If your piston is so stuck that you need hydraulic pressure to "free" it (as you did) you need a new caliper. The insides are either gummed up, and/or corroded. Moving it out may "free" it, but it is not - free. Normal working brake pistons move outward to apply the brakes, and then they retract ever so slightly to no longer squeeze the pads, and put any pressure on them at all. With your calipers there, that retraction will not happen, and the pads will still contact the rotor slightly, causing them to run warmer than they should, and the pads will wear out much faster too.
Gave my brother my 79' Dodge(Mitsubishi) D50 in the late 80s. He phoned me freakin' that the stealership at the time wanted $350.00/caliper(serious coin in the 80s). Took a large C clamp over and did what you did, except used the clamp to work the piston back in, each time he nearly gave himself hemorrhoids with both feet on the brake pedal, hands on the steering wheel, back arched and @$$ off the seat pushing. If memory serves, yes we used silicone spray under the rubbers working it in. When the pistons started getting loose enough they might shoot out, we started using the C clamp set to act like a limiter each time. Took us about an hour to completely loosen up both sides, but what the heck else were we doing with our Saturday? Saved him $700.00 and he restored and drove that truck for over 20 years. Not every problem needs to be solved with cash. He wired brush, cleaned and lubed those calipers so well the mechanic who saftied it thought he'd put new calipers on it.
On dual piston calipers, use two c-clamps to restrain the easy piston, while using the truck's hydraulic pressure to move the frozen piston. Clean it up and install a seal kit, on BOTH sides. It saves TIME and CASH. Often I will just remove one brake pad and shim the easy piston.
My '78 Gremlin had a seized caliper piston right from the get-go. A shop applied who-knows-how-much air pressure to it and it finally popped out. Its surface was quite pitted. They replaced the piston and saved the caliper. This was back in 1984.
my whole 20yr old suv be broken/stuck 😂😭 getting radiator done but also having stuck caliper n problems, i cant take it apart myself no tools or garage
Ahh don't listen to this guy, and go buy a replacement caliper and or brake hose. To fix this one properly the caliper piston would need to be removed the bore of the caliper honed, new seals and pistons installed. Way easier to buy a rebuilt caliper and install. And also he needs to flush the brake fluid as it probably has moisture in the fluid, causing the issue in the first place.
I thought that was a robot's head at first 😂😂😂 ! If you're going to spend any money on a vehicle these days , the brakes are a good place to start .....
If your piston is so stuck that you need hydraulic pressure to "free" it (as you did) you need a new caliper. The insides are either gummed up, and/or corroded. Moving it out may "free" it, but it is not - free. Normal working brake pistons move outward to apply the brakes, and then they retract ever so slightly to no longer squeeze the pads, and put any pressure on them at all. With your calipers there, that retraction will not happen, and the pads will still contact the rotor slightly, causing them to run warmer than they should, and the pads will wear out much faster too.
First step would be to crack the flex hose and see if the caliper is at fault or the hose has collapsed .
Gave my brother my 79' Dodge(Mitsubishi) D50 in the late 80s. He phoned me freakin' that the stealership at the time wanted $350.00/caliper(serious coin in the 80s). Took a large C clamp over and did what you did, except used the clamp to work the piston back in, each time he nearly gave himself hemorrhoids with both feet on the brake pedal, hands on the steering wheel, back arched and @$$ off the seat pushing. If memory serves, yes we used silicone spray under the rubbers working it in. When the pistons started getting loose enough they might shoot out, we started using the C clamp set to act like a limiter each time. Took us about an hour to completely loosen up both sides, but what the heck else were we doing with our Saturday? Saved him $700.00 and he restored and drove that truck for over 20 years. Not every problem needs to be solved with cash. He wired brush, cleaned and lubed those calipers so well the mechanic who saftied it thought he'd put new calipers on it.
On dual piston calipers, use two c-clamps to restrain the easy piston, while using the truck's hydraulic pressure to move the frozen piston. Clean it up and install a seal kit, on BOTH sides. It saves TIME and CASH. Often I will just remove one brake pad and shim the easy piston.
Rust=culprit. Change entire fluid every three yrs or so to get rid of moisture.
Ed c
My '78 Gremlin had a seized caliper piston right from the get-go. A shop applied who-knows-how-much air pressure to it and it finally popped out. Its surface was quite pitted. They replaced the piston and saved the caliper. This was back in 1984.
Spray wd40 under dust boot & work piston back & forth with pedal pumping & c clamp.works everytime
Replace the caliper if froze up.Not worth messing with it
Thank you
my whole 20yr old suv be broken/stuck 😂😭 getting radiator done but also having stuck caliper n problems, i cant take it apart myself no tools or garage
Ahh don't listen to this guy, and go buy a replacement caliper and or brake hose. To fix this one properly the caliper piston would need to be removed the bore of the caliper honed, new seals and pistons installed. Way easier to buy a rebuilt caliper and install.
And also he needs to flush the brake fluid as it probably has moisture in the fluid, causing the issue in the first place.
Fill the master cylinder with Kroil!!🤷
I thought that was a robot's head at first 😂😂😂 ! If you're going to spend any money on a vehicle these days , the brakes are a good place to start .....
Looks like an Akebono caliper design
Waste of time. Get it all back together, test drive it and its hanging up. Now you have to pull it all back apart and replace it.
No,no,no,no,no,
Yeah it’s called buy a new one!!