Brakes too tight

[sand rider]

alrighty, so, i put in my new brake master cylinder. everything went in right, filled i put with new fluid, bled the brakes till i had no air in the lines. but now,after driving it a bit, they get soo tight, that i have to put it in low gear to drive it. what should i do?

 

[nhfj40]

4 wheel drum front disk rear drum what do you have

 

[rgentry]

Adjustment between the brake pedal rod and the master cylinder
might need to be checked. If the setting is not right, then the
master cylinder might be constantly pushing the wheel cylilnders.

 

[Jukelemon]

Says 68 nearly stock so we can assume all drum. Did you check/adjust all of your cylinders? Why did you replace the MC?

 

[Paul_A]

Any chance you got a M/C for a front disk set up?

 

[sand rider]

i got an oem master cylinder for all drums.

 

[sand rider]

how do i adjust each brake? would the pedal constantly be pushing on all wheels if it was cold also?

 

[peesalot]

adjust the brakes with the wheels on and tight.
Your master has 1 or 2 resiviors ?

 

[sand rider]

it has one
How do i adjust the brakes? is there a valve i need to tighten or loosen?

 

[peesalot]

you get under truck , look at the backing plates , there will be 2 vertical slots in it , these slots have toothed wheels inside that are the adjusters for the wheel cylinders .
insert screwdriver and engage teeth then rotate wheel either way.
Moving the handle of the screwdriver towards axle tube will loosen shoes
moving handle away from axle tube will expand the shoes.

 

[sand rider]

do you have any pics?

 

[honk]

If all you did was change the m/c the brake adjustment should be the same as before. With a new m/c you may need to adjust the rod coming out of m/c - there can be slight differences between new and old cylinder.

Did you put the return spring back on the pedal?

It sounds like your brakes are being applied all the time - look to whatever changed since they weren't.

 

[sand rider]

i think it is because the old master cylinder was really weak, so my mechanic made the brakes more responsive to make up for it, and now that there is a new one, the slightes amout of pressure is a huge load for the brakes.... maybe, just a shot in the dark