Darryl Keil Last Activity 2025-09-09 11:09 AM
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CarlMorrell

Posts: 28

Joined: 2010-01-29

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Subject : Aging compact 100 -low vacuum
Posted : 2014-11-14 9:50 AM
Post #37180
This Compact 100 has a lot of hours on it. But has been idle for a few years. I did a vacuum check last night and it was at 16". I took it apart, and found a lot of black grime, perhaps the diaphragm is falling apart. After I cleaned it and got it back together, the best it would do is 22". Also, when I turn it off, the pressure drops pretty quick.

I did pay special attention to the flat metal reed. It seems to be clean underneath and flat.

Do I need to replace the diaphragm? Add some gasket sealer to the edges? Buy a new pump? Call Darryl?

Thanks, Carl


 
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Don Stephan

Posts: 825

Joined: 2003-07-18
Location: Cincinnati, Ohio

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Subject : RE: Aging compact 100 -low vacuum
Posted : 2014-11-14 6:29 PM
Post #37181 - In reply to #37180
Yep, call customer service.


 
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Darryl Keil

Posts: 1455

Joined: 2003-05-22
Location: Maine

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Subject : RE: Aging compact 100 -low vacuum
Posted : 2014-11-16 3:49 PM
Post #37182 - In reply to #37180
We actually talked over the phone but for the sake of the readers here I will repeat what I said. 22"HG is perfectly acceptable for the C100 pump. They normally top out at about 24"HG and Carl was a little over 1,000ft in elevation which reduces what the pump can pull.

There was probably something caught in the reed valves which would reduce max vacuum level
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