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Another dumb question ...

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Old Mar 11, 2008 | 08:00 PM
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From: SW Washington coast
Another dumb question ...

I was looking under the hood of my '86 f250 6.9l and am wondering if the "doohicky" mounted under the alternator and powered by a belt from the pulley on the alternator is a type of vacuum pump and if so, what is it for ?
 
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Old Mar 11, 2008 | 08:14 PM
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It is a vacuum pump for your brake booster and your HVAC. Diesels don't intake restrict air like a gas motor does so you can't build a vacuum from the engine when it idles.
 
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Old Mar 13, 2008 | 05:59 PM
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So I guess that means I have to keep it ... I wonder if I can put an electric motor on it and move it to the side ... Is it rpm sensative? Or can it run at a constant rpm and still do its job?
 
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Old Mar 13, 2008 | 06:29 PM
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If you can find the parts........

http://www.california.com/~eagle/figs/vacpump/vac.html
 
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Old Mar 14, 2008 | 04:52 PM
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Sweet ... Tanx plc7.3 ... Looks like another trip across the state line to the wrecking yard ...
 
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