Wilwood brakes? - Page 2

Ian Hill · 08-26-2011, 08:08 AM

i purchased a stocker late fall last year and went through it completely over the winter. the front two calipers were draging more than i would have liked. i noticed before i removed them that they were not installed with the proper spacers so not only were the pads wearing poorly, but there was also side load on the pistons. this was evident when i disassembled the calipers for inspection and there was a small bit of scoring on the sides of the pistons from the calipers. i put the pistons in a lathe and polished the outside diameters with 400 grit sand paper and lightly hand blended the marks in the bores with 800. the pistons moved freely when tested without the seals. reinstalled the seals and added a liberal coating of brake fluid to every thing before final assembly. I was so impressed by how free everything was i redid the rears as well. the car now rolls about 10 feet just by kicking the bumper! from my experience i would say paying close attention to the caliper alignment to the rotors will extend to the life of the pads, extend the time between rebuilds and internal caliper components. Also as noted in another post, once the piston moved freely in the caliper it seems to allow the pistons to be sucked back a bit when the master cylinder is released after braking. i have no trick return springs or trick calipers and the car rolls for ever.

Ian

40Coupe · 08-26-2011, 10:46 PM

Went through this with my Camaro. One simple call to Wilwood will solve it. Call tech and ask for the round o-ring kit. My fronts spin freely now.

Glenn Hayes · 10-13-2011, 09:39 AM

Excellant information on the brakes.
Thank you.

08-26-2011, 08:08 AM	#11
Ian Hill Member Join Date: Sep 2008 Posts: 216 Likes: 0 Liked 6 Times in 3 Posts	Re: Wilwood brakes? i purchased a stocker late fall last year and went through it completely over the winter. the front two calipers were draging more than i would have liked. i noticed before i removed them that they were not installed with the proper spacers so not only were the pads wearing poorly, but there was also side load on the pistons. this was evident when i disassembled the calipers for inspection and there was a small bit of scoring on the sides of the pistons from the calipers. i put the pistons in a lathe and polished the outside diameters with 400 grit sand paper and lightly hand blended the marks in the bores with 800. the pistons moved freely when tested without the seals. reinstalled the seals and added a liberal coating of brake fluid to every thing before final assembly. I was so impressed by how free everything was i redid the rears as well. the car now rolls about 10 feet just by kicking the bumper! from my experience i would say paying close attention to the caliper alignment to the rotors will extend to the life of the pads, extend the time between rebuilds and internal caliper components. Also as noted in another post, once the piston moved freely in the caliper it seems to allow the pistons to be sucked back a bit when the master cylinder is released after braking. i have no trick return springs or trick calipers and the car rolls for ever. Ian

08-26-2011, 10:46 PM	#12
40Coupe Junior Member Join Date: Mar 2007 Posts: 91 Likes: 0 Liked 0 Times in 0 Posts	Re: Wilwood brakes? Went through this with my Camaro. One simple call to Wilwood will solve it. Call tech and ask for the round o-ring kit. My fronts spin freely now. __________________ '67 Camaro 1.25 5.77 @ 118

10-13-2011, 09:39 AM	#13
Glenn Hayes Member Join Date: Feb 2009 Location: Weeki Wachee, Florida Posts: 348 Likes: 416 Liked 18 Times in 12 Posts	Re: Wilwood brakes? Excellant information on the brakes. Thank you. __________________ "Real Race Cars Have Tailgates"