rear caliper piston seal question, HELP!
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Joined: Jan 2003
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From: Gods Speed #57 Lemons #77
rear caliper piston seal question, HELP!
I was installing some SS lines, cryo treated rotors and pads when I noticed that the right rear caliper piston seal was not seated into the caliper body. In otherwords, when the piston is extended outwords, the seal rides along with the piston thus exposing it to dirt/contaminiants. I pulled the caliper, removed the piston and reseated the piston seal onto the caliper body but than the seal prevents the piston from being reinserted. If I put the seal over the piston first and than reinserted the piston all the way, the seal would not attach itself to the caliper body.
QUESTION: How in the hell do you get the caliper piston seal to attach to the caliper with the piston onserted? Thanks in advance.
P.S. Of course I tore it the seal jiggling around with it so I will need a new piston seal.
QUESTION: How in the hell do you get the caliper piston seal to attach to the caliper with the piston onserted? Thanks in advance.
P.S. Of course I tore it the seal jiggling around with it so I will need a new piston seal.
Thread Starter
Joined: Jan 2003
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From: Gods Speed #57 Lemons #77
Originally Posted by hecash,Mar 28 2005, 02:04 PM
Go to the hardware store and buy two of the smaller, say 9", stainless hemostats.
Clean the seal and grease (high temp) the lip on the seal that inserts into the piston cylinder. Using a small screwdrive or other such tool (I use a small awl.) re-seat the seal into the piston cylinder.
Now, let's set a reference. As you look down into the piston cylinder with pad arm on top, place one hemostat onto the lip at the 10 o'clock position and the other at the 2 o'clock position.
Lube the piston with brake fluid. Now the dexterous part. Pull the 6 o'clock position of the seal over the front of the piston and hold the back of the piston into the lip of the piston cylinder with your thumbs. With your fingers, pull the hemostats up until they carry the back of the seal up onto the piston. Pull them all the way up to the retaining recess on the back, shove the piston down into the cylinder and then mate the rest of the seal into the retaining recess.
It sounds complicated as hell but once you learn how to do it, it only takes 30 seconds from start to finish.
Clean the seal and grease (high temp) the lip on the seal that inserts into the piston cylinder. Using a small screwdrive or other such tool (I use a small awl.) re-seat the seal into the piston cylinder.
Now, let's set a reference. As you look down into the piston cylinder with pad arm on top, place one hemostat onto the lip at the 10 o'clock position and the other at the 2 o'clock position.
Lube the piston with brake fluid. Now the dexterous part. Pull the 6 o'clock position of the seal over the front of the piston and hold the back of the piston into the lip of the piston cylinder with your thumbs. With your fingers, pull the hemostats up until they carry the back of the seal up onto the piston. Pull them all the way up to the retaining recess on the back, shove the piston down into the cylinder and then mate the rest of the seal into the retaining recess.
It sounds complicated as hell but once you learn how to do it, it only takes 30 seconds from start to finish.
Thanks for the info. I tried variations of your way without success. I wondered if there was a special order or some trick but it just looks like you have to get it just right. usually I am pretty good at this kind of thing but I had been working for hours in the cold and it was dark out and I think I was just too tired and pissed off to get it right. I'll have to retry again when I am a little calmer
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