Need Vacuum Pump Advice

gene

New member
Sep 29, 1999
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The filter is not open. It does not connect to air. It is a carbon pile
filter to make sure nothing gets into the engine or the vac pump. This is
what was use by the original auto manufactures when this pump was used in
this configuration.

gene

>I am looking at the "addendum" of the vacuum pump installation on Gene's
>site. It and the plumbing diagram on the site shows a filter between the
>manifold fitting and the pump, how does this not "open" the manifold line to
>atmosphere, thru the filter. Makes NO sense to me. I understand the need for
>a filter in the aux. pump line, but, prior to "interupting the original
>routing of the vac line from the manifold to the booster......it was a
>"closed" system. How in the world does installing a filter not "open" the
>vacuum line to atmosphere? Help out a dumb guy, someone, please.
>
>Larry Nelson
>Springfield, MO
>GMC 1975 Palm Beach
>WB0JOT
>
Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/
 
forgot to say, there is a picture here that shows the location of the filter.

http://www.california.com/~eagle/figs/vacpump/vac.html

gene

>
>
>The filter is not open. It does not connect to air. It is a carbon pile
>filter to make sure nothing gets into the engine or the vac pump. This is
>what was use by the original auto manufactures when this pump was used in
>this configuration.
>
>gene
>
>

>>I am looking at the "addendum" of the vacuum pump installation on Gene's
>>site. It and the plumbing diagram on the site shows a filter between the
>>manifold fitting and the pump, how does this not "open" the manifold line
to
>>atmosphere, thru the filter. Makes NO sense to me. I understand the need
for
>>a filter in the aux. pump line, but, prior to "interupting the original
>>routing of the vac line from the manifold to the booster......it was a
>>"closed" system. How in the world does installing a filter not "open" the
>>vacuum line to atmosphere? Help out a dumb guy, someone, please.
>>
>>Larry Nelson
>>Springfield, MO
>>GMC 1975 Palm Beach
>>WB0JOT
>>
>Genef -- 77PB/ore/ca
>GMC MOTORHOME INFORMATION
>mr.erf
>http://www.california.com/~eagle/
>
Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/