Squeaking brakes
Melting Slicks
Joined: Apr 2010
Posts: 3,191
Likes: 53
From: Tucson Arizona
Did you apply anti sqeak or squeal adhesive to the back of the pads when you installed them?
If not Clean the area on the piston and caliper where the pad backing plate touches. Apply the anti-squeal adhesive, reinstall the pads and button up
If not Clean the area on the piston and caliper where the pad backing plate touches. Apply the anti-squeal adhesive, reinstall the pads and button up
Race Director
Joined: Dec 2013
Posts: 12,502
Likes: 3,631
Pull the pads, give everthing a quick clean up with brake cleaner, then anywhere the pad steel backer plate is going to touch caliper/bracket metal, light coat of brake grease. Make sure you get a grease on the side tabs where 10 is pointing in the below photo both side, and a touch of grease in the bracket arms where the side tabs of the pads are going to ride in the bracket a well.
On the anti shim plates on the back of pads, work theBrake grease into the edges of the shim plate to pad backer as well.
On the caliper pistons, very light coat of grease on just the lips that will contact the pad backer, and don't forget to use a light amount of grease on the inside of the caliper other surfaces side where that pad is going to seat against the caliper as well.
Pull the anti squeal shims (9) on the brackets as well, and give them a light coat of brake grease both iniside and out after you have cleaned the dust that was under them.
On the bracket pins on Jl9 or J55 calipers where the calipers bolt in (5), pull the rubber boot slightly back, pull the pins, and grease the rods as well.
Hence the sequel your hearing, is not the pad against the rotor surface (which neither of these two surface should every be greased), but the pad steel backer vibrating in the caliper/bracket against dry surfaces of them isntead.
On the anti shim plates on the back of pads, work theBrake grease into the edges of the shim plate to pad backer as well.
On the caliper pistons, very light coat of grease on just the lips that will contact the pad backer, and don't forget to use a light amount of grease on the inside of the caliper other surfaces side where that pad is going to seat against the caliper as well.
Pull the anti squeal shims (9) on the brackets as well, and give them a light coat of brake grease both iniside and out after you have cleaned the dust that was under them.
On the bracket pins on Jl9 or J55 calipers where the calipers bolt in (5), pull the rubber boot slightly back, pull the pins, and grease the rods as well.
Hence the sequel your hearing, is not the pad against the rotor surface (which neither of these two surface should every be greased), but the pad steel backer vibrating in the caliper/bracket against dry surfaces of them isntead.
Safety Car
Joined: Jul 2013
Posts: 4,408
Likes: 3,485
From: Granada Hills CA
A few years ago I bought Hawks and dumped them a few months later after they began squeaking. Went with AutoZone's Duralast Gold padlets that have a partial rubber shim applied to the back. They worked well. Just replaced them with the same thing and a day after bedding they began to squeak like crazy. Went to a couple AutoZone locations and found that the same item made in different countries had different characteristics. The new pads that squealed were made in Spain and had the partial rubber shim identical to the ones they replaced. Located a set made in Mexico that had a full shim covering the entire back of the pad and installed those and the squeal is gone. Go figure....
Last edited by Bob Paris; Sep 20, 2018 at 09:08 PM.
