Touchy power brakes

The Era of The Square Body Racing Comets
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billybob
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Joined: Mon Jan 01, 2018 6:23 pm

Touchy power brakes

Post by billybob »

I have a 65 Mercury Comet Caliente. Power brakes with single master cylinder with drum brakes all around. Far as I know it is a stock system. 289 automatic. My problem is that the power brakes are super touchy and then at other times it will feel like I don't have power brakes at all. It stops but you have to push fairly hard on the pedal. Most of the time though I have to very gently push on the brake. Any ideas? Thank you.
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SASSY
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Joined: Sat Jan 07, 2006 12:32 am
Location: Wynndel, BC CANADA

Re: Touchy power brakes

Post by SASSY »

Seeing as the power assist is produced by vacuum from the motor I'd be checking the vacuum line, maybe pull it out and clear any possible obstruction, check for cracks.
I don't know how to check the diaphram.
Fred
I'd rather do it myself if it's done right or not,,,isn't that what hotrodding is all about

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