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Quote:
Originally Posted by mh_merc
It all started with a pair of leaking wheel cylinders on my '47 Marmon-Herrington/Merc woodie, equipped with a Chevy 350 and Hydrovac booster. After battling with a bunch of repro crap and several adjustments and system bleeding, we ended up with 4 good cylinders, properly fitting shoes, new rubber hoses, new master cylinder and a firm pedal with the right amount of free play.
It all worked fine on the way to our local C & C today, but on the way home - about 5 miles - the pedal got higher and higher. Finally back home, there was about zero free play, the brake lights were stuck on, and I couldn't budge the car with a push. After about an hour, I checked it again and everything was back to normal.
I suspect something blocked or stuck in the booster, since it's the only component we didn't replace...any ideas?
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any update!!! 7 can be a lucky number being your post num to this point.
Sounds like fluid expanding under heat or.... that sbc! ha ha
ya I do that.