brake woes...
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Lead Driver
Joined: Jul 2011
Posts: 8,678
Likes: 191
From: On the Edge of the Desert
brake woes...
ive got a problem. the brake pedal travels about 2 inches before any firmness is reached then it still doesnt stop the truck well at all.
this is after ive taken all four corners apart and cleaned up the drums shoes, and took the wheel cylinders apart and made sure they were clean and good.
i bled the brakes(a couple times), master, adjusted the rears, all that. still doesnt do much.
so,,, am i missing something here? its not blowing fluid out anywhere.
could the master cylinder be bad?
its getting frustrating after playing with it for days and not getting any better.....
this is after ive taken all four corners apart and cleaned up the drums shoes, and took the wheel cylinders apart and made sure they were clean and good.
i bled the brakes(a couple times), master, adjusted the rears, all that. still doesnt do much.
so,,, am i missing something here? its not blowing fluid out anywhere.
could the master cylinder be bad?
its getting frustrating after playing with it for days and not getting any better.....
Lead Driver
Joined: Jan 2003
Posts: 9,893
Likes: 12
From: Ohio
Might be a master cylinder issue if it won't build any pressure after pushing it 2".
Might want to visually inspect for fluid at all for corners, have someone push the pedal and you watch to see that fluid is coming out as soon as the pedal starts down.
Could just be a touch of air still in the line somewhere.
Might want to visually inspect for fluid at all for corners, have someone push the pedal and you watch to see that fluid is coming out as soon as the pedal starts down.
Could just be a touch of air still in the line somewhere.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
OP's "About Me" profile sez 1971 F100 which would not have come with disc brakes originally, as 1973 was the first year F100's (2WD) came with discs.
But, the OP's truck does have a brake pressure differential proportioning valve, as all 1967 and later FoMoCo vehicles w/dual master cylinders came with one.
But, the OP's truck does have a brake pressure differential proportioning valve, as all 1967 and later FoMoCo vehicles w/dual master cylinders came with one.
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Lead Driver
Joined: Jul 2011
Posts: 8,678
Likes: 191
From: On the Edge of the Desert
oops, yes they are drums and it is a 71.
i might try the power bleeder.
the fronts bleed out pretty good, but the rears take a second to push fluid out. but i can hear them actuating right away..... maybe i just need to keep going.
i might try the power bleeder.
the fronts bleed out pretty good, but the rears take a second to push fluid out. but i can hear them actuating right away..... maybe i just need to keep going.
Lead Driver
Joined: Jan 2003
Posts: 9,893
Likes: 12
From: Ohio
Open a rear bleeder and give it a few minutes to try gravity bleeding. Should start to seep out. Do one side then the other.
This is what I use to bleed brakes. Works really well for one person.
Loosen bleeder, slip on hose, then pump brakes a few times(til the cup is near full). Close bleeder and refill master cylinder. Go to next wheel.
This is what I use to bleed brakes. Works really well for one person.
Loosen bleeder, slip on hose, then pump brakes a few times(til the cup is near full). Close bleeder and refill master cylinder. Go to next wheel.
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Lead Driver
Joined: Jul 2011
Posts: 8,678
Likes: 191
From: On the Edge of the Desert
i talked to the brakes instructor at the tech school and he suspected a bad master cylinder. (ive been suspecting it too)
so i bought a reman for $16 and ill be putting that on this afternoon. hopefully that will resolve the issue.
worst case it doesnt and i have a new master with a better lid. (mine is close to rusted out)
so i bought a reman for $16 and ill be putting that on this afternoon. hopefully that will resolve the issue.
worst case it doesnt and i have a new master with a better lid. (mine is close to rusted out)
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