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18-08-2003, 11:38 AM
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#1 (permalink)
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Rev Monkey magazine reader
Join Date: 03-12-2001
Location: "Respect is the ultimate currency"
Posts: 1,792
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Brakes
The story goes...
I bought a replacement for my 180B road car a few weeks ago and the brake pedal felt terrible (goes almost to the floor before anything happens, does NOT 'pump up' and I can NOT make any of the wheels lock up), so I adjusted the rear drums and bled the system. No improvement. So I decide to rebuild the master cylinder... New seals go in, bleed the system up again, check the rear brake shoes (lots of friction material), check for leaks (none found)... Result was only a marginal improvement in the pedal feel and I still can't make any of the wheels lock up... 
So can anyone offer some advice on how to get the brakes to actually work....
And before anyone says anything, yes 180B brakes can be made to actually work, my old 180B brakes worked fine... 
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18-08-2003, 12:45 PM
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#2 (permalink)
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Zoom zoom zoom...
Join Date: 28-04-2003
Location: In the ghettoooooo...
Posts: 6,460
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I can't really offer anything except back to basics.
Bleed all 4 wheels in this order: rear left, rear right, front left, front right.
Check all over for leaks (all 4 wheels, master cylinder, all lines).
Replace the master cylinder with a known good one (not that you can't rebuild a master cylinder, but hey... you asked).
Other than that, dunno.
T.
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18-08-2003, 12:56 PM
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#3 (permalink)
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BMSC Janitor
Join Date: 02-12-2001
Location: Canberra
Posts: 3,908
Rep Power: 94
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Had that problem in the past. Brake booster / vacuum hoses / one-way valve was the culprit.
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18-08-2003, 06:54 PM
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#4 (permalink)
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has an rx2 story
Join Date: 21-01-2002
Location: on another planet
Posts: 1,012
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Is the master cylinder/brakes standard?
The master cylinder wouldn't be too small would it?
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18-08-2003, 07:04 PM
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#5 (permalink)
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Is now carless :(
Join Date: 03-12-2001
Location: Kicking tiny sheep.
Posts: 3,951
Rep Power: 30
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Has it got ABS? 
Wrong master cylinder or rear slave cylinders?
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18-08-2003, 07:08 PM
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#6 (permalink)
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Alpine Choker '09
Join Date: 03-12-2001
Location: Carwoola.
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Quote:
Originally posted by Matt
Had that problem in the past. Brake booster / vacuum hoses / one-way valve was the culprit.
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That's what I told him... OK, I said it was most likely the Booster/Booster diaphragm, but it equates to the same thing.
I've got a Stanza Booster/Master cylinder assembly you could try Bede, to see if it helps. 'Course, I don't know if a Stanza one will fit, but you're welcome to it.
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18-08-2003, 07:55 PM
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#7 (permalink)
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You sunk my battle ship!
Join Date: 03-12-2001
Posts: 125
Rep Power: 11
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Did you bleed the new master cylinder before you bled the wheels ? 
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18-08-2003, 11:32 PM
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#8 (permalink)
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Going back...
Join Date: 19-12-2001
Posts: 1,006
Rep Power: 40
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Bede,
I've nothing more to offer in the way of ideas, but I have got a spare original 180B master/booster if you want another set to try.
(which were working fine before they came off a few weeks ago).
Ta
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20-08-2003, 11:22 AM
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#9 (permalink)
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Rev Monkey magazine reader
Join Date: 03-12-2001
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Well for anyone that is interested, Matt and Fro get the points, the wrong booster appears to have been fitted by someone... 
Damo, I wouldn't mind seeing your original 180B booster to compre it with the one that is on mine.
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20-08-2003, 11:23 AM
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#10 (permalink)
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Something STINKS around here!!
Join Date: 19-12-2001
Location: Fixing someones car!
Posts: 167
Rep Power: 15
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Get some hose clamp pliers out start blocking off brake lines see if the pedal comes good, if not master cyl shagged or give me a ring and I will fix it.
timbo 0438768225
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22-08-2003, 08:05 PM
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#11 (permalink)
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Going back...
Join Date: 19-12-2001
Posts: 1,006
Rep Power: 40
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Bede, sorry, I ve been away for a few days.
No problem, I've got 2 180B ones to compare yours to. Give me a yell on 0428 464 510 if you want to pop around, I should be home most of the weekend (Kambah).
ta
Damo
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23-08-2003, 05:01 AM
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#12 (permalink)
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has an rx2 story
Join Date: 21-01-2002
Location: on another planet
Posts: 1,012
Rep Power: 12
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Whoops...
Statement retracted... I read the right words, but understood the wrong thing.
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