i have a 57 f100 i replaced my rear wheel cylinders cause they were both leaking i bleed the brakes and the truck would bearly stop and i had them adjusted and now the brake pedal is real stiff what would it be do i need to bleed them again or what can be causing this has brand new brake master manual brakes no brake booster

FORD IS LIFE OIL N GAS IS MY BLOOD

The problem you are experiencing sounds more like your flexible hoses or brake line are blocked.

Bleeding your entire system should show up what hose or line is the problem. If you find the fault is one of the flexible hoses, you could replace the faulty one. Personally I would replace them all if they are not new.

I presume you still have the original style brake master cylinder fitted with drum brakes all round.

It could be other things causing the problem, but this will at least give you somewhere to start.

Regards

Rick - West Australia
Do Y Blocks Downunder run upside down? Gravity Sucks!!

do you have all drum breaks was there any clearance from the brake peddel rod to the back of the piston on the master cylinder, it my not be allowing the piston to return all the way back to relieve applied fluid pressure to return to master cylinder this will cause pressure to keep building up until your brakes lockup hope the helps Shakey Pete

everything was fine untill i adjusted them b4 i adjusted them the brake pedal went down after i had them adjusted the problem started

FORD IS LIFE OIL N GAS IS MY BLOOD

My vote goes with rick55. I replaced everything brake related on my 57 except the flex hoses and experienced the same issue. New hoses cured the hard pedal.If they have never been

replaced, I would start there. Good luck.

when yor peddel is hard is there any free play shakey Pete

Replace the rubber hose. I just installed disc brakes on my bird and Could not bleed the rear brakes. The rubber hose was the problem. They seem to block quickly . Disconnect the line going to the hose and have some one pump the pedal . Thats what I did to find the problem.

55Birdman  Hickory NC

iv bleed the brakes b4 and it always came out smoothly always comes out clean

FORD IS LIFE OIL N GAS IS MY BLOOD

If you have fluid flowing the next thing would be the rod in the master cylinder isnt allowing the plunger inside to return to full open position. Or the master cylinder is bad.

55Birdman  Hickory NC

the pedal is pretty high up if the master was not working i think the little piston would be pushed in right and not coming coming in my case i think its not being pushed in

FORD IS LIFE OIL N GAS IS MY BLOOD