cymtriks
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| posted on 9/11/03 at 07:53 PM |
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brakes don't work! please help
Can anyone help...
I know someone who is building a Fisher Fury. It has been a tale of niggling problems. The latest is that the brakes do not work properly. Pumping the
master cylinder sends fluid down the pipes but the pressure is minimal. The problem seems to be the joints but these are properly flared and
tightened. The brake pipe is softer than ordinary cars so possibly the flared out bulb on the pipe ends is deforming under load and leaking. Other
cars appear to be fine though. Is there a special precaution that needs to be used with the softer kit car brake pipe?Any thoughts on what might be
wrong?
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Mark Allanson
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| posted on 9/11/03 at 08:38 PM |
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ChrisG had a similar problem, a blocked flare was the cause
If you can keep you head, whilst all others around you are losing theirs, you are not fully aware of the situation
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Marcus
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| posted on 9/11/03 at 08:58 PM |
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I'd agree with the blocked flare, sometimes when you cut a pipe with a hacksaw you get a burr, if this isn't removed it can cause a
blockage. It's best to use a small plumbers pipe cutter, that way you get a nice clean, burr free cut.
But your mate has already done the deed, so you need to find the blockage by removing all the pipes and blowing them through. Tedious, I know, but the
only way. I hope it's not got into the MC!!
Marcus
Marcus
Because kits are for girls!!
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Peteff
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| posted on 9/11/03 at 09:08 PM |
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Pressure is always minimal till all the air is out of the system. Start with the longest pipe run then work back to the nearest to the master cylinder
making sure that the bleed is locked before the pedal is released each time, or better still use an auto bleed kit. Brake pipe is brake pipe, whether
it's for kit or ordinary car, copper or steel it has to conform to BS.
yours, Pete.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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Hornet
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| posted on 10/11/03 at 10:37 AM |
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Some systems can be air locked when first filled. It would be good to try a pressurised bleed system. Most good garages have them.
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chrisg
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| posted on 10/11/03 at 07:58 PM |
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Yes, the old flare had broken off and blocked the front N/S pipe.
I hate Brakes
I've since discovered that the M/C push rod wasn't long enough as well, something to check.
Cheers
Chris
Note to all: I really don't know when to leave well alone. I tried to get clever with the mods, then when they gave me a lifeline to see the
error of my ways, I tried to incite more trouble via u2u. So now I'm banned, never to return again. They should have done it years ago!
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bob
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| posted on 10/11/03 at 10:06 PM |
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I had an air lock on my rear calipers,took me ages to work it out.
In fact i think it was chrisg who pointed me in the right direction,i had to unbolt the caliper and roll it to 12 o-clock on the disc to bleed.I dont
have the facility to pressure bleed which i think is probably the best option.
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