Home » Public Forums » GMCnet » Looking for this part
|
|
|
|
|
|
|
|
|
|
| Re: [GMCnet] Looking for this part [message #174410 is a reply to message #174405] |
Sat, 23 June 2012 20:48   |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
|
Senior Member |
|
|
You can get theses at the Men's Mall pretty cheap.
JR Wright
On Jun 23, 2012, at 9:24 PM, John Shotwell wrote:
>
>
> Mike,
>
> Thanks, but being the "frugal" (read cheap) guy that I am, I was
> hoping to find one that someone had laying around taking up space,
> and they wanted to help out a fellow GMCer in distress :lol:
>
> John
> --
> John Shotwell
> Ridgeville Corners, OH
> 78 Royale Center Kitchen
> Web Site: GMCmhRegistry.com /
> Email: john@gmcmhregistry.com
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
|
|
|
|
| Re: [GMCnet] Looking for this part [message #174412 is a reply to message #174408] |
Sat, 23 June 2012 21:02 |
 |
hnielsen2
Messages: 1434
Registered: February 2004
Location: Alpine CA
Karma: 0
|
Senior Member |
|
|
If its $20.00 on eBay.
A used working one could only be $5.00 at the wrecking yard and if you hit
them up on 1/2 price day who knows?
Howard
----- Original Message -----
From: "Mike" <carcruse@comcast.net>
To: <gmclist@temp.gmcnet.org>
Sent: Saturday, June 23, 2012 18:45
Subject: Re: [GMCnet] Looking for this part
>
>
> JShot wrote on Sat, 23 June 2012 21:24
>> Mike,
>>
>> Thanks, but being the "frugal" (read cheap) guy that I am, I was hoping
>> to find one that someone had laying around taking up space, and they
>> wanted to help out a fellow GMCer in distress :lol:
>>
>> John
>
>
> I hear you, especially at that price. If you can't find anybody, here is
> a cheaper one that if not the same, looks like it would work.
>
> http://www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=320918836162+&item=320918836162&vectorid=229466
> --
> Mike K.
> '75 PB
> Southeast Michigan
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
All is well with my Lord
|
|
|
|
| Re: [GMCnet] Looking for this part [message #174414 is a reply to message #174405] |
Sat, 23 June 2012 21:33 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
|
Senior Member |
|
|
Being made of ABS, it should be easy to repair its leak for the price of a
can of plumbing cement.
Ken H.
On Sat, Jun 23, 2012 at 9:24 PM, John Shotwell wrote:
>
>
> Mike,
>
> Thanks, but being the "frugal" (read cheap) guy that I am, I was hoping to
> find one that someone had laying around taking up space, and they wanted to
> help out a fellow GMCer in distress :lol:
>
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
|
|
|
|
| Re: Looking for this part [message #174425 is a reply to message #174403] |
Sun, 24 June 2012 05:17 |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
|
Senior Member |
|
|
you could always make one with some PVC pipe, end caps, ad a brass tube fitting...
-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
|
|
|
|
| Re: Looking for this part [message #174440 is a reply to message #174403] |
Sun, 24 June 2012 10:11 |
 |
John Heslinga
Messages: 632
Registered: February 2011
Location: Edmonton, Alberta, Canada
Karma: 4
|
Senior Member |
|
|
John:
That part is simply a vacuum reservoir used to supply vacuum to the HVAC controls under conditions when engine vacuum is low or non existent. During long pulls up mountains the HVAC does weird things because nothing controls the doors when vacuum runs out. You will find a similar kind on any of the 80s chevy vans. It is the big round black ball. However that ball is bigger and may need to be placed in another spot with an additional length of vacuum line. I believe that it's price at any local wrecker will be cheaper than shipping from wherever.
During the seventies and 80s. Ford used to use tin cans to do the same thing on their full sized cars. I always hated the look. My 79 merc had leak in it and when I found they wanted $45.00 I said "no way".
It looked like a Heintz tomato juice can ( later ones were a bit shorter). It turned out that the can shape, ripples and details were exact
I punched holes in such a way that I could drain, clean, and blow dry the inside. I then soldered a cover circle with fitting and painted it. Worked perfectly. I even enjoyed the Tomato juice.
The point is any container that can contain a vaccum will work. Having one larger and in an inconspicuous place will supply vacuum on those long pulls up mountains. One improvement that can be made ( I did to mine), is to place a check valve in the supply line from the engine.
Best regards
John and Cathie Heslinga
1974 Canyonlands 260
455, Manny tranny and 1 ton, 3:70 LS,
Red Seal Journeyman, DTE, BEd. MEd.
Edmonton, Alberta
|
|
|
|
|
|
| Re: Looking for this part [message #174467 is a reply to message #174403] |
Sun, 24 June 2012 18:51 |
|
John Heslinga
Messages: 632
Registered: February 2011
Location: Edmonton, Alberta, Canada
Karma: 4
|
Senior Member |
|
|
I agree that a vacuum pump is a good Change up, and in fact I have one. However: The instructions in almost all descriptions that i have seen on the web, only supplement vacuum to the brake booster directly to ensure power brakes are always present.
I have not seen one description yet that supplements vacuum to the HVAC or Cruise control. While providing auxiluary vacuum to the HVAC SYSTEM can be accomplish very easily, the real worry has been brakes and not the accessories. You and almost everyone else who have followed the instructions, are still getting HVAC and Cruise Control vacuum directly from the manifold and will still need a reservoir in the HVAC system.
In fact my opinion is that: by providing auxiliary vacuum only to the brake booster a person is decreasing the likelihood of other problems affecting the brakes. The redundancy is in the most critical spot. (good thing I think)
Best regards
John and Cathie Heslinga
1974 Canyonlands 260
455, Manny tranny and 1 ton, 3:70 LS,
Red Seal Journeyman, DTE, BEd. MEd.
Edmonton, Alberta
|
|
|
|
|
|
| Re: Looking for this part [message #174510 is a reply to message #174440] |
Mon, 25 June 2012 02:42 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
|
Senior Member |
|
|
| John Heslinga wrote on Sun, 24 June 2012 10:11 |
John:
One improvement that can be made ( I did to mine), is to place a check valve in the supply line from the engine.
Best regards
|
I always wondered if there was a check valve in one of those reservoirs.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
|
|
|
|
| Re: Looking for this part [message #174531 is a reply to message #174403] |
Mon, 25 June 2012 12:15 |
|
John Heslinga
Messages: 632
Registered: February 2011
Location: Edmonton, Alberta, Canada
Karma: 4
|
Senior Member |
|
|
Hi Ken
Yes there is a check valve in the factory reservoir. It's the larger fitting. As our units get older they may not work such as mine was not. Definitly worth checking yours.
The accessory check valve is cheap and easy to find. It comes from the "HELP" branded products in your local parts suppliers.
If anyone wants to create a non factory reservoir they will need to plumb the vacuum lines accordingly to incorporate the check valve purpose and function
John and Cathie Heslinga
1974 Canyonlands 260
455, Manny tranny and 1 ton, 3:70 LS,
Red Seal Journeyman, DTE, BEd. MEd.
Edmonton, Alberta
|
|
|
|
| Re: [GMCnet] Looking for this part [message #174540 is a reply to message #174531] |
Mon, 25 June 2012 13:18 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
|
Senior Member |
|
|
One caution on those "Help" check valves: Test them carefully. A few
years back when I was making PVC brake vacuum reservoirs, I found about 3
out of 5 of them would leak. I finally reverted to using junk yard ones.
I've found cars which had obviously been on the yard for many months often
still held vacuum.
Incidentally, when I made those reservoirs, I left the OEM valve in place
and added another at the inlet of the reservoir. Not on those I sold, but
on my own, I added a fitting for the HVAC reservoir also.
Ken H.
On Mon, Jun 25, 2012 at 1:15 PM, John Heslinga wrote:
>
>
> Hi Ken
>
> Yes there is a check valve in the factory reservoir. It's the larger
> fitting. As our units get older they may not work such as mine was not.
> Definitly worth checking yours.
>
> The accessory check valve is cheap and easy to find. It comes from the
> "HELP" branded products in your local parts suppliers.
>
> If anyone wants to create a non factory reservoir they will need to plumb
> the vacuum lines accordingly to incorporate the check valve purpose and
> function
>
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
|
|
|
|
| Re: Looking for this part [message #174564 is a reply to message #174403] |
Mon, 25 June 2012 16:25 |
|
John Heslinga
Messages: 632
Registered: February 2011
Location: Edmonton, Alberta, Canada
Karma: 4
|
Senior Member |
|
|
Ken
Are you referring to the 1/8 inch valves or the "5/8 inch brake booster valves" as being prone to leaks?
John and Cathie Heslinga
1974 Canyonlands 260
455, Manny tranny and 1 ton, 3:70 LS,
Red Seal Journeyman, DTE, BEd. MEd.
Edmonton, Alberta
|
|
|
|
|
|
|
|
| Re: Looking for this part [message #174585 is a reply to message #174403] |
Mon, 25 June 2012 19:34 |
 |
JShot
Messages: 485
Registered: October 2006
Location: NW Ohio
Karma: 0
|
Senior Member |
|
|
To end this saga of the vacuum reservoir, we have a junk yard (not a men's mall, because this one is straight out of Deliverance!) about 15 miles from here. So Pat and I took a few tools and made the trip over there today.
One of the snaggle teeth (I'm not trying to be mean here; if you were here, you'd see)showed me an aerial photo of the place, and pointed out where he thought there might be a few of the select cars where we would find the part.
We made the trek to the rear of the place (he said if you could see the next town over the fence, you went too far), found the vehicles, and after clearing the brush, I climbed into the engine compartment. The engine was long gone.
And lo and behold, there it was, just sitting there by the firewall. One bolt out, then I started on number two. The part swung and dropped, and of course, rolled to the geographical center of the wreck.
I finally fished it out with an old length of rusted exhaust pipe, and grabbed it.
We went back to the caretaker's 'house', and the guy tried to charge me $5.00 for the part. I told him a dollar would be good, and we settled on $3.
He was happy, we were happy, and that is the reason I love this old place.
Shot
John Shotwell
Ridgeville Corners, OH
78 Royale Center Kitchen
[Updated on: Mon, 25 June 2012 19:49] Report message to a moderator |
|
|
|
Goto Forum:
Current Time: Tue Sep 24 01:21:18 CDT 2024
Total time taken to generate the page: 0.03775 seconds
|
GMCforum
Search
Help
Register
Login
Home
