Brake issues....

[welldigger]

Here is an update on the brakes,

I rebuilt the air pack from an NOS kit, found out i have the A3 short style. I completely drained and leaned out all of the dot 5 from the brake lines. Say what you want but i switched over to dot 3 due to the amount of brake fluid i was consuming in my attempts to find the issues. Still have the same issues with the brakes, Yes my pads have adequate friction material on them, and i ajusted them per the TM.


I am running into the same issue again, with the new MC and the rebuilt air pack.


Dose any one have an exploded view of the new short style air pack?


Thanks,
Kevin

So have you checked your wheel cylinders? Did you bleed in the correct order?

Was your rebuild kit for a short style air pack? The short and long style rebuild kits are NOT interchangeable.

 

[stanky johanson]

Yes i have a solid stream of fluid when i bleed the air pack, Wheel cylinders are leak free and working, Belleding order was AP,RR,LR,RM,LM,RF,LF

USed one gallon of fluid to bleed the system.

Yes, I found out the hard way when i bought a kit from a ss member and it was wrong, how ever another ss member in Ohio over nighted me a short style kit.


Jeepsinker, im rather ocd about my PM, and i change fluids atleast twice a year, Thank you for the tip though.

 

[Jeepsinker]

So you still aren't getting any pedal at all?

 

[welldigger]

When you say you have no brakes you mean? Tell us the specific symptoms. Even things that may not seem like they matter.

 

[stanky johanson]

I get a rock hard petal, Can not push it down pas 1 inch. with no stopping power.

 

[gimpyrobb]

Have you watched the soft lines? Sometimes they go bad and balloon with pressure.

 

[Jeepsinker]

And you bled the front two wheels in the wrong order...

 

[welldigger]

And you bled the front two wheels in the wrong order...

That doesn't matter. Trust me.

 

[gimpyrobb]

I posted while you were.

Have you verified the air pressure going to the air pack?

It can't "assist" w/o pressure.

Edit, so now your brake problem is air pack related only.

 

[welldigger]

I get a rock hard petal, Can not push it down pas 1 inch. with no stopping power.

Those are the exact symptoms my truck had when I got it.

Most likely an air pack issue. Mine was rusted up solid. I know you just rebuilt yours.

 

[Jeepsinker]

If you have good pedal then it isn't an issue with air in the lines. You still have an air pack malfunction.

 

[Jeepsinker]

Hah, you got all three of us on this thread like flies on a fresh turd now.

 

[stanky johanson]

LF,RF? I will have some one look at the soft lines in the am, When i have had soft lines go bad they would swell and hold the pressure.

I drained the air taks and tried the pedal a few mins ago, Pedal gets soft and gos to the floor, pump the pedal three times and i began to get some stoping power, as soon as i let the truck build air the pedal gets rock hard again.

 

[stanky johanson]

Well its good to know i have friends down in the swamps of LA LOL

 

[gimpyrobb]

Don't bother with the soft lines if you get a hard pedal. It has something to do with the air pack.

 

[stanky johanson]

Trust me, that air pack is now cleaner and tighter than most girls in my area.

 

[Jeepsinker]

There is a 1/8" npt plug on the air cylinder cap. Remove the plug, thread in a nipple, attach a length of hose to it with an air pressure gauge if you have one. Let the truck build air while you are in the cab and then press on the brake pedal and see what the gauge reads. Kind of sounds like you are getting air on the wrong side of the piston though.

 

[welldigger]

When you push the brake pedal and let go do you hear a loud hiss?

 

[stanky johanson]

I dont mean mean to sound stupid, but on the short style pack like i have i have not seen a plug any hwere on it. I know there is one on the long style, just not on the short.

 

[stanky johanson]

When you push the brake pedal and let go do you hear a loud hiss?

Yes, i can pres the pedal and release it and hear the air bleed off.