Thread: Brake pedal height

Got any pad left?

I'd say your pads and/or rotors are worn. What is happening is when you put your foot on the brake pedal you are tacking up the "slack" before engaging the brake pads with the rotor.

The adjustment is new brakes.

I'll have a look. Discs aren't like drums though. There isn't a spring to return the pads. The pistons will press out taking up the pad wear, and stay put. Do Rangie brake calipers pull the pistons back in mechanically I haven't struck that before on any disc braked car ie: pad and rotor wear should not effect pedal height with 4 wheel disc brakes.

With drums you adjust a stop point for the pads out so the springs don't pull the pads way back off the drums causing huge slop in the pedal.

seeya,
Shane L.

I would have thought that pads don't pull back like shoes so there's no slack to take up to give excessive pedal travel.

Don't early Rangies have four spot calipers on the front and dual spots on the rear ? with a complex dual hydraulic system ?

I'd be having a look underneath for fluid or check to see if one half of the master cylinder was empty.

Perhaps you're only running on one brake circuit , this could give the symptoms you describe.


Deano

The Pistons won't pull back, but if there is no Pad left you will be pushing harder, OR it will feel lower.

Originally Posted by DeanoH

I would have thought that pads don't pull back like shoes so there's no slack to take up to give excessive pedal travel.

Don't early Rangies have four spot calipers on the front and dual spots on the rear ? with a complex dual hydraulic system ?

I'd be having a look underneath for fluid or check to see if one half of the master cylinder was empty.

Perhaps you're only running on one brake circuit , this could give the symptoms you describe.


Deano

Yep, twin pistons up front, single on rear.
No not a complex system, fairly common system.

G`day ,

try it on some gravel , low speed , lock up the brakes to a stop get out and see the gravel piled at the fronts and not rears.

Primary is 2 on the front and 2 on the rear , secondary is the other 2 fronts .

Check the proportional valve for a leak( in the primary) , rubber pipes ballooning , ETC

If there`s fluid pad wear has little to do with pedal height .

Originally Posted by discovery39

Yep, twin pistons up front, single on rear.
No not a complex system, fairly common system.

I'm pretty sure my old '86 Classic had Lockheed 4 spots on the front and 2 spots on the rear with dual circuit hydraulics. The 'complex' bit was that both hydraulic circuits fed each front wheel with the rears on one circuit only. A little bit different from a 'normal' dual hydraulic system.

Deano