| [GMCnet] Dual Fuel Onan [message #305758] |
Sun, 21 August 2016 19:27  |
glwgmc
Messages: 1014
Registered: June 2004
Karma: 10
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Senior Member |
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All the presentation materials will be available on the GMCWS web site right after the event. I don’t know if anyone will record and post video or not at this point but the presentation materials will be comprehensive enough that I think you will easily be able to follow along. The design is completed for the dual fuel part of the kit, but the right injector for our old Onans is not yet finalized. That is what the conversion company is working on right now.
Jack C. asked about high pressure or low pressure feed for the Onan. Turns out you can use either as there are demand regulators already available for both high and low pressure propane. High pressure is what comes out of the tank before the regulator and low pressure is what comes out after the regulator. The low pressure vapor coming out of your existing tank mounted regulator appears to have plenty of capacity but that is still subject to testing with the selected injector to confirm. Our old Onan carb is quite different from many of the current gas generators so it is less than a slam dunk to get that part right and still allow the Onan to run on either crap gas or propane by simply flipping a switch. Another major design requirement is that the system be self priming so you can select the fuel of choice and start the Onan hot or cold from inside the coach. I also want positive gas and propane shut off from the inside as well. I don’t know about you, but the last thing I want to do when I need my generator is to have to go outside to do anything.
I don’t yet have a good handle on pricing, but it will not be painful and likely less than most would guess. At this stage it is a work in process.
Jerry
Jerry Work
The Dovetail Joint
Fine furniture designed and hand crafted in the 1907 former Masonic Temple building in historic Kerby, OR
glwork@mac.com
http://jerrywork.com
=============
Message: 1
Date: Sun, 21 Aug 2016 18:59:13 -0400
From: Sailorcto
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Dual Fuel Onan
Message-ID:
Content-Type: text/plain; charset=us-ascii
Very interesting. Two questions for you Jerry:
1.) For those of us unable make it to the GMCWS Rally, any chance this will be video taped?
2.) Do you have an anticipated time table for the kit?
--Tony Bennett
Watkinsvile, GA
1978 26' GMC Eleganza II
1973 23' toy hauler project
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Jerry & Sharon Work
78 Royale
Kerby, OR
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| Re: [GMCnet] Dual Fuel Onan [message #305783 is a reply to message #305758] |
Sun, 21 August 2016 23:22  |
George Beckman
Messages: 1085
Registered: October 2008
Location: Colfax, CA
Karma: 11
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Senior Member |
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glwgmc wrote on Sun, 21 August 2016 17:27All the presentation materials will be available on the GMCWS web site right after the event. I don't know if anyone will record and post video or not at this point but the presentation materials will be comprehensive enough that I think you will easily be able to follow along. The design is completed for the dual fuel part of the kit, but the right injector for our old Onans is not yet finalized. That is what the conversion company is working on right now.
Jack C. asked about high pressure or low pressure feed for the Onan. Turns out you can use either as there are demand regulators already available for both high and low pressure propane. High pressure is what comes out of the tank before the regulator and low pressure is what comes out after the regulator. The low pressure vapor coming out of your existing tank mounted regulator appears to have plenty of capacity but that is still subject to testing with the selected injector to confirm.
I run mine on low pressure with an electric cutoff to stop flow when it is off.
Some have asked about fuel capacity. That has not been a problem so far, but it does use fuel and so you are not going to run AC 10 hours without a refill. Jerry's dual fuel will take care of that.
One interesting event. Last year Randy Vanwinlkes, KenHen and KerryP and we Californians, were treking across the midwest on a hot day toward Pueblo. I got tired of midwest muggy even with the dash unit and Ruth started the Onan. We ran it about three hours. When we stopped in Dodge City I decided to lift the lid and see how much propane I had left. Plenty. But I was surprised to see a snowball of a regulator and local piping. The Onan never burped once. I tossed a glass of water on it and we kept going. Watch Jerry's presentation and notes. Mine starts in about three turns and never sputters, flutters or burps. Runs at sea level and altitude.
( I didn't use dual. I converted to propane because every time I ran the Onan in the day and we went to bed that night, Ruth would say, "I am loosing brain cells, here!" She can smell on part per quadrillian. I wanted to run the whole coach on propane but my propane advisor man laughed at me.)
Do I hear snickering?
'74 Eleganza, SE, Howell + EBL
Best Wishes,
George
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| Re: [GMCnet] Dual Fuel Onan [message #305917 is a reply to message #305783] |
Wed, 24 August 2016 04:25 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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REALLY ANXIOUS TO HEAR JERRY AT COOS BAY
read here to see what we are doing to go to propan here at SOOR country
http://gmc49ers.blogspot.com/2015/09/onan-gmc-propane-conversion.html
On Sunday, August 21, 2016, George Beckman wrote:
> glwgmc wrote on Sun, 21 August 2016 17:27
>> All the presentation materials will be available on the GMCWS web site
> right after the event. I don't know if anyone will record and post video
>> or not at this point but the presentation materials will be
> comprehensive enough that I think you will easily be able to follow along.
> The design
>> is completed for the dual fuel part of the kit, but the right injector
> for our old Onans is not yet finalized. That is what the conversion company
>> is working on right now.
>>
>> Jack C. asked about high pressure or low pressure feed for the Onan.
> Turns out you can use either as there are demand regulators already
>> available for both high and low pressure propane. High pressure is what
> comes out of the tank before the regulator and low pressure is what comes
>> out after the regulator. The low pressure vapor coming out of your
> existing tank mounted regulator appears to have plenty of capacity but that
> is
>> still subject to testing with the selected injector to confirm.
>
>
> I run mine on low pressure with an electric cutoff to stop flow when it is
> off.
>
> Some have asked about fuel capacity. That has not been a problem so far,
> but it does use fuel and so you are not going to run AC 10 hours without a
> refill. Jerry's dual fuel will take care of that.
>
> One interesting event. Last year Randy Vanwinlkes, KenHen and KerryP and
> we Californians, were treking across the midwest on a hot day toward Pueblo.
> I got tired of midwest muggy even with the dash unit and Ruth started the
> Onan. We ran it about three hours. When we stopped in Dodge City I decided
> to lift the lid and see how much propane I had left. Plenty. But I was
> surprised to see a snowball of a regulator and local piping. The Onan never
> burped once. I tossed a glass of water on it and we kept going. Watch
> Jerry's presentation and notes. Mine starts in about three turns and never
> sputters, flutters or burps. Runs at sea level and altitude.
>
> ( I didn't use dual. I converted to propane because every time I ran the
> Onan in the day and we went to bed that night, Ruth would say, "I am loosing
> brain cells, here!" She can smell on part per quadrillian. I wanted to run
> the whole coach on propane but my propane advisor man laughed at me.)
>
> Do I hear snickering?
>
> --
> '74 Eleganza, SE, Howell + EBL
> Best Wishes,
> George
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
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http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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