Home » Public Forums » GMCnet » [GMCnet] onan jumpers
|
|
| Re: [GMCnet] onan jumpers [message #133737 is a reply to message #133736] |
Thu, 07 July 2011 20:56   |
 |
mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
|
Senior Member |
|
|
On the board, there are the "upper pins" and the "lower pins." I am fairly sure that pins with the same numbers are connected inside the board. But they are talking about the lower pins... the upper pins are for the remote switch.
The diagram does have more than one of each number.... on each end of the same wire that is connected to the pin. The wires merge into a "single line" on the picture... simulating the wire bundle on most Onans.
OBTW, I jump pins 9 and 6 instead of 9 and 5. It leaves the on/off switch active.
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
|
|
|
|
| Re: [GMCnet] onan jumpers [message #133740 is a reply to message #133736] |
Thu, 07 July 2011 21:00 |
Dennis S
Messages: 3046
Registered: November 2005
Karma: 2
|
Senior Member |
|
|
Dave,
To add to what Mike wrote..
Looking at the diagram -- top right corner marked Control board assy A1 -- bottom right the third connection from the right, marked 9 (nine), further left to the seventh connection go up to 5 (five).
Does this help?
Dennis
Dennis S
73 Painted Desert 230
Memphis TN Metro
[Updated on: Thu, 07 July 2011 21:36] Report message to a moderator |
|
|
|
| Re: [GMCnet] onan jumpers [message #133747 is a reply to message #133740] |
Thu, 07 July 2011 21:22 |
Dave Motorhome
Messages: 175
Registered: July 2007
Karma: 2
|
Senior Member |
|
|
this place is amazing, to dark to look now, but tomorrow i will give it a go.
thanks.
David Paliotta
75 Glenbrook
Tulsa, OK
http://75glenbrook.googlepages.com/
On Thu, Jul 7, 2011 at 9:00 PM, Dennis Sexton <dennisfsexton@aol.com> wrote:
>
>
> Dave Motorhome wrote on Thu, 07 July 2011 20:34
>> I have cleared off every thing off my list but getting the onan
>> running. in looking at the gmcws tech area, Duane Simmons has amazing
>> trouble shooting papers, however my very basic questions is.
>> In troubleshooting i have to jump 9 to 5. (mine runs when i hold the start down)
>>
>> http://www.gmcws.org/Tech/dsimmons/onan/onan.html#run-w-switch-on
>>
>> http://www.gmcws.org/Tech/dsimmons/onan/p04.jpg
>>
>> in looking at it there are more than one 9 and 5 on the control board assembly
>>
>> thanks for every ones patience.
>>
>> --
>> David Paliotta
>> 75 Glenbrook
>> Tulsa, OK
>> http://75glenbrook.googlepages.com/
>> _______________________________________________
>
>
> Dave,
>
> To add to what Mike wrote..
>
> Looking at the diagram -- top right corner marked Control board assy A1 -- bottom right the third connection from the right, marked 9 (nine), further right to the seventh connection go up to 5 (five).
>
> Does this help?
>
> Dennis
> --
> Dennis S
> 73 Painted Desert 230
> Germantown, TN
> _______________________________________________
> 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 jumpers [message #133762 is a reply to message #133737] |
Thu, 07 July 2011 23:01 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
|
Senior Member |
|
|
Mike,
One precaution about jumping 9 to 6 instead of 9 to 5: It eliminates the
fuse protection, leaving open the possibility of burning traces on the
board, as has happened all too often.
Ken H.
On Thu, Jul 7, 2011 at 9:56 PM, Mike Miller wrote:
>
> OBTW, I jump pins 9 and 6 instead of 9 and 5. It leaves the on/off switch
> active.
>
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
|
|
|
|
| Re: [GMCnet] onan jumpers [message #133766 is a reply to message #133762] |
Fri, 08 July 2011 01:54 |
|
mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
|
Senior Member |
|
|
The 12v found on pin 6 is the same power that goes to the run time meter. I am fairly sure it is fused. (But haven't checked lately... might have done so in the past, but have forgotten....)
| Ken Henderson wrote on Thu, 07 July 2011 21:01 |
One precaution about jumping 9 to 6 instead of 9 to 5: It eliminates the
fuse protection, leaving open the possibility of burning ...
< snipped >
>
> OBTW, I jump pins 9 and 6 instead of 9 and 5. It leaves the
> on/off switch active.
|
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
|
|
|
|
| Re: [GMCnet] onan jumpers [message #133784 is a reply to message #133766] |
Fri, 08 July 2011 08:58 |
|
mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
|
Senior Member |
|
|
I just figured out how jumping pins >6< and >9< makes the Onan run and stop even with "bad boards". The power actually comes from pin >9< (fused) and when fed into pin >6< it acts as a latch for the relay >K3<. Pressing the stop button grounds the input of >k3< forcing it to deenergize.
So... Jumping pins >6< to >9< does NOT by pass the fuse.
| Mike Miller wrote on Thu, 07 July 2011 23:54 |
The 12v found on pin 6 is the same power that goes to the run time meter. I am fairly sure it is fused. (But haven't checked lately... might have done so in the past, but have forgotten....)
| Ken Henderson wrote on Thu, 07 July 2011 21:01 |
One precaution about jumping 9 to 6 instead of 9 to 5: It eliminates the
fuse protection, ...
|
|
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
|
|
|
|
| Re: [GMCnet] onan jumpers [message #133795 is a reply to message #133784] |
Fri, 08 July 2011 10:23 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
|
Senior Member |
|
|
Mike,
My apologies:
I've examined the circuit more closely in active states. I now agree with
you that the 6-9 jumper is a safe option since F1 is bypassed only
momentarily. However, as the following analysis shows, it's potentially of
limited value (Please, someone else analyze the operations to be sure the
convoluted logic hasn't discombobulated my CRS.):
START grounds K1 through K2NC. When K1 closes, it applies +12VDC BATT to
pin 6 via CR5. With the 6-9 jumper installed, that voltage is applied
directly to the ignition coil and the electric fuel pump (and solenoid
valve, if installed)(hereafter the Ignition/Fuel System). There is no
return path to any of the on-board circuits not protected by CR5, CR7, or
R2.
When the engine starts, the flywheel alternator supplies voltage to close
K2, opening K2NC, de-energizing K1 and closing K2NO. That action removes
pin 6 from +12VDC BATT and connects it through K2NO and CR7 to the F1
protected 12VDC. Only then does the LOP shutdown circuit become energized,
activating K3, closing K3NO, and activating the Ignition and Fuel systems.
Thus with the 6-9 jumper installed the Ignition/Fuel System is always
powered but ONLY if the starter is activated or the engine's running. The
LOP circuit is still powered and capable of interrupting K3, removing the
RUN supply to the Ignition/Fuel System.
Thus, the 6-9 jumper DOES seem to be a safe, effective alternative to 5-9.
And, it preserves the on-board protection of the LOP circuit. However,
that means that a flaw in the LOP circuit will prevent the engine from
continuing to run after started -- thus largely defeating the purpose of the
6-9 jumper.
Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI+ & EBL
www.gmcwipersetc.com
On Fri, Jul 8, 2011 at 9:58 AM, Mike Miller wrote:
>
>
> I just figured out how jumping pins >6< and >9< makes the Onan run and stop
> even with "bad boards". The power actually comes from pin >9< (fused) and
> when fed into pin >6< it acts as a latch for the relay >K3<. Pressing the
> stop button grounds the input of >k3< forcing it to deenergize.
>
> So... Jumping pins >6< to >9< does NOT by pass the fuse.
>
> > Ken Henderson wrote on Thu, 07 July 2011 21:01
> > > One precaution about jumping 9 to 6 instead of 9 to 5: It eliminates
> the
> > > fuse protection, ...
>
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
|
|
|
|
| Re: [GMCnet] onan jumpers [message #133804 is a reply to message #133795] |
Fri, 08 July 2011 11:50 |
Dennis S
Messages: 3046
Registered: November 2005
Karma: 2
|
Senior Member |
|
|
Ken, Mike,
So jumping 5 and 9 eliminates all board safety functions.
Jumping 6 and 9 preserves the LOP (low oil pressure) feature.
It would seem that with that knowledge it would allow trouble shooting of the oil pressure switch and associated wiring.
If so, nice to know.
Thanks,
Dennis
| Ken Henderson wrote on Fri, 08 July 2011 10:23 |
I've examined the circuit more closely in active states. I now agree with
you that the 6-9 jumper is a safe option since F1 is bypassed only
momentarily. However, as the following analysis shows, it's potentially of
limited value (Please, someone else analyze the operations to be sure the
convoluted logic hasn't discombobulated my CRS.):
START grounds K1 through K2NC. When K1 closes, it applies +12VDC BATT to
pin 6 via CR5. With the 6-9 jumper installed, that voltage is applied
directly to the ignition coil and the electric fuel pump (and solenoid
valve, if installed)(hereafter the Ignition/Fuel System). There is no
return path to any of the on-board circuits not protected by CR5, CR7, or
R2.
When the engine starts, the flywheel alternator supplies voltage to close
K2, opening K2NC, de-energizing K1 and closing K2NO. That action removes
pin 6 from +12VDC BATT and connects it through K2NO and CR7 to the F1
protected 12VDC. Only then does the LOP shutdown circuit become energized,
activating K3, closing K3NO, and activating the Ignition and Fuel systems.
Thus with the 6-9 jumper installed the Ignition/Fuel System is always
powered but ONLY if the starter is activated or the engine's running. The
LOP circuit is still powered and capable of interrupting K3, removing the
RUN supply to the Ignition/Fuel System.
Thus, the 6-9 jumper DOES seem to be a safe, effective alternative to 5-9.
And, it preserves the on-board protection of the LOP circuit. However,
that means that a flaw in the LOP circuit will prevent the engine from
continuing to run after started -- thus largely defeating the purpose of the
6-9 jumper.
Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI+ & EBL
www.gmcwipersetc.com
|
Dennis S
73 Painted Desert 230
Memphis TN Metro
|
|
|
|
| Re: [GMCnet] onan jumpers [message #133805 is a reply to message #133804] |
Fri, 08 July 2011 12:55 |
Dave Motorhome
Messages: 175
Registered: July 2007
Karma: 2
|
Senior Member |
|
|
Ok so i jump (take aligat
On Fri, Jul 8, 2011 at 11:50 AM, Dennis Sexton <dennisfsexton@aol.com> wrote:
>
>
> Ken, Mike,
>
> So jumping 5 and 9 eliminates all board safety functions.
> Jumping 6 and 9 preserves the LOP (low oil pressure) feature.
>
> It would seem that with that knowledge it would allow trouble shooting of the oil pressure switch and associated wiring.
>
> If so, nice to know.
>
> Thanks,
>
> Dennis
>
>
> Ken Henderson wrote on Fri, 08 July 2011 10:23
>> I've examined the circuit more closely in active states. I now agree with
>> you that the 6-9 jumper is a safe option since F1 is bypassed only
>> momentarily. However, as the following analysis shows, it's potentially of
>> limited value (Please, someone else analyze the operations to be sure the
>> convoluted logic hasn't discombobulated my CRS.):
>>
>> START grounds K1 through K2NC. When K1 closes, it applies +12VDC BATT to
>> pin 6 via CR5. With the 6-9 jumper installed, that voltage is applied
>> directly to the ignition coil and the electric fuel pump (and solenoid
>> valve, if installed)(hereafter the Ignition/Fuel System). There is no
>> return path to any of the on-board circuits not protected by CR5, CR7, or
>> R2.
>>
>> When the engine starts, the flywheel alternator supplies voltage to close
>> K2, opening K2NC, de-energizing K1 and closing K2NO. That action removes
>> pin 6 from +12VDC BATT and connects it through K2NO and CR7 to the F1
>> protected 12VDC. Only then does the LOP shutdown circuit become energized,
>> activating K3, closing K3NO, and activating the Ignition and Fuel systems.
>> Thus with the 6-9 jumper installed the Ignition/Fuel System is always
>> powered but ONLY if the starter is activated or the engine's running. The
>> LOP circuit is still powered and capable of interrupting K3, removing the
>> RUN supply to the Ignition/Fuel System.
>>
>> Thus, the 6-9 jumper DOES seem to be a safe, effective alternative to 5-9.
>> And, it preserves the on-board protection of the LOP circuit. However,
>> that means that a flaw in the LOP circuit will prevent the engine from
>> continuing to run after started -- thus largely defeating the purpose of the
>> 6-9 jumper.
>>
>> Ken H.
>> Americus, GA
>> '76 X-Birchaven w/Cad500/Howell EFI+ & EBL
>> www.gmcwipersetc.com
>
>
> --
> Dennis S
> 73 Painted Desert 230
> Germantown, TN
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
David Paliotta
75 Glenbrook
Tulsa, OK
http://75glenbrook.googlepages.com/
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
| Re: [GMCnet] onan jumpers [message #133806 is a reply to message #133804] |
Fri, 08 July 2011 12:59 |
Dave Motorhome
Messages: 175
Registered: July 2007
Karma: 2
|
Senior Member |
|
|
sorry, laptop sent to quick
so i jumped 5 to 9 i do not here anything.( used (alligator clips
with 12 gauge between) i volt test it, i get 12.2 across. am i jumping
right? bad fuel pump?
thanks,
David Paliotta
75 Glenbrook
Tulsa, OK
http://75glenbrook.googlepages.com/
On Fri, Jul 8, 2011 at 11:50 AM, Dennis Sexton <dennisfsexton@aol.com> wrote:
>
>
> Ken, Mike,
>
> So jumping 5 and 9 eliminates all board safety functions.
> Jumping 6 and 9 preserves the LOP (low oil pressure) feature.
>
> It would seem that with that knowledge it would allow trouble shooting of the oil pressure switch and associated wiring.
>
> If so, nice to know.
>
> Thanks,
>
> Dennis
>
>
--
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
| Re: [GMCnet] onan jumpers [message #133808 is a reply to message #133806] |
Fri, 08 July 2011 13:28 |
Dennis S
Messages: 3046
Registered: November 2005
Karma: 2
|
Senior Member |
|
|
Dave
Yes, when jumping 5/9 you should hear click click from fuel pump. The
clicking slows as it fills the float bowl. Follow the wire from the
fuel pump over the top of Onan -- mine has a connector near the
breaker switch -- make sure it is good -- and try checking voltage
there as well -- put multimeter on that end of wire and jump 5/9.
Bad pump is usually just a stuck pump. Cleaning the inside with
carb cleaner frees up the plunger.
Dennis
Sent from my iPhone
On Jul 8, 2011, at 12:59 PM, David <75glenbrook@gmail.com> wrote:
> sorry, laptop sent to quick
>
> so i jumped 5 to 9 i do not here anything.( used (alligator clips
> with 12 gauge between) i volt test it, i get 12.2 across. am i jumping
> right? bad fuel pump?
>
> thanks,
>
> David Paliotta
> 75 Glenbrook
> Tulsa, OK
> http://75glenbrook.googlepages.com/
>
> On Fri, Jul 8, 2011 at 11:50 AM, Dennis Sexton
> <dennisfsexton@aol.com> wrote:
>>
>>
>> Ken, Mike,
>>
>> So jumping 5 and 9 eliminates all board safety functions.
>> Jumping 6 and 9 preserves the LOP (low oil pressure) feature.
>>
>> It would seem that with that knowledge it would allow trouble
>> shooting of the oil pressure switch and associated wiring.
>>
>> If so, nice to know.
>>
>> Thanks,
>>
>> Dennis
>>
>>
>
>
> --
> _______________________________________________
> 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
Dennis S
73 Painted Desert 230
Memphis TN Metro
|
|
|
|
| Re: [GMCnet] onan jumpers [message #133812 is a reply to message #133806] |
Fri, 08 July 2011 13:49 |
Dennis S
Messages: 3046
Registered: November 2005
Karma: 2
|
Senior Member |
|
|
Dave
Just took photos -- headed home to post.
Dennis
Sent from my iPhone
On Jul 8, 2011, at 12:59 PM, David <75glenbrook@gmail.com> wrote:
> sorry, laptop sent to quick
>
> so i jumped 5 to 9 i do not here anything.( used (alligator clips
> with 12 gauge between) i volt test it, i get 12.2 across. am i jumping
> right? bad fuel pump?
>
> thanks,
>
> David Paliotta
> 75 Glenbrook
> Tulsa, OK
> http://75glenbrook.googlepages.com/
>
> On Fri, Jul 8, 2011 at 11:50 AM, Dennis Sexton
> <dennisfsexton@aol.com> wrote:
>>
>>
>> Ken, Mike,
>>
>> So jumping 5 and 9 eliminates all board safety functions.
>> Jumping 6 and 9 preserves the LOP (low oil pressure) feature.
>>
>> It would seem that with that knowledge it would allow trouble
>> shooting of the oil pressure switch and associated wiring.
>>
>> If so, nice to know.
>>
>> Thanks,
>>
>> Dennis
>>
>>
>
>
> --
> _______________________________________________
> 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
Dennis S
73 Painted Desert 230
Memphis TN Metro
|
|
|
|
|
|
| Re: [GMCnet] onan jumpers [message #133814 is a reply to message #133813] |
Fri, 08 July 2011 14:23 |
Dennis S
Messages: 3046
Registered: November 2005
Karma: 2
|
Senior Member |
|
|
The google shorten-ups did not work on the third and fourth photos -- I corrected those and my spelling on the forum. But, the photos can be seen when you open either of the first two -- in thumbnail, click to enlarge.
Dennis
-----Original Message-----
From: Dennis Sexton <dennisfsexton@aol.com>
To: gmclist@temp.gmcnet.org
Sent: Fri, Jul 8, 2011 2:18 pm
Subject: Re: [GMCnet] onan jumpers
Dave
Photo ov contro board -- I am pointing at terminal 5
http://goo.gl/pN7XM
pointing at wir to terminal 9
http://goo.gl/wyWVV
Photo of fuel pump -- connector wire
http://goo.gl/nDU90
Close up of connector
http://goo.gl/SoIu8
As mentioned -- check voltage at this junction wiht jumper in place.
If the pump is still suspect, Hardie has a good album on the pump tear down.
http://www.gmcmhphotos.com/photos/showgallery.php?cat=3636
Dennis
ennis S wrote on Fri, 08 July 2011 13:28
Dave
Yes, when jumping 5/9 you should hear click click from fuel pump. The
clicking slows as it fills the float bowl. Follow the wire from the
fuel pump over the top of Onan -- mine has a connector near the
breaker switch -- make sure it is good -- and try checking voltage
there as well -- put multimeter on that end of wire and jump 5/9.
Bad pump is usually just a stuck pump. Cleaning the inside with
carb cleaner frees up the plunger.
Dennis
Sent from my iPhone
-
ennis S
3 Painted Desert 230
ermantown, TN
______________________________________________
MCnet mailing list
nsubscribe or Change List Options:
ttp://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
Dennis S
73 Painted Desert 230
Memphis TN Metro
|
|
|
|
| Re: [GMCnet] onan jumpers [message #133815 is a reply to message #133814] |
Fri, 08 July 2011 14:29 |
Dave Motorhome
Messages: 175
Registered: July 2007
Karma: 2
|
Senior Member |
|
|
http://www.gmcmhphotos.com/photos/showphoto.php?photo=39741&title=onan-control-board-007&cat=5722
i noticed on mine that the 2 lines that feed the electric to the pump
(yellow and green) mine are both connected directly together. i also
have a 3rd line that just lays up there not attached to anything.
i think i am going to reconnect the two lines to make sure they are
well connected. any idea what the additional line is?
David Paliotta
75 Glenbrook
Tulsa, OK
http://75glenbrook.googlepages.com/
On Fri, Jul 8, 2011 at 2:23 PM, As <dennisfsexton@aol.com> wrote:
>
> The google shorten-ups did not work on the third and fourth photos -- I corrected those and my spelling on the forum. But, the photos can be seen when you open either of the first two -- in thumbnail, click to enlarge.
>
> Dennis
>
>
> -----Original Message-----
> From: Dennis Sexton <dennisfsexton@aol.com>
> To: gmclist@temp.gmcnet.org
> Sent: Fri, Jul 8, 2011 2:18 pm
> Subject: Re: [GMCnet] onan jumpers
>
>
>
> Dave
> Photo ov contro board -- I am pointing at terminal 5
> http://goo.gl/pN7XM
> pointing at wir to terminal 9
> http://goo.gl/wyWVV
> Photo of fuel pump -- connector wire
> http://goo.gl/nDU90
> Close up of connector
> http://goo.gl/SoIu8
> As mentioned -- check voltage at this junction wiht jumper in place.
> If the pump is still suspect, Hardie has a good album on the pump tear down.
> http://www.gmcmhphotos.com/photos/showgallery.php?cat=3636
> Dennis
> ennis S wrote on Fri, 08 July 2011 13:28
> Dave
>
> Yes, when jumping 5/9 you should hear click click from fuel pump. The
> clicking slows as it fills the float bowl. Follow the wire from the
> fuel pump over the top of Onan -- mine has a connector near the
> breaker switch -- make sure it is good -- and try checking voltage
> there as well -- put multimeter on that end of wire and jump 5/9.
>
> Bad pump is usually just a stuck pump. Cleaning the inside with
> carb cleaner frees up the plunger.
>
> Dennis
>
> Sent from my iPhone
>
> -
> ennis S
> 3 Painted Desert 230
> ermantown, TN
> ______________________________________________
> MCnet mailing list
> nsubscribe or Change List Options:
> ttp://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
>
--
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
| Re: [GMCnet] onan jumpers [message #133816 is a reply to message #133815] |
Fri, 08 July 2011 14:33 |
Dennis S
Messages: 3046
Registered: November 2005
Karma: 2
|
Senior Member |
|
|
No,
Those are the wires to the voltage regulator. The fuel pump is below.. and only has one wire.
Dennis
-----Original Message-----
From: David <75glenbrook@gmail.com>
To: gmclist@temp.gmcnet.org
Sent: Fri, Jul 8, 2011 2:29 pm
Subject: Re: [GMCnet] onan jumpers
http://www.gmcmhphotos.com/photos/showphoto.php?photo=39741&title=onan-control-board-007&cat=5722
i noticed on mine that the 2 lines that feed the electric to the pump
yellow and green) mine are both connected directly together. i also
ave a 3rd line that just lays up there not attached to anything.
i think i am going to reconnect the two lines to make sure they are
ell connected. any idea what the additional line is?
David Paliotta
5 Glenbrook
ulsa, OK
ttp://75glenbrook.googlepages.com/
On Fri, Jul 8, 2011 at 2:23 PM, As <dennisfsexton@aol.com> wrote:
The google shorten-ups did not work on the third and fourth photos -- I
orrected those and my spelling on the forum. But, the photos can be seen when
ou open either of the first two -- in thumbnail, click to enlarge.
Dennis
-----Original Message-----
From: Dennis Sexton <dennisfsexton@aol.com>
To: gmclist@temp.gmcnet.org
Sent: Fri, Jul 8, 2011 2:18 pm
Subject: Re: [GMCnet] onan jumpers
Dave
Photo ov contro board -- I am pointing at terminal 5
http://goo.gl/pN7XM
pointing at wir to terminal 9
http://goo.gl/wyWVV
Photo of fuel pump -- connector wire
http://goo.gl/nDU90
Close up of connector
http://goo.gl/SoIu8
As mentioned -- check voltage at this junction wiht jumper in place.
If the pump is still suspect, Hardie has a good album on the pump tear down.
http://www.gmcmhphotos.com/photos/showgallery.php?cat=3636
Dennis
ennis S wrote on Fri, 08 July 2011 13:28
Dave
Yes, when jumping 5/9 you should hear click click from fuel pump. The
clicking slows as it fills the float bowl. Follow the wire from the
fuel pump over the top of Onan -- mine has a connector near the
breaker switch -- make sure it is good -- and try checking voltage
there as well -- put multimeter on that end of wire and jump 5/9.
Bad pump is usually just a stuck pump. Cleaning the inside with
carb cleaner frees up the plunger.
Dennis
Sent from my iPhone
-
ennis S
3 Painted Desert 230
ermantown, TN
______________________________________________
MCnet mailing list
nsubscribe or Change List Options:
ttp://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
--
______________________________________________
MCnet mailing list
nsubscribe or Change List Options:
ttp://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
Dennis S
73 Painted Desert 230
Memphis TN Metro
|
|
|
|
|
|
| Re: [GMCnet] onan jumpers [message #133818 is a reply to message #133816] |
Fri, 08 July 2011 14:41 |
Dave Motorhome
Messages: 175
Registered: July 2007
Karma: 2
|
Senior Member |
|
|
ahh, then i do not seem to be getting power to it. I took some pics i
have to create an acct to upload, give me a sec.
is this as simple as a new cable? or more? i deserve some good luck!! :)
David Paliotta
75 Glenbrook
Tulsa, OK
http://75glenbrook.googlepages.com/
On Fri, Jul 8, 2011 at 2:33 PM, As <dennisfsexton@aol.com> wrote:
>
> No,
>
> Those are the wires to the voltage regulator. The fuel pump is below.. and only has one wire.
>
> Dennis
>
>
>
>
>
>
>
> -----Original Message-----
> From: David <75glenbrook@gmail.com>
> To: gmclist@temp.gmcnet.org
> Sent: Fri, Jul 8, 2011 2:29 pm
> Subject: Re: [GMCnet] onan jumpers
>
>
> http://www.gmcmhphotos.com/photos/showphoto.php?photo=39741&title=onan-control-board-007&cat=5722
> i noticed on mine that the 2 lines that feed the electric to the pump
> yellow and green) mine are both connected directly together. i also
> ave a 3rd line that just lays up there not attached to anything.
> i think i am going to reconnect the two lines to make sure they are
> ell connected. any idea what the additional line is?
> David Paliotta
> 5 Glenbrook
> ulsa, OK
> ttp://75glenbrook.googlepages.com/
> On Fri, Jul 8, 2011 at 2:23 PM, As <dennisfsexton@aol.com> wrote:
>
> The google shorten-ups did not work on the third and fourth photos -- I
> orrected those and my spelling on the forum. But, the photos can be seen when
> ou open either of the first two -- in thumbnail, click to enlarge.
>
> Dennis
>
>
> -----Original Message-----
> From: Dennis Sexton <dennisfsexton@aol.com>
> To: gmclist@temp.gmcnet.org
> Sent: Fri, Jul 8, 2011 2:18 pm
> Subject: Re: [GMCnet] onan jumpers
>
>
>
> Dave
> Photo ov contro board -- I am pointing at terminal 5
> http://goo.gl/pN7XM
> pointing at wir to terminal 9
> http://goo.gl/wyWVV
> Photo of fuel pump -- connector wire
> http://goo.gl/nDU90
> Close up of connector
> http://goo.gl/SoIu8
> As mentioned -- check voltage at this junction wiht jumper in place.
> If the pump is still suspect, Hardie has a good album on the pump tear down.
> http://www.gmcmhphotos.com/photos/showgallery.php?cat=3636
> Dennis
> ennis S wrote on Fri, 08 July 2011 13:28
> Dave
>
> Yes, when jumping 5/9 you should hear click click from fuel pump. The
> clicking slows as it fills the float bowl. Follow the wire from the
> fuel pump over the top of Onan -- mine has a connector near the
> breaker switch -- make sure it is good -- and try checking voltage
> there as well -- put multimeter on that end of wire and jump 5/9.
>
> Bad pump is usually just a stuck pump. Cleaning the inside with
> carb cleaner frees up the plunger.
>
> Dennis
>
> Sent from my iPhone
>
> -
> ennis S
> 3 Painted Desert 230
> ermantown, TN
> ______________________________________________
> MCnet mailing list
> nsubscribe or Change List Options:
> ttp://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
>
>
> --
> ______________________________________________
> MCnet mailing list
> nsubscribe or Change List Options:
> ttp://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
>
--
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
Goto Forum:
Current Time: Thu Feb 06 17:39:18 CST 2025
Total time taken to generate the page: 0.03568 seconds
|
GMCforum
Search
Help
Register
Login
Home
