Home » Public Forums » GMCnet » [GMCnet] Restoration. Air suspension fittings.
| [GMCnet] Restoration. Air suspension fittings. [message #294546] |
Wed, 27 January 2016 10:25  |
BobDunahugh
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
Karma: 11
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Senior Member |
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I've seen the brass compression fittings used on our plastic air lines. Are they about the best? Or is there something nicer that I don't know about. This 78 Royale has the 2 compressor system. Each compressor appears much more robust than the earlier ones. Thus each side has it's own compressor. Much simpler system with no air tank. Seems much faster to pump up.Bob Dunahugh78 Royale
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| Re: [GMCnet] Restoration. Air suspension fittings. [message #294551 is a reply to message #294546] |
Wed, 27 January 2016 11:40  |
lqqkatjon
Messages: 2324
Registered: October 2010
Location: St. Cloud, MN
Karma: 5
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Brass are best. there are a few different types of brass fittings, all do the same thing, just ease of use and construction.
from what I know, there are 4 parts.
1.The fitting itself (T, coupler, ect..)
2. a piece that goes inside the tube.
3. compression piece
4. nut
we have fittings that incorporate the little piece that goes inside the tube as part of the fitting. Those in my opinion are the best.
We purchase them from a truck/trailer parts wholesaler.
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
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| Re: [GMCnet] Restoration. Air suspension fittings. [message #294560 is a reply to message #294559] |
Wed, 27 January 2016 13:01 |
Emery Stora
Messages: 959
Registered: January 2011
Karma: 4
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It is pretty much agreed that one should use Parker fittings such as those used for trucks/trailers.
However, years before the GMCnet back about 1982, I decided to replace my leaky plastic fittings with fittings I bought at the local hardware store.
They were ordinary 1/4” brass compression fittings using the brass inserts and the nylon glands commonly used for refrigerator ice maker 1/4” tubing.
They have been in place now for about 33 years and they are still leak free.
At that time I didn’t have the knowledge or experience of the GMCnetters to assist me.
Emery Stora
77 Kingsley
Frederick, CO
> On Jan 27, 2016, at 11:49 AM, James Hupy wrote:
>
> What Jon said. Get d.o.t. certified stuff.
> Jim Hupy
> On Jan 27, 2016 10:01 AM, "Jon Roche" wrote:
>
>> Brass are best. there are a few different types of brass fittings, all
>> do the same thing, just ease of use and construction.
>>
>> from what I know, there are 4 parts.
>> 1.The fitting itself (T, coupler, ect..)
>> 2. a piece that goes inside the tube.
>> 3. compression piece
>> 4. nut
>>
>> we have fittings that incorporate the little piece that goes inside the
>> tube as part of the fitting. Those in my opinion are the best.
>>
>> We purchase them from a truck/trailer parts wholesaler.
>>
>>
>>
>>
>>
>> --
>> Jon Roche
>> 75 palm beach
>> St. Cloud, MN
>> http://lqqkatjon.blogspot.com/
>>
>> _______________________________________________
>> GMCnet mailing list
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| Re: [GMCnet] Restoration. Air suspension fittings. [message #294561 is a reply to message #294560] |
Wed, 27 January 2016 14:04 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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We stock and supply the DOT rated ones as they work well should you need to
disconnected
On Wed, Jan 27, 2016 at 11:01 AM, Emery Stora wrote:
> It is pretty much agreed that one should use Parker fittings such as those
> used for trucks/trailers.
> However, years before the GMCnet back about 1982, I decided to replace my
> leaky plastic fittings with fittings I bought at the local hardware store.
> They were ordinary 1/4” brass compression fittings using the brass inserts
> and the nylon glands commonly used for refrigerator ice maker 1/4” tubing.
> They have been in place now for about 33 years and they are still leak
> free.
>
> At that time I didn’t have the knowledge or experience of the GMCnetters
> to assist me.
>
> Emery Stora
> 77 Kingsley
> Frederick, CO
>
>> On Jan 27, 2016, at 11:49 AM, James Hupy wrote:
>>
>> What Jon said. Get d.o.t. certified stuff.
>> Jim Hupy
>> On Jan 27, 2016 10:01 AM, "Jon Roche" wrote:
>>
>>> Brass are best. there are a few different types of brass fittings, all
>>> do the same thing, just ease of use and construction.
>>>
>>> from what I know, there are 4 parts.
>>> 1.The fitting itself (T, coupler, ect..)
>>> 2. a piece that goes inside the tube.
>>> 3. compression piece
>>> 4. nut
>>>
>>> we have fittings that incorporate the little piece that goes inside the
>>> tube as part of the fitting. Those in my opinion are the best.
>>>
>>> We purchase them from a truck/trailer parts wholesaler.
>>>
>>>
>>>
>>>
>>>
>>> --
>>> Jon Roche
>>> 75 palm beach
>>> St. Cloud, MN
>>> http://lqqkatjon.blogspot.com/
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>
>> _______________________________________________
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>
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--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Restoration. Air suspension fittings. [message #294565 is a reply to message #294560] |
Wed, 27 January 2016 17:38 |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Emery Stora wrote on Wed, 27 January 2016 14:01It is pretty much agreed that one should use Parker fittings such as those used for trucks/trailers.
However, years before the GMCnet back about 1982, I decided to replace my leaky plastic fittings with fittings I bought at the local hardware store.
They were ordinary 1/4" brass compression fittings using the brass inserts and the nylon glands commonly used for refrigerator ice maker 1/4" tubing.
They have been in place now for about 33 years and they are still leak free.
At that time I didn't have the knowledge or experience of the GMCnetters to assist me.
Emery Stora
Emery,
I had those fitting on an air horn and suspension system I put in one of our cars. They are adequate for the most part, and I would use them to get by.
The tube that goes inside is really important. I proved that.
Did you know that it will disappear if you disconnect a line with pressure on it?
Then, at some later date, the nylon line can slip out of the compression ferrule.
But, if you find any of the OE plastic fittings, replace them as soon as you find them or may have to do it on the road.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: [GMCnet] Restoration. Air suspension fittings. [message #294583 is a reply to message #294567] |
Wed, 27 January 2016 23:15 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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The push fit ones are very good in clean environments, but they do not work
too well when one need to disconnect and reuse on the outside.
Just my and our shop experiance.
On Wed, Jan 27, 2016 at 4:56 PM, Guy Lopes wrote:
> What a great resource! Thanks Rob.
>
> Guy Lopes
> 76 Birchaven "Orion"
> Sacramento, CA
> W6TOL
>
> www.GMC-Guy.com
>
>
>
> -----Original Message-----
> From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Robert
> Mueller
> Sent: Wednesday, January 27, 2016 4:42 PM
> To: gmclist@list.gmcnet.org
> Subject: Re: [GMCnet] Restoration. Air suspension fittings.
>
>
>
> Here's a link to the Parker website where you can configure and buy what
> you
> need:
>
>
> http://ph.parker.com/us/en/air-brake-d-o-t-compression-style-fittings-for-j8
> 44-tubing-nta
>
>
>
> Regards,
> Rob M.
> The Pedantic Mechanic
>
>
>
>
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--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Restoration. Air suspension fittings. [message #294615 is a reply to message #294589] |
Thu, 28 January 2016 10:39 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Bob,
To each his own, but I'm not a fan of rear sway bars, especially TWO of
them. The Palm Beach which my son now has came with them -- it was
literally impossible to level the coach with the air bags because of the
lateral stability -- both sides went up & down together. After he got it,
he removed one of the bars, which was an improvement. When we installed
the Quad Bag, he removed the other -- and hasn't regretted it.
I expect to take both of his to GMCMI Dothan for the Flea Market.
Ken H.
On Thu, Jan 28, 2016 at 3:23 AM, Bob Dunahugh wrote:
>
>
>
> DUMB, DUMB me. I got the Quad bag system out tonight that I bought from
> Jim K at Applied. I forgot that he has all the correct fittings in there.
> So tomorrow. The new Q bags, ride hight links, the 2 rear sway bars, KYB
> shocks, rear wheel bearings with seal go in. Then to Sam's for 7 new
> Goodyear tires that go on the new Eagle rims from Applied GMC that just
> arrived. Next have Linda look at samples of Corian for the drive in shower,
> and kitchen counter top. Did I mention that this is starting to get very
> PRICY? MAYBE.Bob Dunahugh78 Royale. A true Restoration
>
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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