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Aug 24, 2012 | 03:56 PM

77 2wd

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Brakes

I went to swap my truck to PB, i added the circular booster to the firewall then the master cylinder on top of it, hooked the little rod with the circular thing up to my brake, but the brake has no power to it, and the cylinder is full of fluidd, i push the pedal it has no power and it wont return, any advice? the Pb i got was off of my 78 f150 i put it on my 77 f100

Aug 24, 2012 | 04:12 PM

mikeo0o0o0

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Joined: Apr 2009

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From: Stanley, VA

Is the vacuum line hooked up? And did you bleed the brakes after installation?

Aug 24, 2012 | 06:12 PM

77 2wd

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yeah, and no, didnt think i needed to since the cylinder and lines were already full?

Aug 24, 2012 | 06:30 PM

HIO Silver

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Joined: Dec 2009

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From: NorCal

So lemme see if I understand correctly... you simply slid the booster btwn the MC and the brake pedal without disconnecting the hardlines from the MC, right?

Aug 24, 2012 | 06:44 PM

NumberDummy

Ford Parts Specialist

Joined: Nov 2006

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From: Simi Valley, CA

Quote:

Originally Posted by 77 2wd

Did you change the brake pedal when you made this swap?

1973/79 F100/350: There are TWENTY TWO different brake pedals, NINETEEN different power brake boosters, SEVENTEEN different master cylinders and SEVEN different clutch pedals, I kid you not!

Whatever you took the booster from, you need the brake pedal that matches it.

Aug 24, 2012 | 06:48 PM

f5fordgirl

Fleet Mechanic

Joined: Apr 2012

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Are you sure the little rod that operates the master cyl stayed in the booster? That rod is adjustable, and needs to be adjusted to the proper length to make the master cyl work.