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Re: [GMCnet] Onan - Vapor Lock? [message #178589 is a reply to message #178564]

Tue, 31 July 2012 19:30

USAussie

Messages: 15912
Registered: July 2007
Location: Sydney, Australia

Karma:

Senior Member

Steve,

The solenoid has two wires going to it (+/-) they come over from the control board. It appeared to me that it is either on/open or
off/closed. I don't know of any device on the Onan that would cause it to regulate pressure or flow from the tank to the pump /
carb.

I vaguely remember reading that the solenoid was added because of some Canadian rule.

Your idea of relocating the Onan pump is a good idea; if the new pump doesn't work that's what I'll do. I reckon you will be able to
mount it to one of the rear cross members.

Regards,
Rob M.

-----Original Message-----
From: Steve Southworth

Re the solenoid valve: Someone (Dan?) had removed the Onan fuel shutoff solenoid valve and then had a problem when the fuel tank
pressurized and overwhelmed the needle valve on the Onan. Therefore I plan on leaving mine installed.

Re Onan vapor lock problem: If I encounter this, or maybe before, I will mount the Onan fuel pump at the same level as the bottom
of the tank. That way the only low pressure section of the Onan fuel supply system will be from the surface of the gas in the tank
up to the top of the tank. Once the system is primed the pump inlet would even have a slight positive static pressure.

Steve

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426

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[Message index]

		[GMCnet] Onan - Vapor Lock? By: USAussie on Mon, 30 July 2012 20:04
		Re: [GMCnet] Onan - Vapor Lock? By: armandminnie on Mon, 30 July 2012 20:35
		Re: [GMCnet] Onan - Vapor Lock? By: USAussie on Mon, 30 July 2012 21:06
		Re: [GMCnet] Onan - Vapor Lock? By: ljdavick on Mon, 30 July 2012 20:42
		Re: [GMCnet] Onan - Vapor Lock? By: USAussie on Mon, 30 July 2012 21:09
		Re: [GMCnet] Onan - Vapor Lock? By: Matt Colie on Tue, 31 July 2012 07:43
		Re: [GMCnet] Onan - Vapor Lock? By: ljdavick on Tue, 31 July 2012 11:35
		Re: [GMCnet] Onan - Vapor Lock? By: hal kading on Tue, 31 July 2012 11:56
		Re: [GMCnet] Onan - Vapor Lock? By: USAussie on Tue, 31 July 2012 19:41
		Re: [GMCnet] Onan - Vapor Lock? By: Mr ERFisher on Wed, 01 August 2012 08:25
		Re: [GMCnet] Onan - Vapor Lock? By: USAussie on Sun, 05 August 2012 15:15
		Re: [GMCnet] Onan - Vapor Lock? By: Ken Burton on Sun, 05 August 2012 16:03
		Re: [GMCnet] Onan - Vapor Lock? By: USAussie on Sun, 05 August 2012 16:21
		Re: [GMCnet] Onan - Vapor Lock? By: Carl S. on Sun, 05 August 2012 20:37
		Re: [GMCnet] Onan - Vapor Lock? By: Ken Burton on Sun, 05 August 2012 22:39
		Re: [GMCnet] Onan - Vapor Lock? By: USAussie on Mon, 06 August 2012 09:57
		Re: [GMCnet] Onan - Vapor Lock? By: USAussie on Wed, 08 August 2012 23:13
		Re: [GMCnet] Onan - Vapor Lock? By: ljdavick on Thu, 09 August 2012 01:07
		Re: [GMCnet] Onan - Vapor Lock? By: Ken Burton on Thu, 09 August 2012 02:03
		Re: [GMCnet] Onan - Vapor Lock? By: Dennis sch on Mon, 30 July 2012 20:51
		Re: [GMCnet] Onan - Vapor Lock? By: Carl S. on Mon, 30 July 2012 22:54
		Re: [GMCnet] Onan - Vapor Lock? By: k2gkk on Mon, 30 July 2012 21:49
		Re: [GMCnet] Onan - Vapor Lock? By: USAussie on Mon, 30 July 2012 22:32
		Re: [GMCnet] Onan - Vapor Lock? By: Ken Burton on Mon, 30 July 2012 23:49
		Re: [GMCnet] Onan - Vapor Lock? By: captjack on Mon, 30 July 2012 21:54
		Re: [GMCnet] Onan - Vapor Lock? By: USAussie on Mon, 30 July 2012 22:30
		Re: [GMCnet] Onan - Vapor Lock? By: midlf on Tue, 31 July 2012 13:19
		Re: [GMCnet] Onan - Vapor Lock? By: USAussie on Tue, 31 July 2012 19:30
		Re: [GMCnet] Onan - Vapor Lock? By: midlf on Tue, 31 July 2012 22:19
		Re: [GMCnet] Onan - Vapor Lock? By: USAussie on Tue, 31 July 2012 22:42
		Re: [GMCnet] Onan - Vapor Lock? By: k2gkk on Tue, 31 July 2012 22:55
		Re: [GMCnet] Onan - Vapor Lock? By: USAussie on Tue, 31 July 2012 23:26
		Re: [GMCnet] Onan - Vapor Lock? By: ljdavick on Wed, 01 August 2012 00:43
		Re: [GMCnet] Onan - Vapor Lock? By: USAussie on Wed, 01 August 2012 00:56
		Re: [GMCnet] Onan - Vapor Lock? By: Ken Burton on Wed, 01 August 2012 01:28
		Re: [GMCnet] Onan - Vapor Lock? By: Steven Ferguson on Wed, 01 August 2012 06:33

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