting into the caliper body. That's all that you have to do.
Easy Peasy.

And this is how ya do it, on the main, big body of the KH caliper, using a 3" x 3" block of wood, in the bench vise.
Just keep opening the vise jaws as the pistons begin to come out equally, while pumping away on your grease gun.