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?

ChrisG had a similar problem, a blocked flare was the cause

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

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.

Some systems can be air locked when first filled. It would be good to try a pressurised bleed system. Most good garages have them.

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

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.