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| Re: 76 GMC Birchaven rear suspension [message #345628 is a reply to message #345624] |
Mon, 22 July 2019 20:12   |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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DuckVan wrote on Mon, 22 July 2019 18:30Hi everybody and forgive me if I am posting this in the wrong section  My wife and I bought a 1976 Birchaven over the weekend. We are already in love with it, but she still needs some work done before her first voyage.
The main issue right now is the rear suspension. both compressors engaged yesterday and she was raising up nicely. The we blew a fuse in the dash fuse box. We replaced the fuse and now the compressor engages and runs but won't lift it ant higher.
is there a auxiliary Schrader valve I can connect my external Air Compressor To? I have searched all over the Van and can not see a valve.
Any help or suggestions would be greatly appreciated!!
Thank you,
I love the site!!
Duck,
You are in the right place.
Welcome to the group, family, cult, asylum.....
We will all be at a loss. You seem to be describing a suspension that we would call Electro-Level 2. A 76 Birch should be Electro-Level (1). As OE, there is no schrader anyplace, but many do add such. At the airspring (bag) feed they add a T, a valve and a schrader. You can do this on your own or buy a kit from Applied GMC.
If it is an EL2 and you need a new airpump, hang on. Those were a Cadillac part and they are very proud of them.....
There is a world of technical stuff that can be downloaded at GMCMI.COM. If you have not looked there, start now.
You will get a lot of value out of this group, but we need your help. It looks like you are working the Forum, so go up to <Control Panel/Account Settings>. Scroll down, if you see <Preferences> but there isn't much, click on the PLUS. Now scroll down to the Signature Box.. Please fill that in with your real name (we like to know who you are when we are helping your or we meet), a short about the coach including major mods (some, like EL2, might matter a lot) and a geographic reference. By arriving here, you just collected a huge number of old friends and one might be close enough to help.
Birchhavens were TZE chassis 23' that were fitout by Coachmen. As such, the documentation is often sketchy. We have several owners here that will know much more about this than I do. One should be along any moment now. Be patient.
One more thing, your Birchaven is more than just a big new toy. Being a GMC owner connects you to a community that is just full of people that are eager to see that you get to enjoy your coach as much as we know you can. They are massively helping and supportive people. It is a truly awesome thing. I am going to refrain for stories right now, but you will get to hear some I am sure. The only other community that I know of that is this supportive is that of the watermen that are my world. For that reason, I like to welcome a new owner here much as one might be there. So,
May the Good Lord bless this coach and all those that set forth within her.
Welcome (Duck?)
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: 76 GMC Birchaven rear suspension [message #345630 is a reply to message #345628] |
Mon, 22 July 2019 22:21 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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A 76 with two compressors? This does not compute. Does is it have a small air tank (about 1 quart) mounted near the compressor(s)? To my knowledge dual compressors (one per side) with no air tank were not introduced until 1978.
If you have a tank, you could unscrew the drain valve and install a schrader there. Otherwise you could unscrew the 2 air lines at the bags and install two schraders direct into the two airbags.
I assume that your long term goal will be to restore your coach to an operational air system.
1/4" and 1/8" schraders are available from your local Ace hardware for a couple of dollars each. Look around the area of the store with brass fittings. The 3 local Ace and one True Value stores here all have them.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] 76 GMC Birchaven rear suspension [message #345632 is a reply to message #345630] |
Mon, 22 July 2019 23:08 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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There is a shredder valve on top of the head on the 78 compressors
On Mon, Jul 22, 2019 at 8:53 PM Ken Burton via Gmclist <
gmclist@list.gmcnet.org> wrote:
> A 76 with two compressors? This does not compute. Does is it have a
> small air tank (about 1 quart) mounted near the compressor(s)? To my
> knowledge
> dual compressors (one per side) with no air tank were not introduced until
> 1978.
>
> If you have a tank, you could unscrew the drain valve and install a
> schrader there. Otherwise you could unscrew the 2 air lines at the bags and
> install two schraders direct into the two airbags.
>
> I assume that your long term goal will be to restore your coach to an
> operational air system.
>
> 1/4" and 1/8" schraders are available from your local Ace hardware for a
> couple of dollars each. Look around the area of the store with brass
> fittings. The 3 local Ace and one True Value stores here all have them.
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Newark,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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