Hallo, first I am a newbie on this platform an d I am Dutch, sorry for my poor Englisch.
My Bedford J5 has problems with the brake, the pedal goes lina directa to the floor, w.o functions.
I found out the brake booster is not good, it shows problems for a very long period of bad maintenance.
There is a pipe housing on the mounting house of the brake booster, no connecting, air in and out free. What is the function off this connection?
Not sure if this will answer your question?? The older boosters need fresh air to operate. the fresh air (14 psi) pushes against the diaphragm as the vacuum pulls it.. My 1955 Ford F-600 vacuum booster has a fresh air hose which comes up behind the seat with a filter on it.
Yes, it`s possible the booster needs air outside. But I am not sure they need an one way valve too? Only air in...?
Then an other question, is it possibble to activate the brake system w.o brake booster? You need more muscle for your leg...good training plan. The vacuum pump working great and the ballast tank don`t have leakage`s. I don`t know it is an easy job to rebuild a brake booster and where can I find seal kit?
Yes the brakes will work without the booster......the system is designed to work without the booster ,if it fails........However ,if the pedal goes to the floor ,the trouble could be anywhere from master cylinder fail,booster fluid leak, leaking pipe to a wheel cylinder leak.......typically ,if the truck is in poor condition ,the brakes must be gone right thru to make them work at all.
Hello Dutchman, I do not know why my message sent itself to the forum while I was in the middle of typing it.
Each wheel cylinder may need dis-assembly and a new kit fitted and possibly one or more wheel cylinders may require honing or if the bore is not smooth, it may need re-sleeving. We usually have stainless steel sleeves made and fitted. A brake repair business in your Country will be able to advise you on the process.
I have my shoulder to the wheel,
my nose to the grindstone,
I've put my best foot forward,
I've put my back into it,
I'm gritting my teeth,
Two sources in the UK, which is a bit closer to Dutchman in the Netherlands:-
1) Norman Aish to be found at bygonebedfordbits.co.uk for parts including the J type.