GMCforum
For enthusiast of the Classic GMC Motorhome built from 1973 to 1978. A web-based mirror of the GMCnet mailing list.

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1 Forum: GMCnet «» Posted on: Sun, 14 July 2019 13:58 «» By: Deb
Re: [GMCnet] a/c compressor not engaging
…GMCforum/index.php?t=msg&goto=192311&rid=0 Sounds like the connections are different configuration than what I have though. I have a single harness. Having some difficulty with the main blower relay - some re-wiring underneath is making it a …
2 Forum: GMCnet «» Posted on: Wed, 03 July 2019 16:29 «» By: RF_Burns
Re: And now for a little side ways
…time Mike S mentions a replacement engine is January 2018, here is the thread: http://gmc.mybirdfeeder.net/GMCforum/index.php?t=msg&goto=328194&rid=1480#msg_328194 Links to new Olds block becoming available, here is that link: https://…
3 Forum: GMCnet «» Posted on: Tue, 18 June 2019 07:30 «» By: Michael Leipold
Re: [GMCnet] Off Topic But Too Good To Not Forward: Your First Car?
…VW Bug with a Baja Kit bought in 1988 for $525. Dad wouldn't let me park it in the driveway because you could pour oil in it, wait 5 minutes and watch it start dripping out the bottom. Grampa offered me a 1984 K-Car if I would just get rid of the bug. …
4 Forum: GMCnet «» Posted on: Sun, 16 June 2019 17:18 «» By: jimk
Re: [GMCnet] Engine won't start or turn over
…a steel hammer on the starter. Rubber mallet does not produce the shock type impact. Check you neutral switch. On Sun, Jun 16, 2019 at 3:03 PM Russell Keith via Gmclist < gmclist@list.gmcnet.org> wrote: > Our '78 403 will not start. I …
5 Forum: GMCnet «» Posted on: Sun, 16 June 2019 17:02 «» By: Russell K.
Engine won't start or turn over - UPDATED
…'78 403 will not start. I drove it home Friday. It started normally. I stopped for gas, and it started normally after that. On Saturday, all I did was generator maintenance, no work at all on the coach engine. On Sunday we got in it to take it back to …
6 Forum: GMC Swap Meet «» Posted on: Thu, 13 June 2019 08:27 «» By: 77Royale
77 Royale For Sale
http://www.gmc.mybirdfeeder.net/GMCforum/index.php?t=msg&th=42445&start=0&rid=4532
7 Forum: GMCnet «» Posted on: Thu, 06 June 2019 09:18 «» By: tmsnyder
Re: [GMCnet] Oil filter
….php?t=msg&th=29910&prevloaded=1&rid=0&start=20 The gmc maintenance manual quoted in the thread says that the filter base bypass valve will open at 5.3-6.3 psi. That's the max pressure loss allowed across the filter media, not the max…
8 Forum: GMCnet «» Posted on: Thu, 23 May 2019 12:33 «» By: Dolph Santorine
Re: [GMCnet] Electric Conversion ?
…Dave: Have you been around a Tesla on a “Supercharger”. It’s rock concert loud. Second, go drive one. I killed half the range in a 15 minute test drive. I unleashed a lot of those ponies. Much of what we are talking about, like the wind resistance of…
9 Forum: GMCnet «» Posted on: Thu, 23 May 2019 11:15 «» By: James Hupy
Re: [GMCnet] Electric Conversion ?
…know what happens when you put a 75% load on a internal combustion engine? Heat! A whole bunch of it. Enough to completely overwhelm the cooling systems ability to process it. About 18% to 25% load continuous state is about all you can get away with…
10 Forum: GMCnet «» Posted on: Thu, 23 May 2019 10:47 «» By: Dolph Santorine
Re: [GMCnet] Electric Conversion ?
…Mike: I concur… it’s pricey. The motors used on a mobility vehicle I know of are $16,000 for a pair, sans controllers. And the Batteries. and the genset. All the engineering. So, $75k for the hard bits, and $500,000 in engineering spread over 1000 …
11 Forum: GMCnet «» Posted on: Thu, 23 May 2019 10:33 «» By: mghamms
Re: [GMCnet] Electric Conversion ?
…saw the eBay listing last year and asked that he joined this forum. I don't believe he did. Anyhow I don't think a pure electric is practical at this time, but I do think a hybrid would be a good choice to repower. Smaller gas engine hybrid in front …
12 Forum: GMCnet «» Posted on: Sun, 05 May 2019 08:19 «» By: James Hupy
Re: [GMCnet] Dometic fridge wont run on 12V
…kinda looked a bit on the internet last night about statistics on causes of fires in RV's and they broke down as electrical first, oil and fuel next, and finally propane appliances and systems last. The worst offender in the propane category was named …
13 Forum: GMCnet «» Posted on: Wed, 17 April 2019 05:54 «» By: Ken Henderson
Re: [GMCnet] Air bag plumbing size
…Kelly, I don't understand all the traffic for this. A simple Google search for "1/4 npt male to 1/4 tubing" yields over a million results (many inappropriate, of course). Here's one of them: https://www.amazon.com/Pcs-Tube-push-connect-…
14 Forum: GMCnet «» Posted on: Mon, 15 April 2019 21:09 «» By: Dolph Santorine
Re: [GMCnet] Air bag plumbing size
… A number of our vendors have nicely put together “kits” that will allow you to do this. You might want to reach out to them. HTH Dolph Santorine DE AD0LF Wheeling, West Virginia 1977 ex-Palm Beach TZE167V100820 Sullybuilt Bags, Reaction Arms, …
15 Forum: GMCnet «» Posted on: Fri, 12 April 2019 06:42 «» By: Jp Benson
Re: [GMCnet] Why put in thicker body pads then GM engineeringcalled for.?
… Using 1" pads gave enough clearance to move the fuel fill to the center of the coach. It was nice to get rid of that long tube inside of the frame rail and all the rubber parts attached to it. I was also able to increase my DIY gray tank capacity…
16 Forum: GMCnet «» Posted on: Sat, 30 March 2019 15:16 «» By: k2gkk
Re: [GMCnet] Keeping critters away while camping
…helpful info. As for ants, especially if they are actually IN your RV, boat, or home, I have found a VERY useful product (after trying many). It even rids us of those annoying but basically harmless Pi$$ ants. The product is "TERRO" liquid …
17 Forum: GMCnet «» Posted on: Wed, 13 March 2019 09:47 «» By: BobDunahugh
Re: [GMCnet] 11 Pre WWII Lincolns ( Non GMC )
…for posting. Be interesting on how, and why they never got finished. More of a hording thing in this case. A few years ago. I decided that I needed to clear out my extra parts of the cars that I have. Didn't want to put my kids, having to deal with it …
18 Forum: GMCnet «» Posted on: Mon, 11 March 2019 14:13 «» By: Bruce Hart
Re: [GMCnet] Table for GMC
…have one that I have been trying to get rid of. On Mon, Mar 11, 2019 at 11:35 AM Bob BRAAF via Gmclist < gmclist@list.gmcnet.org> wrote: > Our '76 Eleganza II GMC has been modified so that the dinette was removed > and the rear area …
19 Forum: GMCnet «» Posted on: Sun, 03 March 2019 10:49 «» By: James Hupy
Re: [GMCnet] Best Practice - Aluminum or HardBlok in manifold?
…are a couple of configurations of factory exhaust systems. They all have two mufflers. Followed by a "Y" pipe. Then into a long exhaust pipe down the passenger side of the coach. Then, the fun begins. Aftermarket stuff. Double inlet/single …
20 Forum: GMCnet «» Posted on: Mon, 18 February 2019 04:58 «» By: Ken Burton
Re: [GMCnet] Vibration
…like the 4th url I posted was for the thumbnail and not the picture. So I went back and corrected it. Emailers I know you never get corrected postings so if you want to see the corrected post, here it is: http://www.gmc.mybirdfeeder.net/GMCforum/…
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