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#Post#: 95963--------------------------------------------------
Bleedin' Brakes
DIR By: beano
Date: February 5, 2015, 3:16 am
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I have been having trouble bleeding the brakes on my 2a 88", it
has a CB type master cylinder, new copper pipes, new wheel
cylinders, my engineer friend has referbed the master, and
fitted a new seal kit from past parts(a good quality kit that
fits well) we have taken off the pipes and re made the ends, in
case of small air leaks, but when you fill it with (dot 4) fluid
the pedal goes down but the cylinder seems slow to return, if
you leave it for 3 mins you can push down again, but each time,
although we push small amounts of fluid through, we have nothing
like a pedel should feel, it goes down to the floor, we tried
another master cylinder, brand new, but concluded that this one
was faulty, it was one of the 'inexpensive' ones, and I am sure
the rebuilt one is correct, and that this is not the problem,
any help most welcome.Thanks.
#Post#: 95965--------------------------------------------------
Re: Bleedin' Brakes
DIR By: Serious Series
Date: February 5, 2015, 3:34 am
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Have you got the free play at the master cylinder set up
properly.
With pedal up help by return spring the pushrod should have 2mm
gap between end and master cylinder piston this is to allow
resevoir valve to open.
#Post#: 95966--------------------------------------------------
Re: Bleedin' Brakes
DIR By: clunk
Date: February 5, 2015, 3:35 am
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I have CB mc fitted and experienced similar difficulties.
HTML http://i718.photobucket.com/albums/ww185/clunkdave/Landrover_series_2_brake_master_cylinder_zps0lzovzfx.jpg
Someone on here suggested that a large air bubble gathers in the
large nut, and suggested jacking up the front of the bus as far
as is safe and having removed the rear wheels drop the rear so
the brake drums are resting on some 2x4 and leaving it for a
day or two pointing skywards so the bubble works it way up to
the reservoir. Worked for me.
#Post#: 95970--------------------------------------------------
Re: Bleedin' Brakes
DIR By: espacekiller
Date: February 5, 2015, 7:26 am
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You may be well aware of this but.
If you are starting from an empty system it can be hard to start
pushing fluid through due to the large amount of air all you do
is squash the air. You could try back bleed from each bleed
nipple, empty the reservoir, use a syringe to push the fluid
from the bleed nipple to the reservoir on each corner. This
usually gets you enough pedal to do a proper bleed and start
pushing fluid through rather than just squish air.
#Post#: 95989--------------------------------------------------
Re: Bleedin' Brakes
DIR By: beano
Date: February 5, 2015, 1:56 pm
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Thanks folks, I will give the 'jacking up' a go first, as that
sounds easier! and maybe follow on with the reverse bleed if
that fails! Cheers for the help.
#Post#: 96002--------------------------------------------------
Re: Bleedin' Brakes
DIR By: Jackual
Date: February 6, 2015, 3:14 am
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I recently had problems bleeding a newly re-build CB brake
cylinder, I had a air lock, no amount of vigorous pedal pumping
would prime the master cylinder, I had to undo the unions and
force fluid into the cylinder using a small Smackheads medical
syringe. Worked a treat. :thumbs:
#Post#: 96035--------------------------------------------------
Re: Bleedin' Brakes
DIR By: urena
Date: February 7, 2015, 4:05 pm
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why the fuck anyone would piss about putting new seals in a wore
out cylinder is beyond me when you can buy a new one for next to
sod all
ya just a tight arse lad lol :smilewide:
#Post#: 96090--------------------------------------------------
Re: Bleedin' Brakes
DIR By: drumlisden
Date: February 10, 2015, 3:30 pm
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--- Quote from: urena link ---
>
> why the fuck anyone would piss about putting new seals in a
wore out cylinder is beyond me when you can buy a new one for
next to sod all
> ya just a tight arse lad lol :smilewide:
>
--- End Quote ---
£700 for a master cylinder :eek:
HTML http://www.lrseries.com/shop/product/listing/1046/520849-MASTER-CYLINDER-CB-TYPE.html
#Post#: 96125--------------------------------------------------
Re: Bleedin' Brakes
DIR By: beano
Date: February 11, 2015, 2:04 pm
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Sorry for very late reply, I did buy a new cylinder, it was very
cheap, less than £20 from memory, and after failing to get it to
work, concluded that it must be nasty as well as cheap!! My
engineer mate cleaned up the old one, which was not too bad
anyway, and to be honest, although I am a world champ tight arse
(guilty as charged!) I like to retain the original as much as
possible, However, landy is currently very head up, and still as
yet no success, although I am going back tomorrow eve to try
again. Someone has offered a power bleeder, and I will give the
reverse bleed a go if that don't work, Cheers.
#Post#: 96127--------------------------------------------------
Re: Bleedin' Brakes
DIR By: urena
Date: February 11, 2015, 2:08 pm
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drumdislam £700 fuckin hell were you buyin yor bits from faberge
lol rofl
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