heres my problem
91 ford f150 extended cab front disk rear drum brakes. failed state inspection for equalization. I bought new drums new rotors new pads and shoes. second inspection. failed for equalization. Took truck for new exhaust system. asked them to adjust new brakes for equalization. Returned to state inspection. On way there right rear heated up. let cool off in line. I knew something was wrong. went through anyway. failed again for equalization. drove to parking area of inspection station and backed off right wheel tightened up driver side wheel. drive through and failed again for equalization. I was getting no braking on driver side rear wheel. went home replaced both rear wheel cylinders and passenger side brake line as it was damaged from removal. bled brakes. checked and re-checked that adjusters weren't swapped side for side (Left hand thread, right hand thread) drove truck to somewhat level area across from my home (my driveways on a steep incline) put rear Axel on heavy steel jack-stands and threw it in gear. adjusted both rear wheels to drag slightly and backed off one or two clicks. went to inspection again. Failed. But at least this time i was getting SOME braking on drivers side rear wheel. Took rear drums apart again last night and swapped primary shoes for secondary (front shoe to rear and vice versa). blew out drivers side rear short brake line to check for obstruction. Bled brakes again with aid of neighbor. Asked neighbor to observe which wheel stops spinning first with brake application on stands. Passenger drum always stops first. Pedal feel is OK. Power assist seems OK. I am getting tons of brake on other three wheels. except that right rear wheel is strongest braking. Off the chart according to DMV chart.

Again
New Drums
New Shoes
New wheel Cylinders
New Rotors
New Inner and outer bearings and seals for front spindle/rotors
New Pads
New Passenger side Rear Brake Line

What the heck is going on? Could there be an obstruction on the brake line splitter on the Axel housing? Although I see no evidence of obstruction during brake bleed.

 

what state are you in?? brake equalization?? i thought they were touugh up here in massachusetts. maybye there is a proportioning valve somewhere stuck?? when u bled them you got fresh fluid coming out right?? so the fluid is reaching the wheel cylinder?? its a 91 so no A.B.S??.

 

I'm in NJ. As far as I know there is no proportioning valve between the rear brakes only front to rear and between the fronts. I can only find a "Y" block on the housing. I have yet to remove all three fittings from the "Y" block to blow it out. But the wheel in question bleeds anyway so that wouldn't be it?

I should maybe scan the chart I got from DMV and post it here as an Image.

EDIT. to add. yes there is a rear anti lock system on this truck from a wheel inside the center section. with a sensor on the outside of the housing. The reason I don't think it is the sensor is because with a single sensor and actuator wheel it would effect both wheels not just the drivers side.

 

Click my signature link, go to the Brakes & Hubs album, & scroll down to the photos & diagrams about the rear drums & RABS. The captions to the diagrams explain every phase of operation, for the brakes themselves, the e-brake system, & the autoadjusters. You have to check ALL 3 to get the brakes to work right.

I suspect a stuck autoadjuster or a stuck e-brake cable, but you need to get the shoes installed correctly, too. Refer to the diagrams.

 

checked the above links. Shoes are on correctly. all hardware is in place. Parking brake holds and releases. I will have to let shoes wear in a day as I swapped them. According to your photos I had the primary and secondary shoes swapped. They are correct as of Saturday when I swapped them. The primary shoe lining starts about 4 inches from the top pivot pin the secondary shoe lining now ends about 3 1/4 inches from the pin.

 

i dont know man lol. i cant see a blockage in the line. there is tremendous pressure going thru those every time you step on that pedal. those self adjusters never seem to work right. i pull my wheels and adjust my rears every oil change.

 

I can turn the adjusters with my fingers if i hold the self adjust bracket off the star wheel. So they aren't seized. And if i turn the adjuster star wheel in the direction the self adjuster ratchets it, the adjuster does get longer.