Home » Public Forums » GMCnet » [GMCnet] Brake booster vacuum pump
[GMCnet] Brake booster vacuum pump [message #364842] |
Sat, 19 June 2021 15:41 |
Ray Erspamer
Messages: 1707 Registered: May 2007 Location: Milwaukee Wisconsin
Karma: -3
|
Senior Member |
|
|
I need to replace my brake booster vacuum pump, what's everyone using these days?ThanksRay ErspamerSent from my U.S.Cellular© Smartphone
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
|
|
|
[GMCnet] Re: Brake booster vacuum pump [message #364843 is a reply to message #364842] |
Sat, 19 June 2021 16:09 |
James Hupy
Messages: 6806 Registered: May 2010
Karma: -62
|
Senior Member |
|
|
At least 2 ways to go.
One is to just make a vacuum canister out of PVC pipe, and run a large
vacuum hose to the booster. Engine vacuum suffices to charge the canister.
No pump required. Or, a smaller pump will suffice to replenish the vacuum
needed when the engine is off.
The second, is to use an electric driven larger vacuum pump, with no
canister. But it needs to be big enough to perform the brake booster task
all by itself. Those pumps are more $$$, and are usually turned on and off
via a vacuum sensing switch and relay setup. Again, a more complex
system, not exactly trouble free.
Pretty hard to find something that pumps as much vacuum as your engine.
Jim Hupy
Salem, Oregon
On Sat, Jun 19, 2021, 1:41 PM 78gmcroyale wrote:
> I need to replace my brake booster vacuum pump, what's everyone using
> these days?ThanksRay ErspamerSent from my U.S.Cellular© Smartphone
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
|
|
|
[GMCnet] Re: Brake booster vacuum pump [message #364845 is a reply to message #364843] |
Sat, 19 June 2021 20:24 |
Ray Erspamer
Messages: 1707 Registered: May 2007 Location: Milwaukee Wisconsin
Karma: -3
|
Senior Member |
|
|
That's what I want to replace, the pump that shuts on and off. Mine won't shut off anymore and runs continuously. Sent from my U.S.Cellular© Smartphone
-------- Original message --------From: James Hupy Date: 6/19/21 4:10 PM (GMT-06:00) To: gmclist@list.gmcnet.org Subject: [GMCnet] Re: Brake booster vacuum pump At least 2 ways to go. One is to just make a vacuum canister out of PVC pipe, and run a largevacuum hose to the booster. Engine vacuum suffices to charge the canister.No pump required. Or, a smaller pump will suffice to replenish the vacuumneeded when the engine is off. The second, is to use an electric driven larger vacuum pump, with nocanister. But it needs to be big enough to perform the brake booster taskall by itself. Those pumps are more $$$, and are usually turned on and offvia a vacuum sensing switch and relay setup. Again, a more complexsystem, not exactly trouble free. Pretty hard to find something that pumps as much vacuum as your engine.Jim HupySalem, OregonOn Sat, Jun 19, 2021, 1:41 PM 78gmcroyale wrote:> I need to replace my brake booster vacuum pump, what's everyone using> these days?ThanksRay ErspamerSent from my U.S.Cellular© Smartphone> _______________________________________________> GMCnet mailing list> Unsubscribe or Change List Options:>_______________________________________________GMCnet mailing listUnsubscribe or Change List Options:
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
|
|
|
|
Re: [GMCnet] Brake booster vacuum pump [message #364857 is a reply to message #364842] |
Sun, 20 June 2021 16:01 |
Carl S.
Messages: 4186 Registered: January 2009 Location: Tucson, AZ.
Karma: 13
|
Senior Member |
|
|
Ray,
If your vacuum pump runs constantly, you might have a leak in your brake booster that doesn't allow the vacuum to build up to the point where the pump shuts off.
Just a thought. It might be a good idea to check that out.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
|
|
|
[GMCnet] Re: Brake booster vacuum pump [message #364858 is a reply to message #364857] |
Sun, 20 June 2021 17:14 |
Ray Erspamer
Messages: 1707 Registered: May 2007 Location: Milwaukee Wisconsin
Karma: -3
|
Senior Member |
|
|
I had thought of that, so I Disconnected the hose from the power brake booster and plugged it, pump kept running. I need to remove the pump and do more analysis on it.Sent from my U.S.Cellular© Smartphone
-------- Original message --------From: Carl Stouffer Date: 6/20/21 4:02 PM (GMT-06:00) To: gmclist@list.gmcnet.org Subject: [GMCnet] Re: Brake booster vacuum pump Ray, If your vacuum pump runs constantly, you might have a leak in your brake booster that doesn't allow the vacuum to build up to the point where the pumpshuts off.Just a thought. It might be a good idea to check that out.-- Carl Stouffer'75 ex Palm BeachTucson, AZ.Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles,Solar battery charging. GMCSJ and GMCMI member_______________________________________________GMCnet mailing listUnsubscribe or Change List Options:
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
|
|
|
|
[GMCnet] Re: Brake booster vacuum pump [message #364860 is a reply to message #364859] |
Sun, 20 June 2021 18:13 |
Ray Erspamer
Messages: 1707 Registered: May 2007 Location: Milwaukee Wisconsin
Karma: -3
|
Senior Member |
|
|
I plan to remove it tomorrow and try to figure out if it can be fixed.Sent from my U.S.Cellular© Smartphone
-------- Original message --------From: "John R. Lebetski" Date: 6/20/21 5:59 PM (GMT-06:00) To: gmclist@list.gmcnet.org Subject: [GMCnet] Re: Brake booster vacuum pump Sounds like pump working “too good”. Can you just unstick or replace switch? Maybe McMaster, Granger or such? -- John LebetskiWoodstock, IL77 Eleganza II_______________________________________________GMCnet mailing listUnsubscribe or Change List Options:
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
|
|
|
|
|
[GMCnet] Re: Brake booster vacuum pump [message #364875 is a reply to message #364874] |
Mon, 21 June 2021 12:33 |
Ken Henderson
Messages: 8726 Registered: March 2004 Location: Americus, GA
Karma: 9
|
Senior Member |
|
|
#K-085 or #K-058?
Ken H.
On Mon, Jun 21, 2021 at 1:20 PM Lawrence Coldren wrote:
> The vacuum switch used by Dave Lenzi on his brake booster is made by Shift
> Technology Products called Adjustable Vacuum Switch part # K085.
>
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
|
|
|
|
[GMCnet] Re: Brake booster vacuum pump [message #364878 is a reply to message #364877] |
Mon, 21 June 2021 15:06 |
Ray Erspamer
Messages: 1707 Registered: May 2007 Location: Milwaukee Wisconsin
Karma: -3
|
Senior Member |
|
|
I removed the pump today and looked at it. It's a completely sealed unit...it's TOAST. So I ordered a new unit....https://swperformanceparts.com/product/1420/gclid=CjwKCAjw8cCGBhB6EiwAgOReyzo9LnJpgqsioCUq_CJJh3FZzHAwB9Q9eulLT5Ihvpg22Lg71Nz3ihoCNBQQAvD_BwES ent from my U.S.Cellular© Smartphone
-------- Original message --------From: Lawrence Coldren Date: 6/21/21 2:50 PM (GMT-06:00) To: gmclist@list.gmcnet.org Subject: [GMCnet] Re: Brake booster vacuum pump Kin thanks for catching my error. the switch part 3 is K 058.Larry C________________________________From: Lawrence Coldren Sent: Monday, June 21, 2021 11:20 AMTo: gmclist@list.gmcnet.org Subject: [GMCnet] Re: Brake booster vacuum pumpThe vacuum switch used by Dave Lenzi on his brake booster is made by Shift Technology Products called Adjustable Vacuum Switch part # K085.Good LuckLarry ColdrenFt. Collins CO1974 Canyonlands________________________________From: John R.Lebetski Sent: Sunday, June 20, 2021 04:59 PMTo: gmclist@list.gmcnet.org Subject: [GMCnet] Re: Brake booster vacuum pumpSounds like pump working “too good”. Can you just unstick or replace switch? Maybe McMaster, Granger or such?--John LebetskiWoodstock, IL77 Eleganza II_______________________________________________GMCnet mailing listUnsubscribe or Change List Options:_______________________________________________GMCnet mailing listUnsubscribe or Change List Options:_______________________________________________GMCnet mailing listUnsubscribe or Change List Options:
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
|
|
|
|
[GMCnet] Re: Brake booster vacuum pump [message #364889 is a reply to message #364887] |
Tue, 22 June 2021 08:54 |
Ray Erspamer
Messages: 1707 Registered: May 2007 Location: Milwaukee Wisconsin
Karma: -3
|
Senior Member |
|
|
It comes with an Adjustable valve 18-22"Sent from my U.S.Cellular© Smartphone
-------- Original message --------From: Larry Date: 6/22/21 7:26 AM (GMT-06:00) To: gmclist@list.gmcnet.org Subject: [GMCnet] Re: Brake booster vacuum pump Ray,What kind of vacuum does this pump create? 21"...more or less?-- Larry 78 Royale w/500 CaddyMenomonie, WI._______________________________________________GMCnet mailing listUnsubscribe or Change List Options:
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
|
|
|
Goto Forum:
Current Time: Sat Sep 28 05:09:06 CDT 2024
Total time taken to generate the page: 0.01061 seconds
|