Brake Issue 81 Camaro 454bb - Team Camaro Tech
Brakes, Suspension & Steering Conversion questions, Steering & Handling

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post #1 of 3 (permalink) Old Jun 12th, 19, 06:46 AM Thread Starter
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Join Date: Jun 2019
Posts: 39
Hi All, so I recently purchased an 81 Camaro (from out of state) and once I had it shipped and delivered one thing the previous owner failed to mention is that the brakes didn’t work. Disk front, drum rear.
Looks like the pads are good and it has an added vacuum pump for the big cam.

Here’s what’s happening. I drive down the street (very slow I may add) and push the brake peddle down all the way to the damn floor board and the car barely slows down. It’s not a “hard” brake. Feels kind Of normal feeling, but the car just doesn’t stop.

Initially I thought because of the cam it needed an electric vacuum, but I see that’s clearly installed. Brake pads look good all the way around. Maybe the added vacuum pump is failing or is a cheap one and not strong enough to keep up with the 454bb and I should upgrade it? Or maybe the brake booster/cylinder?

Anyone else experience this? If so what was your solution?

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post #2 of 3 (permalink) Old Jun 12th, 19, 06:48 AM Thread Starter
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Brake *pedal (just saw the typo) lol.
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post #3 of 3 (permalink) Old Jun 12th, 19, 07:22 AM
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Location: Tampa, Florida
Posts: 4,725
Re: Brake Issue 81 Camaro 454bb

Take it to your local brake shop and have it power bled to replace the brake fluid with one type (Dot four or DOT five) and be assured that there is no air in the system. Because you have new pads and a vacuum pump you know the previous owner has been playing with the brake system.

Once you have fresh fluid and no air in the system you can diagnose any other problems (such as a smaller vacuum diaphragm to clear cosmetic fashion statement tall valve covers), or a leak in the vacuum system in the plumbing of the hoses, or the lack of a tank to hold the vacuum built by the electric vacuum pump (called an accumulator).

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