Thread pitch of brake caliper bleeder screws?

need RX7 · 04-03-2010, 12:03 AM

After contemplating the replacement of a snapped bleeder screw today, I decided I would be best off putting Speed Bleeders in all the calipers. What pitch do the FC calipers take? Are they all the same all around? What about 4-pot vs single piston fronts?

RETed · 04-03-2010, 12:18 AM

Fronts are 8mm x 1.0.
Rears are 7mm x 1.0 - both of them.

These are for the "big brakes" - 4-piston fronts and vented rears.

-Ted

josh18_2k · 04-03-2010, 01:14 AM

considering you have a snapped bleeder...
be aware that you have to be gentle to speed bleeders! they are much more fragile than standard ones. hand tight with a very small wrench.

need RX7 · 04-03-2010, 12:08 PM

Haha yeah, I'm usually pretty gentle with them, but this one was rusted shut, and I got frustrated and gave it a huge tug (giggity) and it broke off. I figure if I start out with non-rusty ones, we'll be all good

.

04-03-2010, 12:03 AM	#1
need RX7 Clean S4 Nutswinger Join Date: Mar 2008 Location: Sterling Heights, MI Posts: 485 Rep Power: 18	Thread pitch of brake caliper bleeder screws? After contemplating the replacement of a snapped bleeder screw today, I decided I would be best off putting Speed Bleeders in all the calipers. What pitch do the FC calipers take? Are they all the same all around? What about 4-pot vs single piston fronts? __________________ -Ted -1986 Mazda RX7 Sport [DD/beater]: engine finally let go at 205k. parts car status. -1986 Mazda RX7 base [resto-mod project]: S5 n/a swap in progress.

04-03-2010, 01:14 AM	#3
josh18_2k Rotary Fanatic Join Date: Feb 2008 Location: Gresham, OR Posts: 473 Rep Power: 18	considering you have a snapped bleeder... be aware that you have to be gentle to speed bleeders! they are much more fragile than standard ones. hand tight with a very small wrench. __________________

04-03-2010, 12:08 PM	#4
need RX7 Clean S4 Nutswinger Join Date: Mar 2008 Location: Sterling Heights, MI Posts: 485 Rep Power: 18	Haha yeah, I'm usually pretty gentle with them, but this one was rusted shut, and I got frustrated and gave it a huge tug (giggity) and it broke off. I figure if I start out with non-rusty ones, we'll be all good . __________________ -Ted -1986 Mazda RX7 Sport [DD/beater]: engine finally let go at 205k. parts car status. -1986 Mazda RX7 base [resto-mod project]: S5 n/a swap in progress.