front caliper rebuild issues
#1
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front caliper rebuild issues
Got caliper rebuild kit. Got caliper off okay. Wanted to use brake system to push piston out. Only goes so far then stops. Pedal goes to floor. I couldn't figure out where the boot retaining ring is hidden in there, thinking maybe something there was holding up piston?
Not sure if the master is bad too or I'm just mired in caliper issues.
So, boot retaining ring removal?
Using brake hydraulics to push piston out?
Thoughts on master?
At least parts are cheap. Will spring for all new caliper and/or master but always like to try the rebuild stuff first.
Not sure if the master is bad too or I'm just mired in caliper issues.
So, boot retaining ring removal?
Using brake hydraulics to push piston out?
Thoughts on master?
At least parts are cheap. Will spring for all new caliper and/or master but always like to try the rebuild stuff first.
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the last caliper set i did was an FD and those pistons did not want to come out, maybe you just need to help it a little?
#7
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Got it. After pushing back in with clamp, pushing out with car's hydraulics, eventually it worked all the way out. Cleaned everything up, new seal, new dust boot (pain putting that back in, ripped the boot a bit in the process, ugh. Brake seems alright, doesn't release quite as nice as the other side but hopefully it will settle in a bit.
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#8
acdelco d1906 Nkg 49034
how hard is removing retaining ring? what tools do I need? my wet caliper is rusted around the retaining ring, is that a problem?
"using the car hydraulics"......that's the kind of info I come here for
Ordered the rebuild kit, its delivery is scheduled 9 days from now.
"using the car hydraulics"......that's the kind of info I come here for
Ordered the rebuild kit, its delivery is scheduled 9 days from now.
#9
acdelco d1906 Nkg 49034
One down! this is what I learned:
1>after rotating the caliper up as you would when changing the disc brake pads, pump the brake pedal, You will hear a clang when the brake piston comes out.
2>then remove the caliper.
3>dig with a small screw driver at the outer seal untill you see the retaining spring clip
4>remove spring clip, and then remove the inner seal that is in the recessed .grove of the brake cylinder.
5>clean all that sh$% up
6>insert the inner seal, and smear a dab of brake fluid on it.
7>attach the outer seal to the brake piston (that's the IMPORTANT tip)
8>THEN insert brake piston into the cylinder.
9> work the outer seal to the cylinder's groove
10>work the new retaining spring into the cylinder's groove
11>attach caliper, and brake hose, the disc brake pads, and bleed the brakes
1>after rotating the caliper up as you would when changing the disc brake pads, pump the brake pedal, You will hear a clang when the brake piston comes out.
2>then remove the caliper.
3>dig with a small screw driver at the outer seal untill you see the retaining spring clip
4>remove spring clip, and then remove the inner seal that is in the recessed .grove of the brake cylinder.
5>clean all that sh$% up
6>insert the inner seal, and smear a dab of brake fluid on it.
7>attach the outer seal to the brake piston (that's the IMPORTANT tip)
8>THEN insert brake piston into the cylinder.
9> work the outer seal to the cylinder's groove
10>work the new retaining spring into the cylinder's groove
11>attach caliper, and brake hose, the disc brake pads, and bleed the brakes
Last edited by midnight mechanic; 05-25-18 at 10:37 AM.
#10
Waffles - hmmm good
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One down! this is what I learned:
1>after rotating the caliper up as you would when changing the disc brake pads, pump the brake pedal, You will hear a clang when the brake piston comes out.
2>then remove the caliper.
3>dig with a small screw driver at the outer seal untill you see the retaining spring clip
4>remove spring clip, and then remove the inner seal that is in the recessed .grove of the brake cylinder.
5>clean all that sh$% up
6>insert the inner seal, and smear a dab of brake fluid on it.
7>attach the outer seal to the brake piston (that's the IMPORTANT tip)
8>attach caliper, and brake hose, the disc brake pads, and bleed the brakes
8>THEN insert brake piston into the cylinder.
9> work the outer seal to the cylinder's groove
10>work the new retaining spring into the cylinder's groove
1>after rotating the caliper up as you would when changing the disc brake pads, pump the brake pedal, You will hear a clang when the brake piston comes out.
2>then remove the caliper.
3>dig with a small screw driver at the outer seal untill you see the retaining spring clip
4>remove spring clip, and then remove the inner seal that is in the recessed .grove of the brake cylinder.
5>clean all that sh$% up
6>insert the inner seal, and smear a dab of brake fluid on it.
7>attach the outer seal to the brake piston (that's the IMPORTANT tip)
8>attach caliper, and brake hose, the disc brake pads, and bleed the brakes
8>THEN insert brake piston into the cylinder.
9> work the outer seal to the cylinder's groove
10>work the new retaining spring into the cylinder's groove
Good to hear you got er done though.
#11
acdelco d1906 Nkg 49034
One down! this is what I learned:
1>after rotating the caliper up as you would when changing the disc brake pads, pump the brake pedal, You will hear a clang when the brake piston comes out.
2>then remove the caliper.
3>dig with a small screw driver at the outer seal untill you see the retaining spring clip
4>remove spring clip, and then remove the inner seal that is in the recessed .grove of the brake cylinder.
5>clean all that sh$% up
6>insert the inner seal, and smear a dab of brake fluid on it.
7>attach the outer seal to the brake piston (that's the IMPORTANT tip)
8>THEN insert brake piston into the cylinder.
9> work the outer seal to the cylinder's groove
10>work the new retaining spring into the cylinder's groove
11>attach caliper, and brake hose, the disc brake pads, and bleed the brakes
1>after rotating the caliper up as you would when changing the disc brake pads, pump the brake pedal, You will hear a clang when the brake piston comes out.
2>then remove the caliper.
3>dig with a small screw driver at the outer seal untill you see the retaining spring clip
4>remove spring clip, and then remove the inner seal that is in the recessed .grove of the brake cylinder.
5>clean all that sh$% up
6>insert the inner seal, and smear a dab of brake fluid on it.
7>attach the outer seal to the brake piston (that's the IMPORTANT tip)
8>THEN insert brake piston into the cylinder.
9> work the outer seal to the cylinder's groove
10>work the new retaining spring into the cylinder's groove
11>attach caliper, and brake hose, the disc brake pads, and bleed the brakes
Last edited by midnight mechanic; 05-25-18 at 10:40 AM. Reason: corrected mistake in prior message
#12
acdelco d1906 Nkg 49034
Ever notice that the hole for entering brake fluid and bleeding valve is at the center of the brake cylinder chamber? That means some air always remains after bleeding?
#13
acdelco d1906 Nkg 49034
went to two indi garages for a brake caliper replacement price quote. One said 1.4 hours labor= $150 but he can't find the parts. The other said 1.5 hours labor = $125 and he could find the parts. Rebuilding the calipers is an 1.5 hour job, it is cheaper to just buy new calipers at $50 each.
So wow! I am one gifted mechanic or these guys are crooks!!!
So wow! I am one gifted mechanic or these guys are crooks!!!
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