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Old 02-01-2002, 07:42 PM
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Post Help..Power Brk Boost. Vac.

Hey Rodders....have any of you experienced problems with developing sufficient vacuum to support proper brake booster operation. E.g., has your radical cam affected vacuum to the point of loosing some power brake booster performance. Also, what do you guys think should be minimum vacuum...I've heard anything from 15 to 20 on the vacuum gage. Finally, has anyone installed a 12 Volt vacuum pump in place of manifold vacuum to power the brake booster and if so where did you find the pump?

[ February 02, 2002: Message edited by: 454impala69 ]</p>

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Old 02-02-2002, 03:29 PM
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I have seen those pumps for sale before, can't remember for sure where . It might have been the Jegs catalog. Go to <a href="http://www.jegs.com" target="_blank">www.jegs.com</a> and see. The diesel pick-ups use a vacumn pump of some sort because diesels don't have vacumn to work power brakes, so you might check with a dealer and see what the set-up is there. I know electric vacumn pumps are available because I have seen them on some streetrods.
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Old 02-04-2002, 08:37 PM
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Scott that should be enough vacumn to work your brakes. if I were you I would check and see if the check valve at the booster is good. I would also check and make sure the booster does not leak. Turn the car off at night and in the morning you should be able to push the brake pedal before you start the engine and have power brakes 3 to 5 times. If not you have a leak. if they are ok I would just put a storage tank on the system. ROY
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Old 02-06-2002, 10:54 AM
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Cool

You can find the electric vacuum pump your looking for @ www.mpbrakes.com....They have it advertised in the April 2002 of Super Chevy mag..
May be other venders. Good luck with your Rod!
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