| EFI for Onan? [message #180384] |
Wed, 15 August 2012 14:32  |
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RF_Burns
Messages: 2277
Registered: June 2008
Location: S. Ontario, Canada
Karma: 3
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Has anyone installed an EFI kit on a Onan 6Kw?
I know, why would anyone want to do that.. well just because I can!
Here is a kit that handles 2 cylinders up to 1200cc. By my calculations our 6kw Onans are ~980cc.
http://www.ecotrons.com/Small_Engine_EFI_kit.html
Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
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| Re: [GMCnet] EFI for Onan? [message #180408 is a reply to message #180384] |
Wed, 15 August 2012 17:57  |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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That is cool! What effect would Propane have on fuel injection, or is the Propane set-up separate?
Larry Davick
Fremont, California
A Mystery Machine
'76 (ish) Palm Beach
----- Original Message -----
From: "Bruce Hislop" <bruce@perthcomm.com>
To: gmclist@temp.gmcnet.org
Sent: Wednesday, August 15, 2012 12:32:10 PM
Subject: [GMCnet] EFI for Onan?
Has anyone installed an EFI kit on a Onan 6Kw?
I know, why would anyone want to do that.. well just because I can!
Here is a kit that handles 2 cylinders up to 1200cc. By my calculations our 6kw Onans are ~980cc.
http://www.ecotrons.com/Small_Engine_EFI_kit.html
--
Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
Hubler 1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: [GMCnet] EFI for Onan? [message #180410 is a reply to message #180408] |
Wed, 15 August 2012 18:56 |
George Beckman
Messages: 1085
Registered: October 2008
Location: Colfax, CA
Karma: 11
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| ljdavick wrote on Wed, 15 August 2012 15:57 |
That is cool! What effect would Propane have on fuel injection, or is the Propane set-up separate?
Larry Davick
Fremont, California
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I believe they would be separate. My propane kit has a Venturi before the Onan carb. I only use the carb for the throttle.
'74 Eleganza, SE, Howell + EBL
Best Wishes,
George
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| Re: EFI for Onan? [message #180452 is a reply to message #180384] |
Wed, 15 August 2012 22:57 |
Adrien G.
Messages: 474
Registered: May 2008
Location: Burns Flat, OK 73624
Karma: 1
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Bruce,
From the parts lay out, with a modified (with added injector ports) stock intake manifold should do very nicely with one throttle body. Injectors might need heat shielding from the exhaust manifold heat.
The kit price says to be $ 299.00 to $ 599.00
I wander if they would make a special kit for our setup.
2 injector, 1 O2 sensor, 1 TB, and the rest.
Adrien & Jenny Genesoto
75 Glenbrook (26-3) Mods LS3.70 FD / Reaction Sys / 80mm Front&Intermidiate / Hydroboost / 16" Tires / Frame Rebuild / Interior Rebuild
Yuba City,Ca. Text 530-nine-3-three-3-nine-nine-6
[Updated on: Wed, 15 August 2012 23:15] Report message to a moderator |
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| Re: [GMCnet] EFI for Onan? [message #180457 is a reply to message #180384] |
Thu, 16 August 2012 01:02 |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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Is there an easy way to plumb the return line to the main tank? I’m thinking we could Tee into the vent but that might be a no-no.
Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, CA
On Aug 15, 2012, at 12:32 PM, Bruce Hislop wrote:
>
> Has anyone installed an EFI kit on a Onan 6Kw?
>
> I know, why would anyone want to do that.. well just because I can!
>
> Here is a kit that handles 2 cylinders up to 1200cc. By my calculations our 6kw Onans are ~980cc.
>
> http://www.ecotrons.com/Small_Engine_EFI_kit.html
>
> --
> Bruce Hislop
> ON Canada
> 77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
> Hubler 1 ton front end
> http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
> My Staff says I never listen to them, or something like that
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: [GMCnet] EFI for Onan? [message #180491 is a reply to message #180461] |
Thu, 16 August 2012 10:17 |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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So what would be the harm of plumbing the return line into the feed line before the pump, assuming you have a one-way flow valve in the return line? Is that just asking for trouble?
Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, CA
On Aug 16, 2012, at 4:09 AM, Bruce Hislop wrote:
> No easy way to make a proper fuel return. I reluctantly plumbed my engine return to the filler tube.
>
> Only real way would be to drop the tanks and add another line.
>
> I've often wonder if the agitation of the return fuel causes more evaporation of the fuel to fumes... My canister is not hooked up so any fumes are lost for me. I do have a canister purge valve to hook up sometime and the EBL has facilities to control it.
>
> --
> Bruce Hislop
> ON Canada
> 77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
> Hubler 1 ton front end
> http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
> My Staff says I never listen to them, or something like that
> _______________________________________________
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: [GMCnet] EFI for Onan? [message #180519 is a reply to message #180491] |
Thu, 16 August 2012 12:33 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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I suspect the fuel in that loop would get hot very quickly. Like my
pressure washer: "...don't leave the spray nozzle closed for over 30 s.
(or something like that)...",
Ken H.
On Thu, Aug 16, 2012 at 11:17 AM, Larry Davick wrote:
> So what would be the harm of plumbing the return line into the feed line
> before the pump, assuming you have a one-way flow valve in the return line?
> Is that just asking for trouble?
>
>
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Ken Henderson
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www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] EFI for Onan? [message #180553 is a reply to message #180457] |
Thu, 16 August 2012 20:06 |
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mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
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| ljdavick wrote on Wed, 15 August 2012 23:02 |
Is there an easy way to plumb the return line to the main tank? I’m thinking we could Tee into the vent but that might be a no-no.
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Early coaches already have a place.
My '73 has a un-used fitting fitting on the driver's side of the rear tank. If I understand it, it was for some type of return from the fuel separator in the driver's side rear wheel well. They changed the separator in 1973, but left the fitting. Most likely until they used up all of those tanks. Right now it is just a place for leaks to form.
I am not sure when the newer coaches got tanks without this fitting.
Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo'
http://m000035.blogspot.com
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| Re: EFI for Onan? [message #180557 is a reply to message #180556] |
Thu, 16 August 2012 21:24 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
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| rf_burns wrote on Thu, 16 August 2012 20:53 |
Mike,
I believe that fitting is used for the generator fuel feed on later models.
Some transmodes though just tapped into the engine's fuel line.
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Nope - that fitting on the side of the tank was the return for a fuel vapor separator device that looked like a large, square, flat can with 4 nipples on it. In all the GMC literature I have seen one picture of it but can't remember where right now. It would work as a fuel return port. I chose not to use this as I want all my fuel return to go to the aux tank for a number of reasons.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: EFI for Onan? [message #180559 is a reply to message #180557] |
Thu, 16 August 2012 21:34 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
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| midlf wrote on Thu, 16 August 2012 21:24 |
Nope - that fitting on the side of the tank was the return for a fuel vapor separator device that looked like a large, square, flat can with 4 nipples on it. In all the GMC literature I have seen one picture of it but can't remember where right now. It would work as a fuel return port. I chose not to use this as I want all my fuel return to go to the aux tank for a number of reasons.
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I knew I had seen it somewhere. Here is a picture of that very early fuel vapor separator:
http://www.gmcmhphotos.com/photos/fuel-tank-r-amp-r/p13484.html
and here is a picture of the referenced tank fitting:
http://www.gmcmhphotos.com/photos/getting-started/p24745-getting-started.html
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: EFI for Onan? [message #180604 is a reply to message #180556] |
Fri, 17 August 2012 07:08 |
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mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
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| rf_burns wrote on Thu, 16 August 2012 18:53 |
Mike,
I believe that fitting is used for the generator fuel feed on later models.
Some transmodes though just tapped into the engine's fuel line.
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On my 1973, there was the un-used fitting on the side AND the "standard" one in the top designed to feed the generator.
The other holes in the tank are the vent, the sender unit (with two fittings in it), the fill tube and the drain. The aux (or front tank) doesn't have the first two fittings.
Yes, I know how Coachman tapped into the main fuel lines rather than dropping the tank(s). I have a few of them.
Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo'
http://m000035.blogspot.com
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