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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: Wed, 13 September 2017 21:08 «» By: rjw
JC-4 Vacuum Pump??
…getting ready to leave for the Elkhart rally, I had a conversation with a well respected and reliable GMCer about vacuum pumps. I had mentioned that I have installed in my coach the often recommended "JC-4 Vacuum Pump". He remarked that most …
2 Forum: GMCnet «» Posted on: Sun, 10 September 2017 23:26 «» By: BobDunahugh
Re: [GMCnet] Need a GOOD relay to run my two fuel pumps. As my new China one just quit.
…Randy. I did go with your suggestion with the 5 pin relay. Thank you. The pumps are running with about 4 Amps. The rely is rated at 40 Amps. I just love this setup. Should have installed that setup when I had the carb. And Randy. My idle in drive is now …
3 Forum: GMCnet «» Posted on: Sun, 10 September 2017 21:11 «» By: Gary Worobec
Re: [GMCnet] no spark on HEI
…Dick’s response. What a guy!! Sunday night even. i’ll report back. > Gary any module will prove it out ---if you want a specific one ask for a 1975-6-7 > chev 350 for a Camaro -corvette or HD police package. > > First-----Look …
4 Forum: GMCnet «» Posted on: Sun, 10 September 2017 20:06 «» By: powerjon
Re: [GMCnet] no spark on HEI
…use a 7-pin module in our Accel Gen 6 MPFI and I have had a failure about 3 years ago, and I also went with a remote coil setup. The remote coil article will be in the next GMCMI newsletter. http://www.gmcmhphotos.com/photos/general-pictures/p63684-7-…
5 Forum: GMCnet «» Posted on: Sun, 10 September 2017 18:40 «» By: Ken Henderson
Re: [GMCnet] no spark on HEI
…Good. You know what you're working with. I just hadn't understood that. Ken H. On Sun, Sep 10, 2017 at 7:15 PM, Gary EarthLink wrote: > Ken, It's the seven pin module. The distributor is controlled by the EBL. > I got rid of the Paterson …
6 Forum: GMCnet «» Posted on: Sun, 10 September 2017 18:15 «» By: Gary Worobec
Re: [GMCnet] no spark on HEI
…Ken, It's the seven pin module. The distributor is controlled by the EBL. I got rid of the Paterson Pertronics when I installed the Howell Efi Thanks, Gary Worobec > On Sep 10, 2017, at 3:35 PM, Ken Henderson wrote: > > Gary, > > …
7 Forum: GMCnet «» Posted on: Sat, 09 September 2017 11:14 «» By: BobDunahugh
Re: [GMCnet] Need a GOOD relay to run my two fuel pumps. As my new China one just quit.
…Terry. I'm not running both pumps at the same time. I've had the main/aux tank valve die on the road. So I wanted to have a backup fuel pump already installed. And get rid of that gas switch over valve. So now I have the dash gas tank switch operate a…
8 Forum: GMCnet «» Posted on: Mon, 04 September 2017 20:25 «» By: Ken Henderson
Re: [GMCnet] Assorted fuel issues
…Paul, Most of my questions/advice have already been given, but I became concerned as soon as I saw "Edelbrock Performer manifold". I had one of those when I got my coach. Before I got it home, the engine destroyed itself. With that manifold …
9 Forum: GMCnet «» Posted on: Sat, 02 September 2017 10:19 «» By: Ken Henderson
Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI
…Aaron, If the link led to a DPST relay, I apologize for not searching more carefully; you must use a DPDT relay, which will, indeed, be a little more expensive. They're frequently available on eBay for pretty good prices; I can't give you a number off-…
10 Forum: GMCnet «» Posted on: Fri, 01 September 2017 21:38 «» By: Ken Henderson
Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI
…Aaron, You overestimate the cost and complexity of a DIY auto transfer switch. Here's a first-look relay for $18.49: http://www.mouser.com/ProductDetail/TE-Connectivity-PB/T92S7D22-110/?qs=sGAEpiMZZMtSzCF3XBhmW6vMa%2fMpJxoP71VMV4XEUfE%3d Only one relay …
11 Forum: GMCnet «» Posted on: Fri, 01 September 2017 20:29 «» By: Aaron
Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI
… That's correct - my busses are separate at all boxes on my coach - the ground and neutral are only connected at the generator and that neutral is not switched anywhere, nor is the ground from the generator. The comment about the neutral and ground …
12 Forum: GMCnet «» Posted on: Fri, 01 September 2017 12:47 «» By: Mr ERFisher
Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI
…three On Fri, Sep 1, 2017 at 10:43 AM Jon Roche wrote: > You could get rid of the transfer switch entirely?? > > Most gmc's do not have a transfer switch, the onan wires up to a female > outlet, and you either plug coach into that …
13 Forum: GMCnet «» Posted on: Fri, 01 September 2017 12:37 «» By: lqqkatjon
Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI
…could get rid of the transfer switch entirely?? Most gmc's do not have a transfer switch, the onan wires up to a female outlet, and you either plug coach into that outlet for generator use, Or it plugs directly into shore power. Where the onan is…
14 Forum: GMCnet «» Posted on: Fri, 01 September 2017 11:25 «» By: Aaron
First Post - Wiring 78 Royals Neutral Ground short trips GFI
…everyone, I bought my Royale in early March, made it to Shawnee (it was just down the road.) I've been working on my coach ('78 rear dinette Royale) as a I can, I've read a lot of posts since then. I'm posting this because 1. I haven't been able…
15 Forum: GMCnet «» Posted on: Sun, 27 August 2017 14:29 «» By: emerystora
Re: [GMCnet] OK, next Onan question
…don't know how the spell checker put Obama into that message. I thought we got rid of him! Emery Stora > On Aug 27, 2017, at 12:20 PM, Jim Miller wrote: > >> On Aug 27, 2017, at 1:29 PM, John Watkins wrote: >> >> You do …
16 Forum: GMCnet «» Posted on: Sun, 27 August 2017 08:11 «» By: JShot
Coolant Cap
If anyone has an extra one of these they'd like to get rid of, I would appreciate it if you could bring it to Elkhart. http://www.gmcmhphotos.com/photos/misc/p63635-coolant-bottle-cap.html Thanks, Shot
17 Forum: GMCnet «» Posted on: Wed, 23 August 2017 01:59 «» By: Ronald Pottol
[GMCnet] Old rims and tires free, SF Bay area
…I'm taking the plunge to 16" alloy rims, and so am getting rid of my existing load range D bias 16.5 tires and rims. Don't mount radials on these! I did just drive 1300+ miles on them, no idea on age (spare scares me). I don't expect anyone wants …
18 Forum: GMCnet «» Posted on: Sat, 19 August 2017 22:01 «» By: Dennis S
Re: [GMCnet] Oil sputtering (4K) Onan
…Peer/Matt Another old thread talking about the pressure generated by the engine design with the cylinders operating on the same cycle. http://gmc.mybirdfeeder.net/GMCforum/index.php?t=msg&goto=24185&rid=904&srch=Onan+oil+dipstick+blow#…
19 Forum: GMCnet «» Posted on: Sat, 19 August 2017 13:34 «» By: Dennis S
Re: [GMCnet] Oil sputtering (4K) Onan
Peer Also check this old thread for possible cures. http://gmc.mybirdfeeder.net/GMCforum/index.php?t=msg&goto=302972&rid=904&srch=Onan+4KW+blowing+oil+out#msg_302972 Dennis
20 Forum: GMCnet «» Posted on: Fri, 18 August 2017 08:08 «» By: jhbridges
Re: [GMCnet] '73 - engine department question
…like a good way to set the place on fire. Wait till the engine is >cold< and then take the rubber hose off and put a proper cap on the line. It might have been for a gauge or someone's idea of how to beat vapor lock,. Either way, get rid of it…
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