Caliper rebuilding.
 

Who is everyone using to rebuild single piston Camaro brake calipers? I used Lonestar in Texas to do my 4 piston originals on my 67 Camaro, but it doesn’t look like Ken does single piston. A good friend is doing his pace car and I’m trying to get him to keep his date coded originals.
Thanks
Buddy

I did my own. You can get pistons and seals at NAPA

I did mine also. Pretty easy...Joe

This pace car has been sitting for 20 years! Probably gonna need sleeves.
Buddy

Hi Buddy, I usually do my own but if they need sleeves I've used White Post with quick turn around. Locally Apple Hydraulics in Calverton, NY and you could drop them off.

The sealing surface is the piston, not the bore...Joe

Joe when a bore that is pitted you'll never get a it to seal. That is why they resleeve the bore. Most of the time I can hone the bore to remove minor rust/pitting. I can't remember the last time I had to replace a piston.

It was my understanding on the single caliper that the bore didnt do much since the seal edge is the piston.

100% correct, a little pitting won’t matter

Right. As long as the pits aren't in where the seal goes. The seal goes in the caliper housing....Joe

I was thinking of the master, however in 45 years of playing with the single piston calipers I have never replaced the piston assembly for pitting. Yes forgot the seal is stationary. I have had pistons stuck, but have always been successful in freeing it up.

I sold several of the pistons years back when I worked at NAPA. Some were damaged when people didn't know how to remove them. Some had phenolic pistons that they were replacing. Never researched where they came from.....Joe

The phenolic pistons were a Ford deal. Guess it is possible GM used them on something; but I don't remember ever seeing them on a GM car. We used to have Ferds and Lincolns towed in all the time with the front brakes locked up. Pistons would swell. We replaced them with steel pistons.

Back in 1998 i used new york stainless on my four pistons brakes cal. Don,t really know they are still in business but to this day they are perfect working order

Local auto parts store sent mine our, just mark them to get them back. Blasted, rebuilt, $35 ea. Then I painted it cast so it wouldn’t get all rusty. New bleeders too, covers, it was a deal.

I did mine a while back using Napa kits, every easy. Soak the calipers and piston in evaporust over night.

Thanks for all the ideas guys!
Buddy

I've also got a stockpile of ready to go calipers available - I have many dates too.

FYI, thanks - don't want to hijack this thread, just an FYI.
Anthony

https://www.yenko.net/forum/showthread.php?t=146099

Great info here. Thank you. Does anyone make a USA made rebuild kit? I don't like cheap imported junk in general but really find most cheap rubber products to be complete useless.

I have Oring installed and dust seals on 70 Camaro single piston calipers.....Can someone
educate me on how to insert piston thru dust seal ....Ive tried/failed using air to balloon the seal .............

Air is the easiest way, but how much pressure are you using ?? You need to regulate the air down to under 5 lbs..2-3 is all you need to balloon the seal, once you have positioned the piston JUST right on it, anymore pressure than that, and you are fighting it to push the piston in. Also, as soon as the seal balloons around the piston, shut the air off.
Have a film of brake fluid on the o-ring to help the piston slide in.

Just out of pur curiosity does anyone make a stainless steel bleeder ?

As a follow up, my friend who ownes a small auto repair shop and his very experienced mechanic did the air/balloon method for me,
although it wasnt easy....took maybe five minutes with one guy controling the air blower and the ace mechanic manipulated the piston
until he could get the dust seal rubber to come around the edge of piston....He was using high air pressure and wouldnt listen to me about
trying low pressure...............