| onan 6k question [message #224556] |
Fri, 04 October 2013 18:06  |
chasingsummer
Messages: 434
Registered: May 2011
Location: asheboro, nc
Karma: 0
|
Senior Member |
|
|
fuel line coming in to generator goes thru some electrical device before it goes to fuel pump.
parrts book page 28-48 shows fuel pump, but not other thing.
what is it, and can i bypass to rum genny?
for 2 days in a row generator would run for maybe hour then die. once cooled off would work again maybe hour.
i found wire on last leg and helped it along. i assume this devise is causing my generator fuel pump not to run. at first i thought it was a pump, but parts book cleared that up.
thanks
bgk
brian
asheboro, nc
75 eleganza, 74 build
119k miles and counting,
DOG HOUSE
|
|
|
|
|
|
| Re: onan 6k question [message #224558 is a reply to message #224556] |
Fri, 04 October 2013 18:21  |
Dennis S
Messages: 3046
Registered: November 2005
Karma: 2
|
Senior Member |
|
|
| chasingsummer wrote on Fri, 04 October 2013 18:06 |
fuel line coming in to generator goes thru some electrical device before it goes to fuel pump.
parrts book page 28-48 shows fuel pump, but not other thing.
what is it, and can i bypass to rum genny?
for 2 days in a row generator would run for maybe hour then die. once cooled off would work again maybe hour.
i found wire on last leg and helped it along. i assume this devise is causing my generator fuel pump not to run. at first i thought it was a pump, but parts book cleared that up.
thanks
bgk
|
Later coaches had a fuel cut off in the Onan line.
Dennis
Dennis S
73 Painted Desert 230
Memphis TN Metro
[Updated on: Fri, 04 October 2013 18:52] Report message to a moderator |
|
|
|
| Re: onan 6k question [message #224564 is a reply to message #224558] |
Fri, 04 October 2013 18:42 |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
|
Senior Member |
|
|
It is a fuel cut-off solenoid. Designed to allow fuel to flow only when genset is energized. Can be removed, if you wish.
Tom, MS II
2012 Phoenix Cruiser model 2552
KA4CSG
|
|
|
|
| Re: [GMCnet] onan 6k question [message #224566 is a reply to message #224556] |
Fri, 04 October 2013 18:57 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
|
Senior Member |
|
|
Brian,
That is probably the fuel shutoff solenoid as seen on pages 30, item 42 listed on page 31 of the onan operators manual and parts catalog.
<http://www.bdub.net/manuals/Onan/Onan6kwNH_Operator-Parts.pdf>
Page 26-48 is for the 4K generator and not the 6K generator.
It is a safety device, and some have removed it, but IMHO I would not. The choice is yours.
The Onan Major Service manual is located at:
http://www.bdub.net/manuals/Onan/Onan6kwNH_Major-Service.pdf
Has a lot of trouble shooting information.
Best of luck!
JR Wright
78 Buskirk Stretch
75 Avion
Michigan
On Oct 4, 2013, at 7:06 PM, brian <chasingsummer@triad.rr.com> wrote:
>
>
> fuel line coming in to generator goes thru some electrical device before it goes to fuel pump.
> parrts book page 28-48 shows fuel pump, but not other thing.
> what is it, and can i bypass to rum genny?
> for 2 days in a row generator would run for maybe hour then die. once cooled off would work again maybe hour.
> i found wire on last leg and helped it along. i assume this devise is causing my generator fuel pump not to run. at first i thought it was a pump, but parts book cleared that up.
> thanks
> bgk
> --
> brian
> asheboro, nc
> 75 eleganza 2 74 build
> 118k miles and counting,
> DOG HOUSE
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
|
|
|
|
|
|
| Re: onan 6k question [message #224568 is a reply to message #224556] |
Fri, 04 October 2013 19:19 |
Otterwan
Messages: 946
Registered: July 2013
Location: Lynnwood (north of Seattl...
Karma: 0
|
Senior Member |
|
|
| chasingsummer wrote on Fri, 04 October 2013 16:06 |
fuel line coming in to generator goes thru some electrical device before it goes to fuel pump.
parrts book page 28-48 shows fuel pump, but not other thing.
what is it, and can i bypass to rum genny?
for 2 days in a row generator would run for maybe hour then die. once cooled off would work again maybe hour.
i found wire on last leg and helped it along. i assume this devise is causing my generator fuel pump not to run. at first i thought it was a pump, but parts book cleared that up.
thanks
bgk
|
This is a fuel solenoid that only opens when it has power. You can test it by removing the line to the carburetor and placing it in a suitable container, then jumping terminals 9 to 11 on the control board. The pump should run and fuel should flow,
1977 Birchaven, Lynnwood WA - "We may not be able to stop all evil in the world, but I know that how we treat one another is entirely up to us."
|
|
|
|
| Re: onan 6k question [message #224579 is a reply to message #224556] |
Fri, 04 October 2013 20:27 |
Steve
Messages: 506
Registered: September 2013
Location: East Greenville, Pa
Karma: 1
|
Senior Member |
|
|
I will be trouble shooting the same issue tomorrow. Need to test the fuel pump and fuel solenoid. Will remove fuel line from carb and jump the appropriate pins to test for fuel flow.
The weekend is finally here so I can spend some quality time with my onan. Also plan to go through the rpm/frequency setting.
1978 GMC Royal
Eastern Pennslyvania
1968 Chevrolet C20 396 Camper Special
1969 Chevrolet C20 Camper Special
1985 Buick Electra Park Avenue
1992 Camaro 25th Anniversary Heretage Edition Black
|
|
|
|
| Re: onan 6k question [message #224589 is a reply to message #224556] |
Fri, 04 October 2013 21:57 |
dpottebaum
Messages: 100
Registered: January 2013
Location: Bondurant, Iowa
Karma: 0
|
Senior Member |
|
|
my bet is on the fuel pump. Just fixed mine last weekend and it had the same symptoms. Shut off solenoid was fine, but pump was shot.
Dave Pottebaum
Bondurant, Iowa
1978 Royale
|
|
|
|
|
|
| Re: onan 6k question [message #224593 is a reply to message #224558] |
Fri, 04 October 2013 22:16 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
|
Senior Member |
|
|
| Dennis S wrote on Fri, 04 October 2013 18:21 |
Later coaches had a fuel cut off in the Onan line.
Dennis
|
My early '74 26 foot has the Onan fuel cutoff solenoid.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
|
|
|
|
| Re: onan 6k question [message #224607 is a reply to message #224593] |
Sat, 05 October 2013 06:37 |
chasingsummer
Messages: 434
Registered: May 2011
Location: asheboro, nc
Karma: 0
|
Senior Member |
|
|
update
wire on what maybe cut off is broken, i plan to look at removing once coffee is in me.
i dont rmember hearing fuel pump run, i did not grap pump while starting to feel vibration?
is there a cheep fuel pump that will drive the onan?
coffee time
thanks all
brian
asheboro, nc
75 eleganza, 74 build
119k miles and counting,
DOG HOUSE
|
|
|
|
| Re: [GMCnet] onan 6k question [message #224608 is a reply to message #224607] |
Sat, 05 October 2013 06:44 |
Jim jr
Messages: 26
Registered: May 2009
Location: Hamilton, Oh.
Karma: 0
|
Junior Member |
|
|
Napa has 4 pound Facet pump that works fine,$30 and change.
Jim Miller
Ham. Ohio
On Oct 5, 2013, at 7:37 AM, brian wrote:
>
>
> update
> wire on what maybe cut off is broken, i plan to look at removing once coffee is in me.
> i dont rmember hearing fuel pump run, i did not grap pump while starting to feel vibration?
> is there a cheep fuel pump that will drive the onan?
> coffee time
> thanks all
>
> --
> brian
> asheboro, nc
> 75 eleganza 2 74 build
> 118k miles and counting,
> DOG HOUSE
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
| Re: [GMCnet] onan 6k question [message #224618 is a reply to message #224607] |
Sat, 05 October 2013 09:22 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
|
Senior Member |
|
|
Brian,
The Onan fuel pumps are usually pretty durable and I wouldn't just rush off and replace it unless it is truly failed. Have you taken it apart and cleaned it? A lot of times if it has sat unused for long periods of time they get gummed up inside and sticks. Take the bottom cover off, it turns counter clockwise looking from the bottom, Clean the filter element with solvent and gently blow with air. Shoot some Carb Cleaner in the inlet, outlet and up into the internal and let it sit for a few minutes. Gently rap the pump body from the top with a rubber hammer. Put some power (directly from a 12VDC source) on to see if it makes noise. Put it back together and see if you were successful and it pumps.
See Figure 30 on page 25 of:
http://www.bdub.net/manuals/Onan/Onan6kwNH_Major-Service.pdf
JR Wright
78 Buskirk Stretch
75 Avion
Michigan
On Oct 5, 2013, at 7:37 AM, brian <chasingsummer@triad.rr.com> wrote:
>
>
> update
> wire on what maybe cut off is broken, i plan to look at removing once coffee is in me.
> i dont rmember hearing fuel pump run, i did not grap pump while starting to feel vibration?
> is there a cheep fuel pump that will drive the onan?
> coffee time
> thanks all
>
> --
> brian
> asheboro, nc
> 75 eleganza 2 74 build
> 118k miles and counting,
> DOG HOUSE
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
|
|
|
|
GMCforum
Search
Help
Register
Login
Home
