[GMCnet] need air Steve??

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Terry Skinner

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Nov 27, 2009, 11:15:46 AM11/27/09
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I have been looking at this type aircompressor.

http://www.onboardair.com/web-instructions/oba_manual.pdf

The stock compressor supplies enough to work the stock system, IF you
are not in a hurry. But not enough to run three train horns.<G> Or
help out someone else. Or air up the tires on my dune buggy. I can
come up with a dozen reasons to have a engine powered compressor that
can be engaged/disengaged with a switch on the dash and an electric
clutch. I have seen this style at the local Jeep run and it works
great. My thought is to leave the stock compressor in place (back in
the closet) to do normal maintenance of the system and this type for
the big boost.............Terry

Steve said:
> My 12vdc compressor that sustains air pressure underway is really
> flagging after just a few years. That extra 30 psi requirement just
> slaves that thing (Thomas 317) and it now will only get up to 90 psi.
> I am currently looking for another 12vdc compressor and am looking
> hard at the ZenithAir units. Gonna have to save up for that though
> as they are expensive.

--
Terry Skinner
253-686-2624
Roy. Washington
'76 GMC
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Gary Berry

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Nov 27, 2009, 1:30:55 PM11/27/09
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Hey Terry;

Where can you get this kit, and what's the price?

--
Gary and Diana Berry
73 CL Stretch in Wa.

Shan Rose

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Nov 27, 2009, 1:40:45 PM11/27/09
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oasis makes a 12v compressor that will flow 13-14 CFM! they arent cheap, at around a grand.. though an engine driven compressor is an interesting idea...

Steven Ferguson

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Nov 27, 2009, 3:40:46 PM11/27/09
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Terry,
I already have a 120vac version of that under the couch. I only use
it for leveling once I get there, and for charging the system and
bringing it up to max psi before I leave. Those things are FAST and
move a lot of air in a little time. So much, in fact, that I went
with a smaller drive pulley on the motor because I wasn't sure the
airlines could handle the heat in the air. Once I'm off shore power,
I use the Thomas 317 and it is hurting. Runs forever once you get past
80-90 psi. The Yorks are cheap in men's malls and not to difficult to
find at swap meets. I lugged around about 10 of them for a couple of
years to sell at GMC flea markets for $15 each. I ended up giving
away the last two (have you used it yet Gary?). They require almost
no mods to pump air vice refridgerant, Just a fitting and a K&N
breather type filter. IMHO, the ones they sell for the Jeep crowd are
waaaay overpriced.
I'm still looking hard at Zenithaire.

On Fri, Nov 27, 2009 at 8:15 AM, Terry Skinner <gmc...@gmail.com> wrote:
> IR have been looking at this type aircompressor.

--
Steve Ferguson
'76 EII
Sierra Vista, AZ
Urethane bushing source
www.bdub.net/ferguson/

Gary Berry

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Nov 27, 2009, 3:55:36 PM11/27/09
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Hey Steve;

I still have it, and am still planning on installing it. I liked
how the pump was engine driven in this instance, and was trying to see
if I could use the pump I got from you in this way. BTW, you going to
be home in a couple of weeks? I'm heading back to MS and FL (might
have JimB do some work on the GMC) and there is a fellow in Tucson
that has a buggy and wants to do some buggying in that area and since
you're not far away I was thinking about stopping by and seeing you.
Don't have an exact date, but will let you know as I get closer. I'm
leaving CA in about 10 days and plan to start meandering back east..

On Fri, Nov 27, 2009 at 12:40 PM, Steven Ferguson <botie...@gmail.com> wrote:
I lugged around about 10 of them for a couple of
> years to sell at GMC flea markets for $15 each.  I ended up giving
> away the last two (have you used it yet Gary?).

--
Gary and Diana Berry
73 CL Stretch in Wa.

Terry Skinner

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Nov 27, 2009, 5:34:17 PM11/27/09
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You can try these guys............

http://www.onboardair.com/

--

Terry Skinner
253-686-2624
Roy. Washington
'76 GMC

Matt Colie

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Nov 27, 2009, 6:05:07 PM11/27/09
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An issue to be aware of: this is an refrigeration compressor.
Why does that matter?
Because refrigeration compressors make little to no attempt to control oil because:
- They are used for a closed system - if oil goes out, it will come back.
- The compressor parts last longer this way - rings are lubricated.
- There should be no air to allow oil to carbonize.

If you go with this idea, be conscious of the fact that there will be much more oil in the compressed air than with a typical oil lubricated air compressor (most of ours are non-oil and are not even close).

If you are going the men's mall route, get two compressors out and be ready to change it out.

Some of the really old Yorks had a crankcase level check capability, but most do not. No other compressor (and surely not an R-6) can even start to do this trick.
--
Matt & Mary Colie
'73 Glacier 23 Chaumiere (say show-me-air)
SE Michigan

Ken Henderson

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Nov 27, 2009, 7:31:29 PM11/27/09
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Matt,

You might want to Google "on board air sanden".

Ken H.

On Fri, Nov 27, 2009 at 6:05 PM, Matt Colie <mco...@chartermi.net> wrote:

> ... No other compressor (and surely not an R-6) can even start to do this
> trick.
> --
>

Keith V

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Nov 27, 2009, 7:33:42 PM11/27/09
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Matt is correct, you usually run a colesing(?) filter after the pump to pull the oil out. There is also a mod you can do the the pump so less oil comes flying out.

I have 3 of these pumps, well 1 is already in use on my streetrod, I'd like to put one on the GMC, but am working on how to do it.

Engine driven would be great as it would be cheaper since there is no expensive electric motor. But you need a pulley and bracketry to mount the thing. Also then you'd have to start the engine to pump up the system... The bracketry I can handle, the pulley I'm still looking for, unless you use the AC pulley, but it's already pretty dang long!

Electric would be nice as you wouldn't have to figure out how to mount it to the engine, but then you have to buy a motor and they are $$$
--
Keith
69 Vette
29 Dodge
75 Royale GMC

Steven Ferguson

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Nov 28, 2009, 8:33:02 AM11/28/09
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Yes, we should be home and you're more than welcome to use the spot,
tools or anything else you need. The little apartment alongside the
house is now used as a guest shower, restroom etc. I'll see if I have
anything heavy that needs lifting while you're visiting:>)

--

Steve Ferguson
'76 EII
Sierra Vista, AZ
Urethane bushing source
www.bdub.net/ferguson/

Mr.erf ERFisher

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Nov 29, 2009, 8:36:18 AM11/29/09
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Gary, be sure to tell Steve about your bad neck ;>)

Steve, I see I did not respond about my 23 front end rebuild--- no news is
not good news
I have done nothing yet ;>(

Sorry to hear you caught a bug, hope all gets better.

gene


On Sat, Nov 28, 2009 at 5:33 AM, Steven Ferguson <botie...@gmail.com>wrote:

> Yes, we should be home and you're more than welcome to use the spot,
> tools or anything else you need. The little apartment alongside the
> house is now used as a guest shower, restroom etc. I'll see if I have
> anything heavy that needs lifting while you're visiting:>)
>

> --
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

Steven Ferguson

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Nov 29, 2009, 5:05:49 PM11/29/09
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Bad, bad bug. I ended up with permanent damage to my vocal box.
That'll teach me to ignore a sore throat. If it hadn't been for Larry
Weidner, I'dve never made it through my presentation at Pueblo. I
went out and bought 5 lbs of cough drops after that. That infection
lasted 6 weeks! Good to know that it was non-contagious though.
As Dan would say, "Git a goin" on that '23!

--

Steve Ferguson
'76 EII
Sierra Vista, AZ
Urethane bushing source
www.bdub.net/ferguson/

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