| Re: [GMCnet] Fwd: What did this GM vacuum pump originally come on? [message #313751] |
Fri, 24 February 2017 20:15  |
Bruce Hart
Messages: 1501
Registered: October 2011
Location: La Grange, Wyoming
Karma: 5
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Senior Member |
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Forgot to include this note:
Try to use multi stranded wire as a single wire is very stiff.
On Fri, Feb 24, 2017 at 7:14 PM, Bruce Hart wrote:
> Bob,
> As luck would have it you can build your own connector;-)
>
> Napa #s
> 725267
> https://www.napaonline.com/napa/en/p/NW_725267/NW_725267
> 725170
> https://www.napaonline.com/napa/en/p/NW_725170/NW_725170
> 725152
> https://www.napaonline.com/napa/en/p/NW_725152/NW_725152
>
> http://gmcmotorhome.info/figs/vacpump/vac.html
>
> This is what you were looking for:
>
> Connection A (Red wire) battery positive, 12 volts+ through a fuse.
> Connection B (Black with white stripe) ignition positive, 12 volts+
> Connection C (plugged) not used (not used in factory system either)
> Connection D (Black wire) ground, 12 volts-
>
--
Bruce Hart
1976 Palm Beach
Milliken, Co
GMC=Got More Class
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Bruce Hart
1976 Palm Beach
1977 28' Kingsley
La Grange, Wyoming
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| Re: [GMCnet] Fwd: What did this GM vacuum pump originally come on? [message #313754 is a reply to message #313751] |
Fri, 24 February 2017 21:31  |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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Read here
http://gmcmotorhome.info/addens.html#jc4
Read the whole story
On Fri, Feb 24, 2017 at 6:16 PM Bruce Hart wrote:
> Forgot to include this note:
>
> Try to use multi stranded wire as a single wire is very stiff.
>
> On Fri, Feb 24, 2017 at 7:14 PM, Bruce Hart wrote:
>
>> Bob,
>> As luck would have it you can build your own connector;-)
>>
>> Napa #s
>> 725267
>> https://www.napaonline.com/napa/en/p/NW_725267/NW_725267
>> 725170
>> https://www.napaonline.com/napa/en/p/NW_725170/NW_725170
>> 725152
>> https://www.napaonline.com/napa/en/p/NW_725152/NW_725152
>>
>> http://gmcmotorhome.info/figs/vacpump/vac.html
>>
>> This is what you were looking for:
>>
>> Connection A (Red wire) battery positive, 12 volts+ through a fuse.
>> Connection B (Black with white stripe) ignition positive, 12 volts+
>> Connection C (plugged) not used (not used in factory system either)
>> Connection D (Black wire) ground, 12 volts-
>>
>
>
>
> --
> Bruce Hart
> 1976 Palm Beach
> Milliken, Co
> GMC=Got More Class
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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| Re: [GMCnet] What did this GM vacuum pump originally come on? [message #313759 is a reply to message #313754] |
Fri, 24 February 2017 23:04 |
powwerjon
Messages: 849
Registered: March 2013
Karma: -2
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Senior Member |
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These Vacuum were lasted used in the Mid 1980’s. They are still available on the models listed in the Supplemental vacuum pump list. Having search the men’s malls you have to be careful. I have found that you will have a 50/50 chance to find a working pump. The diaphragms have had a high failure rate. Remember that most are more than 30 years old.
J.R. Wright
GMC GreatLaker
Newsletter Editor/Publisher
Tech Editor
78 Buskirk 30' Stretch
75 Avion Under Reconstruction
Michigan
> On Feb 24, 2017, at 8:31 PM, gene Fisher wrote:
>
> Read here
> http://gmcmotorhome.info/addens.html#jc4
>
> Read the whole story
>
>
> On Fri, Feb 24, 2017 at 6:16 PM Bruce Hart wrote:
>
>> Forgot to include this note:
>>
>> Try to use multi stranded wire as a single wire is very stiff.
>>
>> On Fri, Feb 24, 2017 at 7:14 PM, Bruce Hart wrote:
>>
>>> Bob,
>>> As luck would have it you can build your own connector;-)
>>>
>>> Napa #s
>>> 725267
>>> https://www.napaonline.com/napa/en/p/NW_725267/NW_725267
>>> 725170
>>> https://www.napaonline.com/napa/en/p/NW_725170/NW_725170
>>> 725152
>>> https://www.napaonline.com/napa/en/p/NW_725152/NW_725152
>>>
>>> http://gmcmotorhome.info/figs/vacpump/vac.html
>>>
>>> This is what you were looking for:
>>>
>>> Connection A (Red wire) battery positive, 12 volts+ through a fuse.
>>> Connection B (Black with white stripe) ignition positive, 12 volts+
>>> Connection C (plugged) not used (not used in factory system either)
>>> Connection D (Black wire) ground, 12 volts-
>>>
>>
>>
>>
>> --
>> Bruce Hart
>> 1976 Palm Beach
>> Milliken, Co
>> GMC=Got More Class
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> --
> Gene Fisher -- 74-23,77PB/ore/ca
> “Give a man a fish; you have fed him for today --- give him a URL and
> -------
> http://gmcmotorhome.info/
> Alternator Protection Cable
> http://gmcmotorhome.info/APC.html
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
_______________________________________________
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