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| Re: [GMCnet] Vacuum Pump for Brakes [message #175425 is a reply to message #175315] |
Tue, 03 July 2012 12:44   |
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mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
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| ljdavick wrote on Mon, 02 July 2012 12:07 |
I see Jim K has two different vacuum pumps available and the bracket crafted by Bill Brown. Any preferences? ...
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I think the solution the that would work "best" for most GMC'ers is the JC4. (The one you called "small" from Applied GMC: <http://appliedgmc.com/prod.itml/icOid/769> )
It is NEW and was designed for this exact propose. It also has an built in vacuum sensor/switch. The only thing better would be to mount it exactly like it was designed... vacuum line plugged DIRECTLY into the booster. (Replacing the check valve.) But due to space considerations, that would be problem on our GMC's.
I have one. To mount mine: I "rotated" the head 120 degrees and mounted it to the underside of the floor under the driver's seat. It works fine and I can tell when it is running. The electrical is easy, power, ground and accessory power.
I am not sure if pump comes with it, but be sure and get the connector. (It didn't when I got mine from JimK a few years ago... ask when ordering.) <http://appliedgmc.com/prod.itml/icOid/987>
As for the other options: it is getting very hard to find "good" junkyard pumps... the diaphram is normally bad. The "big" pump you linked to seems to be overkill.
Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo'
http://m000035.blogspot.com
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| Re: [GMCnet] Vacuum Pump for Brakes [message #175436 is a reply to message #175425] |
Tue, 03 July 2012 15:17 |
mickeysss
Messages: 1476
Registered: January 2012
Karma: 0
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Senior Member |
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i just ordered the connector for i did not the first time when i ordered the pump thank you.
the steering column wire for the shifter is best to be pre-wired around the shifter to allow starting while rolling.
http://gmcws.org/Tech/Neutral_Start_Saftey_Switch_Issues.pdf
a rolling start is your only other chance to not join the bald eagles where i have to go in the avatar hills here in santa clarita.
On Jul 3, 2012, at 10:44 AM, Mike Miller wrote:
>
>
> ljdavick wrote on Mon, 02 July 2012 12:07
>> I see Jim K has two different vacuum pumps available and the bracket crafted by Bill Brown. Any preferences? ...
>
>
> I think the solution the that would work "best" for most GMC'ers is the JC4. (The one you called "small" from Applied GMC: <http://appliedgmc.com/prod.itml/icOid/769> )
>
> It is NEW and was designed for this exact propose. It also has an built in vacuum sensor/switch. The only thing better would be to mount it exactly like it was designed... vacuum line plugged DIRECTLY into the booster. (Replacing the check valve.) But due to space considerations, that would be problem on our GMC's.
>
> I have one. To mount mine: I "rotated" the head 120 degrees and mounted it to the underside of the floor under the driver's seat. It works fine and I can tell when it is running. The electrical is easy, power, ground and accessory power.
>
> I am not sure if pump comes with it, but be sure and get the connector. (It didn't when I got mine from JimK a few years ago... ask when ordering.) <http://appliedgmc.com/prod.itml/icOid/987>
>
> As for the other options: it is getting very hard to find "good" junkyard pumps... the diaphram is normally bad. The "big" pump you linked to seems to be overkill.
> --
> Mike Miller -- Hillsboro, OR -- on the Black list
> (#1)'73 26' exPainted D. -- (#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
> http://m000035.blogspot.com
> _______________________________________________
> GMCnet mailing list
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| Re: [GMCnet] Vacuum Pump for Brakes [message #175450 is a reply to message #175425] |
Tue, 03 July 2012 19:21 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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I figure if it's good enough for Buick, it's good enough for me, so I hiit the men's mall and liberated one from an early 90-s Buick TheSword. It's located under the fender liner in front of the driver's side front wheel. JimK doesn't have a mount for it so I'm fabricatiing one from aluminum plate, gonna hang it off the air reservoir. Switch and check valve are built in. Gonna feed a reservoir through a check valve from the manifold and ferom the pump, plumb the booster off the reservoir as well as the heater controls. My brakes work as well as can be expected, and I can (tried it) lock em up with no boost - by using both feet and planting my butt in the seat. However, I hate when the A/C fades any time I get into the throttle for more than ten seconds or so.
--johnny
'76 23' transmode norris
'76 palm beach
From: Mike Miller <m000035@gmail.com>
To: gmclist@temp.gmcnet.org
Sent: Tuesday, July 3, 2012 1:44 PM
Subject: Re: [GMCnet] Vacuum Pump for Brakes
ljdavick wrote on Mon, 02 July 2012 12:07
> I see Jim K has two different vacuum pumps available and the bracket crafted by Bill Brown. Any preferences? ...
I think the solution the that would work "best" for most GMC'ers is the JC4. (The one you called "small" from Applied GMC: <http://appliedgmc.com/prod.itml/icOid/769> )
It is NEW and was designed for this exact propose. It also has an built in vacuum sensor/switch. The only thing better would be to mount it exactly like it was designed... vacuum line plugged DIRECTLY into the booster. (Replacing the check valve.) But due to space considerations, that would be problem on our GMC's.
I have one. To mount mine: I "rotated" the head 120 degrees and mounted it to the underside of the floor under the driver's seat. It works fine and I can tell when it is running. The electrical is easy, power, ground and accessory power.
I am not sure if pump comes with it, but be sure and get the connector. (It didn't when I got mine from JimK a few years ago... ask when ordering.) <http://appliedgmc.com/prod.itml/icOid/987>
As for the other options: it is getting very hard to find "good" junkyard pumps... the diaphram is normally bad. The "big" pump you linked to seems to be overkill.
--
Mike Miller -- Hillsboro, OR -- on the Black list
(#1)'73 26' exPainted D. -- (#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
http://m000035.blogspot.com
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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