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Soft brakes
http://auszookers.com/forum/viewtopic.php?f=5&t=24619		 Page 1 of 1
Author:  supa_slim [ Sun Aug 07, 2011 11:47 am ]
Post subject:  Soft brakes
Hey guys
Does any one know what this problem is ?? my brakes are soft but when u pump them they go hard.

I have bleed them several times but it doesnt help at all
Author:  Highway-Star [ Sun Aug 07, 2011 11:50 am ]
Post subject:  Re: Soft brakes
supa_slim wrote:
Hey guys
Does any one know what this problem is ?? my brakes are soft but when u pump them they go hard.

I have bleed them several times but it doesnt help at all



Leak in the braking system?
My LJ80 did this after I first got it running. Eventually had the master cylinder rebuilt as it was drawing in air through it.
Author:  joel [ Sun Aug 07, 2011 11:58 am ]
Post subject:  Re: Soft brakes
maybe master cylinder? but a leak sounds likely.
Author:  supa_slim [ Sun Aug 07, 2011 12:00 pm ]
Post subject:  Re: Soft brakes
Great that will be fun to find

Do u think it would be the master cylinder
Author:  joe5701 [ Sun Aug 07, 2011 12:02 pm ]
Post subject:  Re: Soft brakes
are you loosing fluid?
Author:  supa_slim [ Sun Aug 07, 2011 12:05 pm ]
Post subject:  Re: Soft brakes
Yeah i am not a lot but

I think i comes out of the filler cap though
Author:  joel [ Sun Aug 07, 2011 12:05 pm ]
Post subject:  Re: Soft brakes
supa_slim wrote:
Great that will be fun to find

Do u think it would be the master cylinder

if your not losing fluid, thats what i would start looking at, but im far from an expert on brakes...... or much at all. lol.
Author:  supa_slim [ Sun Aug 07, 2011 12:08 pm ]
Post subject:  Re: Soft brakes
Ive check under the car to see if i could see any leaks but i cant see any
Author:  joe5701 [ Sun Aug 07, 2011 12:11 pm ]
Post subject:  Re: Soft brakes
I would think if it was leaking bad enough to feel it in the pedal you would be topping up the res daily.
Author:  supa_slim [ Sun Aug 07, 2011 12:13 pm ]
Post subject:  Re: Soft brakes
So do u guys think it is the master cylinder then
Author:  Highway-Star [ Sun Aug 07, 2011 12:14 pm ]
Post subject:  Re: Soft brakes
Other common place to check would be your drum brake slave cylinders on the back. Just pull the drums off, and see if there is any sign of a leak in there.
Author:  joe5701 [ Sun Aug 07, 2011 12:15 pm ]
Post subject:  Re: Soft brakes
keep the handbrake adjusted up and you will be fine :steamroller:
Author:  joe5701 [ Sun Aug 07, 2011 12:16 pm ]
Post subject:  Re: Soft brakes
supa_slim wrote:
So do u guys think it is the master cylinder then

good chance, but check it all out to be sure :wink:
Author:  supa_slim [ Sun Aug 07, 2011 12:18 pm ]
Post subject:  Re: Soft brakes
Ok ill do that highway star
Author:  christover1 [ Sun Aug 07, 2011 1:13 pm ]
Post subject:  Re: Soft brakes
clamp off 1 soft line at a time, that will help you locate problem.
Author:  alien [ Sun Aug 07, 2011 1:46 pm ]
Post subject:  Re: Soft brakes
whenever my brakes get spongy my rear shoes are low on meat... i go through rear shoes about every 6-9months!
Author:  SierraDan [ Sun Aug 07, 2011 6:35 pm ]
Post subject:  Re: Soft brakes
alien wrote:
whenever my brakes get spongy my rear shoes are low on meat... i go through rear shoes about every 6-9months!

x2 I just had the same issue and got new shoes and the problem was sorted.. Check rear shoes.
Author:  supa_slim [ Sun Aug 07, 2011 8:57 pm ]
Post subject:  Re: Soft brakes
I changed mine about 7 months ago
I'll have a look tonight
Author:  S_M_I_D_D_Y [ Mon Aug 08, 2011 7:16 am ]
Post subject:  Re: Soft brakes
Having similar problem, my zook had soft brakes which got harder if you pumped the pedal a few times, one time last drive after a steep downhill they felt very touchy and firm like they should, that went away pretty quickly though. they are not leaking fluid anywhere, and i had it parked for 2 weeks and then fitted new pads on weekend in front end so pressed the caliper piston back and now they wanna go to the floor first touch you can pump them up and they feel better but soon as u drive the pedal goes to floor again. if you pump the pedal it feels like the engine wants to stall when idling. i have bled them twice now with no success.

any ideas??
Author:  SierraDan [ Mon Aug 08, 2011 7:18 am ]
Post subject:  Re: Soft brakes
S_M_I_D_D_Y wrote:
Having similar problem, my zook had soft brakes which got harder if you pumped the pedal a few times, one time last drive after a steep downhill they felt very touchy and firm like they should, that went away pretty quickly though. they are not leaking fluid anywhere, and since last weekend i had it parked for 2 weeks and then fitted new pads in front end so pressed the caliper piston back and now they wanna go to the floor first touch you can pump them up and they feel better but soon as u drive the pedal goes to floor again. if you pump the pedal it feels like the engine wants to stall when idling. i have bled them twice now with no success.

any ideas??

rear brakes shoes. is the handbrake shit too?
when ya comin' over!! :helloo:
Author:  S_M_I_D_D_Y [ Mon Aug 08, 2011 7:30 am ]
Post subject:  Re: Soft brakes
gday mate. yep well im tearing rear diff apart tomorrow, so will check those out then. just waiting on the mrs to turn up and ill head out
Author:  supa_slim [ Tue Aug 09, 2011 10:43 am ]
Post subject:  Re: Soft brakes
HaD a look at the rear brake shoes Tonight and they are rotted..
Author:  SierraDan [ Tue Aug 09, 2011 11:38 am ]
Post subject:  Re: Soft brakes
yay!
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