brake bleed, only a silly one

[johnono]

lads, im doing brakes tomorow. both back calipers off,swapped with new ones, changing discs allround and pads of course

do i bleed back left, with fluid cap off? or close the brake fluid cap and do the first one

also, if i put the car up on one corner and bleed it from there do i still have to do all round,?

the reason i sound whiney is coz the front 2 calipers are old, and i dont think ill be able to undo the bleed valve on them without rounding them first

whats the verdict?

[Brianmoooore]

If you clamp the flexi hoses as you change each rear brake caliper, then remove the clamp and open the bleed nipple on the caliper untill brake fluid drips out, then you probably won't need to bleed them at all.
Don't let the m/cylinder run out of fluid thogh.

[johnono]

ah, problem is im changing the flexi hoses too

and what happens if i let the master empty of fluid

[Brianmoooore]

Take off the m/cylinder cap, fill it to the top, place a piece of clingfilm across the top and fit a plain cap without a level sensor. (clutch cap fits IIRC). You should be able to work on the system , one side at a time without losing fluid.
If you let the m/cylinder empty you will have to fully bleed the whole system a few times to get rid of all the air. Can be a problem if you get air in the ABS unit.

[johnono]

nice one brian, like the vacuum lid idea
i dont have abs (2nd class ) so im ok there, but if i have to stick my finger in the hole to stop it coming out then so be it

thank for coming through there geeza, can always rely on u