Chris S

[QUOTE]Originally posted by amartin
[B]I should have used Elistan's pic as a clue, since I haven't even finished one wheel yet (need to get some C-clamps), and my hands turned completely black! Grease in the fingernails won't be good for my hand modeling career.

Chris S

I'm stuck! Needless to say, I'll never be mistaken for a master mechanic.

Please see this thread...
https://www.s2ki.com/forums/showthread.php?...&threadid=82126

Schatten

responded in other thread.

Prelude2k

That looks familiar....my prelude's are like that also. Out of curiousity, why don't they just do the rears like the fronts? I know there's a little boss on the back of my rear brake pads that fits into one of those slots, apparently to keep the piston from rotating over time. But if it's not a problem for the fronts......why the rears? Only difference I can think of is parking brake.....but why.....?

thanks.

-phil

jwfisher

There is no boss in the back of the pads.... the piston HAS to rotate. That's how the parking brake works - pull the cable and it rotates the piston and the pad outwards.

There are two types of rear *disc* brake designs:

1) ones like ours are the most common.

2) The alternative dcesign has a mini drum brake in the hub of the rotor - used solely for parking brake capability. The caliper itself then is much like the front - aka no slots and the piston doesn't screw in/out. Supra (IS300, GS430, et al) uses this design. Disadvantage here is that you can't replace the rotor with aftermarket parts because they don't have the necessary room for the parking brake apparatus. Advantage is the caliper is a lot more simple, and you could replace it with an even better aftermarket piece very easily.

Prelude2k

Your description makes sense....but there was a small boss for *something* protruding from the back of the Hawk HP+ rear pads I bought for my 92 Prelude back in the day. Wonder what it was.

jwfisher

A wear indicator... the pad wears down to a certain point and a peice of metal contacts the rotor to let you know it's time to switch them out...

cdelena

[QUOTE]Originally posted by wisher
[B]There is no boss in the back of the pads.... the piston HAS to rotate.

jwfisher

Funny, none of the various pads I have or have tried on this or any car have any tab. The piston couldn't turn if there was a tab.

The "rate of rotation" is controlled by how fast you yank up the parking brake handle.

Prelude2k

Nah, that wasn't the wear indicator. I know what that looks like....plus there'd be no reason to have wear indicators on just the rears