Drumming out a good response

[porschpow]

ok, so brakecleen to use on cleaning them, but what would you use to scuff? Sandpaper100 grit?

[sly]

120 grit... 80 grit... 240 grit... whatever is on hand... just a light scuff. It's not really needed, but can aid with initial breakin if the pads are cheap/standard parts store stuff. totally not needed for high dollar pads.

[91waggin]

if my rear is pulsating, could my rear rubber hose be the culprit?

I'm going to take this out of context right here because nobody else has.

The question is....why is there a rubber hose in your pulsating rear?

[porschpow]

the rubber hose that goes over the rear axle. That is what I meant

Well, guys, i switche dout the drums and although it still pulsated a little, it's not as bad as it once was.

Perhaps I should get the front rotors cut/shaved.???

It does still pull to the left and gets worse when i hit the brakes

[sly]

probably need to turn the front rotors and check the caliper pins for proper motion (make sure nothing is seized).

[Brown_Muscle]

X2
When you are coming off the highway, and go to brake, does the vibration occur in the steering wheel, or the seat?

[porschpow]

The seat, and it doesn't vibrate. It is the pulsating. it's weird, the steering wheel doesn't shake or vibrate at all

[porschpow]

Check the caliper pins? for what? and are they the bolts that secure the caliper to the spindle mount

[sly]

check to make sure that the calipers are gripping evenly and not just stuck in place and working on one side of the rotor only. The caliper pins on that towny should be the bolts that hold the caliper in place. you just need to verify that nothing is stuck/jammed.

[porschpow]

Yeah I tried doing that, I loosened the bolts and carefully put them back in. I noticed if I moved the caliper, the rotor would spin easier, but once i TIGHTENED the bolts it went back to having resistance whole the rotor was spun??? Weird. Its as if the bolt mounts were warped. I guess I just need to have the rotors cut, It seems to me that the pads are gripping the rusty edges of the rotor??? I dont know

[kodiak]

The piston on the caliper could also be sticking

Sent from my '85 Lincolin Town Car

[porschpow]

how would I diagnose that, I know both front calipers are new replaced within 3-4 months

[sly]

take the caliper off, shove a block of wood in it and see if someone pressing on the brake can cause it to clamp down on the wood. If it does, the piston is fine.

[porschpow]

I don't feel the vibration in the wheel but the seat, it feel like its the rear

I don't get it, I replaced the drums, bled the brakes cleaned the inside iog the drums brakes.

Am I missing somethign here. it still does the pulsating???

X2
When you are coming off the highway, and go to brake, does the vibration occur in the steering wheel, or the seat?

[Brown_Muscle]

Well...there's a possibility the drums were stored wrong and warped a little bit. I've had that happen.