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brake booster - 57 tbird

This is a discussion on brake booster - 57 tbird within the Early Birds [1955-1957] forums, part of the Thunderbird Model Years category; What is the purpose of the brake booster and how does it work?...

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Old 06-08-2017, 08:55 PM
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valhalla4771 is on a distinguished road
brake booster - 57 tbird

What is the purpose of the brake booster and how does it work?
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Old 06-10-2017, 11:36 PM
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fordrodsteven is on a distinguished road
You could google it and it will give you some information but I don't know if it's what you are looking for.
The Booster is actually a brake assist. It connects to vacuum on the engine. There is a diaphragm inside the booster can. When you step on the brake pedal. The booster (working from the engine vacuum) helps add pressure out to the wheel cylinders. Another way to think of it is that it is actually a multiplier of the pressure which is applied from the master cylinder due to the action of you stepping on the brake pedal.

Sometimes when guys put a larger lift cam in their engines the engine develops less vacuum thereby causing the brake to be harder (it acts more like a manual brake rather than a power brake). There are booster pumps available (usually at speed shops or online at the high performance sites like Speedway or Summit)
Steve - CTCI # 37081
1955 Tee-bird modified, 88 Reatta, MOPAR11 #735
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