Brake bleed screws thread size?

should be M 8x1.25 and 35mm long

You might think about replacing them with speed-bleeders.

quote:

Originally posted by Husker:
You might think about replacing them with speed-bleeders.

I have not used them yet, but have them ready
http://www.speedbleeder.com/
SB8125 need 6 for brakes calipers
SB6100 for the clutch slave

Many thanks Mat_G

Cheers Tim

quote:

Originally posted by Mat_G:
should be M 8x1.25 and 35mm long

This may be a dumb question but what changes when you back it out 1/4 - 1/2 to enable bleeding to work? That's not obvious when looking at the pictures on the website.

The tapered seat on the bottom of the bleeder is no longer plugging the orifice (and mating seat) at the bottom of the bleeder well.

Brake fluid is free to flow up to the hole, and back suction is prevented by the spring loaded ball.

The threads provide enough of a seal to prevent air getting in that way.

Rocky

I take it you mean how do you prevent air from re-entering the system? A ball check valve is installed.

Uses a check valve, fluid only flows one way. I have them on 4 cars wouldn't' think of using anything else.

quote:

Originally posted by RRS1:
Uses a check valve, fluid only flows one way. I have them on 4 cars wouldn't' think of using anything else.