Brakes getting hot after rear brake overhaul

[padresag]

what brake fluid did you add? what type? some are not compatible with others.
ron

[jrusher]

Originally Posted by chevylookin

You should: Open the top of the MC and get someone to pump the brakes and visually confirm that fluid is coming back into the MC when pedal is depressed. It should shoot up like a fountain after a hard press. Also, you need to take the rear wheels and drums back off and just do a visual confirmation. Are you ABSOLUTELY sure you reinstalled the springs right? Are they new or old springs? If new, are you sure they are the right size/ length? Did one of the old springs break after reinstalling the drum? Are you absolutely sure you put the the corresponding long and short shoe in the right position- front/back? It is even possible that one of the pistons in the one of the cylinders has wobble-logged itself inside the chamber on one of the wheels. When you go driving before they lock up, are you getting even braking? What does it smell like? Smells like tires and asbestos on fire? Then, youre gonna have to open everything up again. Disconnect the rear flex line at the brake cylinder side and get your friend to pump it and visually confirm juice is coming out. Then, do the same procedure at each rear wheel with the cylinders off. When you have these phantom problems, you have no choice but to start doing the aggravating, elementary and time consuming trouble shooting methods once all the simple checks have uncovered ???'s. I had a 71 Longhorn do a 360 on the 22 freeway down here going 70 mph one time because I had uneven braking that I just wrote off as no big deal. After that, and a new pair of underwear, I ripped that whole thing apart and found... a logged piston in the right rear cylinder. I am a firm believer in if you replace one wheel cylinder, you replace them all. I have replaced one before, came out the next day to see a puddle of brake fluid coming from the opposite wheel because the weak cylinder goes afterwards. But you say you are replacing the front system soon. If the I.D. on the inside of the drums is a little different from side to side, no big deal. The system will compensate for that but if the surfaces are scored, cracked or wobbley, you will definitely feel it in the pedal with pulses and kick backs. Stop scratching your head and open everything up again!

Brake shoes are on correct, all new hardware installed correctly, shoes return to normal position after pedal is depressed. Going to test and confirm master cylinder is working correctly and also check pedal free play when i have a chance. Im swapping in discs up front/booster etc and power steering and suspension in the next week or so might just tear it down now

[jrusher]

Originally Posted by padresag

what brake fluid did you add? what type? some are not compatible with others.
ron

Dot 3

[chevylookin]

Originally Posted by jrusher

Brake shoes are on correct, all new hardware installed correctly, shoes return to normal position after pedal is depressed. Going to test and confirm master cylinder is working correctly and also check pedal free play when i have a chance. Im swapping in discs up front/booster etc and power steering and suspension in the next week or so might just tear it down now

Everybody here wants a breakdown of the results when you finally get the problem solved. Even if it is one of those light bulb turning on moments when you discover you did something silly. (Not saying you did) I have done it 100 times and love laughing at myself. It is remarkable I havent gotten myself killed with some of the beer induced moronic moments I have put myself into. 99 of the time it something so simple overlooked. As of now, with what you have told us, I am saying you must have a malfunctioning MC. The truck knows and can smell money in your pocket. It is a strange phenomenon. I have also after beating my brain to a pulp found some first-time-in-history issues that even the most well trained mechanic could have never evaluated until he just decided to get his hands dirty again. Please let us know as soon as possible. Im dying to know what the diagnosis is!

[jrusher]

Yup i'll post what i found Im pretty sure its the mc as well or something else i overlooked

[jrusher]

Well checked pedal for free play and had none gave her some clearance and all good now