R34 Brake Problem :(

[JEDJET]

wondering if anyone could shed some light on my problem,

remove my calipers for painting as they were looking a little bit faded. sealed them all up perfectly before cleaning / painting.

hooked everything back up but now i cant seem to draw fluid down from the master cylinder down the lines to the calipers....?

tried everything i can think of but nothings working....

can only narrow it down to either that

a) master has some how died over a week of not being used

b) lines are blocked (all four? even though they were fine before hand)

c) im doing something wrong....

is there a special bleeding method like bleeding at the ABS control first or what???

i tried regular bleeding and it would work however the pistons inside the calipers arent moving and its not drawing any fluid.

any help or tips would be muchly appreciated.

[StevenCJR31]

jeez i wouldve painted them calipers on the car. . . . sounds like you have an airlock in the lines, does the ABS have bleeder screws on them? if so maybe bleed that first and then the brakes in sequence

[GTRPSI]

Are you opening the bleed nipple while someone pushes the pedal to the floor, closing the bleed nipple and then telling the person pressing the brake pedal to release it?

This ensures when the pedal is lifted that fluid gets drawn out of the resivour rather than air drawn back in from the bleed nipple, make sure the bleed nipple is closed before the brake pedal is lifted.

It can sometimes take a few goes to eventually get the air all out.

One other thing, some bleed nipples can need to be opened a little more than normal, just try to avoid getting any brake fluid over your newly painted calipers.....

When we took our calipers off for painting and the fitting of new seals and braided lines a few weeks ago, it took a bit of time to get the fluid coming out of the calipers bleed nipples.

Edited February 1, 2012 by GTRPSI

[GTSBoy]

Yuh, that's why a pressure bleeder is a good thing.

[JEDJET]

ive bled them before and it worked perfectly, ill try moving along the lines slowly and see if that works.

[JEDJET]

okay so ive put it down to the master cylinder....

is there a difference between a r33 / r34 master cylinder or can you run either?

[GTSBoy]

Don't stuff around with 2nd hand masters. Just get yours kitted with a new stainless steel sleeve.

[OYEAHA]

Did you put the calipers on the right way around ?

[Aggroman]

okay so ive put it down to the master cylinder....

is there a difference between a r33 / r34 master cylinder or can you run either?

If you get a 33 gts-t master from an ABS car they are the same(only has 2 holes not 4) and will be labelled BM44.. if you cant be arsed I have a whole master and booster setup sitting around that I will sell for cheap.

[JEDJET]

Thanks bud'

I pulled my old one apart and found the seals to be very swelled.

Nissan wanted 426 for a new one so I went to Paul and got one for 70 bucks. Works perfectly