first deuce with brake isseu

[marcel 01]

Hi , I'm the proud owner of my first deuce but I have a breaking problem.
I've replaced two breakcyl. and bled the system, the breaks are working but still the breakpedal hits the floor when I'm breaking. Does anyone have a suggestion what else I could try?
Greetings Marcel (The Netherlands)

 

[ralph3162]

It either needs more bleeding or you could have a bad air pack.

 

[hndrsonj]

Did you bleed the air-pack first and are you using DOT-5?

 

[hndrsonj]

I would also build one of these. http://www.steelsoldiers.com/showthread.php?3229-Deuce-Power-Bleeder-R4x4-Style

 

[marcel 01]

thx for the response
I did the the airpack first and bled it 3 times, there are no air bubbles to see .
even when pumping the pedal it doesn't get higher I think it isn't adjusting the breaks either.

 

[marcel 01]

and i did use the subscribed silicon us army brake fluid.
and overhauled the master brake cyl.
could the air pack have a internal leak?

 

[Jeepsinker]

It could have an internal leak. Do you have the long style or short style airpack? If you have a long style there is a small 1/8" npt plug in the cap of the air cylinder you can remove and see if brake fluid drains out or blows out when you push the brake pedal. If you try to blow it out the truck must have air pressure.

 

[sandcobra164]

If you have no bubbles, you need to adjust your brakes. They are not self adjusting. There are four cam bolts on the backing plate that you use to adjust. The two up top are your ¨major adjustment¨ and the two on the bottom are your ¨minor adjustment¨. Please look in the TM's or search on here for the adjustment procedure. It's pretty easy as most of these trucks have open diffs. Just lift both sides of the axle you're working on, spin and adjust until you feel a slight drag and then release that one just a tad.

 

[frank8003]

Does anyone have a suggestion what else I could try?
Greetings Marcel (The Netherlands)

Send pictures

You have to help us help you
Did the brakes function properly before and not now?
Did you have "some " brakes and not now?

.......a good way to "cheat" is to attach 90-100 lbs air into the starboard glad hand fitting from a compressor then you can play with the brakes all day with the engine off and listen at each wheel for brake shoes function. Get someone to operate the brake pedal while you listen to each wheel. One can find the leaks and malfunctions easier that way.

When adjusting shoes remember you are dealing with needed .380 mm clearance and do not turn the adjusters the wrong way. Do not force the adjusters.
View attachment brake adjuster fix IMG_3045.MOV

 

[marcel 01]

Il try to make some pictures asap. I start with adjusting the brakes and work up from there.
thx for sharing the knowledge.