Chevyguy2001

I installed brakemotive drilled and slotted rotors last september and drove with them for about a month or so before i put the camaro away for the winter. Got her out a few weeks ago....took the brakes apart painted the calipers this past saturday and now on my way home from work today, everytime i put light pressure on the brake pedal there is a high pitched squeal and it goes away when more pressure is applied. The pads and rotors are practically brand new. Is this normal???

03Sssnake

iTrader: (20)

what pad compound and did you follow the break-in procedure?

Chevyguy2001

Ceramic pads and i think i did the right procedure.

03Sssnake

iTrader: (20)

I would check the brake caliper guide pin bolts, make sure they are not loose and torque to 23ft lbs pounds. Go and check the caliper mounting bracket as well, torque to 74ft lbs. Then try a few hard stops from moderate speed, should bed those pads in.

full torque specs ~

astener Tightening Specifications
Application
Specification

Metric
English

Brake Caliper Bleeder Valve
12 N·m
106 lb in

Brake Caliper Guide Pin Bolt
31 N·m
23 lb ft

Brake Caliper Mounting Bracket Bolt
100 N·m
74 lb ft

Brake Hose Fitting Bolt
55 N·m
41 lb ft

Wheel Nut
140 N·m
100 lb ft

scottyroc

iTrader: (5)

Most likely a guide is messed up and what he said ^^^

ThoR294

iTrader: (6)

You put any brake lube on the pads and metal contact areas? or did you just put them on raw

Chevyguy2001

Put brake lube on backs of pads and slider pins

Chevyguy2001

I dont have a torque wrench...

ThoR294

iTrader: (6)

where the pad sits on the hanger as well? make sure its all nice and lubey dubey

FirstYrLS1Z

iTrader: (4)

lube(proper brake lube) on the contact points on the back of the pads,where they contact the caliper and piston,prevents them from high frequency vibration(the squealing noise) upon very light pedal pressure(where/when they're just starting to contact the rotors).

Chevyguy2001

Ah i see,i put the lube on when i put the brakes on but didnt reapply the lube when putting them back together.

03Sssnake

iTrader: (20)

so you went in dry

Chevyguy2001

So i add the lube and should stop the squeal?

Atrus_SS

iTrader: (1)

Couldn't hurt, as long as you don't overlube and get it on the pads/rotor

ThoR294

iTrader: (6)

lol. Everytime I disassemble my pads I make sure I add more anti-squeak stuff. DO it on all the surfaces where there is hard metal on metal action (minus the actual pad/rotor contact!)

Chevyguy2001

I painted them with VHT SP403 Titanium Silver Blue engine metallic

here is a pic of the same color painted on a transmission.

pillarpod

nice color

ThoR294

iTrader: (6)

Wow that is a sick color!

z28bryan

iTrader: (7)

Not sure what you guys are referring to as lube.. but I only put the synthetic brake caliper grease on the caliper guide pins. I don't use anything at any other location.

Some people use that blue or red disc brake quiet stuff which is essentially like liquid rubber. I heard a few posts in the past that convinced me that I won't ever use that stuff. Unless it's spread perfectly evenly (which is close to impossible), that will cause uneven force between the calipers, pads, and rotors. From then on I decided not to mess with that stuff and just toss in the pads.. direct contact with the calipers. I get a very small squeaking but I use Hawk DTC-30's which are a semi track pad.

z28bryan

iTrader: (7)

Not sure if you are talking about the metal shims where the pads slide in the bracket.. but you don't need any lubricant here either. Just replace them every now and then. Make sure you don't get any of it on the rotors while you are at it.. you don't really want to those greased up.