Stumped

[fipp]

I installed a new facet fuel pump for the onan. It seems to be working as I can feel it vibrating when cranking however no fuel coming out the line
to the carb. I have a primer switch at the inside control panel that I can push to prime but when seperating the gas line from the fuel pump, no gas.
What am I doing wrong? Thanks!

 

[Carl Stouffer]

Several possibilities:

1. The fuel level is too low in the tank for the tube to get any fuel.

2. There is a hole or crack in the fuel hose between the tank and the pump and it is sucking air.

3. Pump hooked up wrong (electrically or direction of flow

That's all I've got.
--
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles,
Solar battery charging. GMCSJ and GMCMI member

 

[Tom Newell]

Those pumps are great. They don't like lifting fuel up, though. Run it with your finger over the outlet to prime it, and I bet it will work after
doing that.

I just used and old one to pump old gasoline out of my truck's tank and needed to prime it as described to get it started. It then happily pumped out
7.5 gallons without missing a beat.

Good luck.

Tom Newell
San Pedro, California
--
Proud Citizen of
Los Angeles, California
Founded 1781 as
El Pueblo de la Reyna de los Angeles, Alta California

 

[jim kanomata1]

Always use 1/4 " new fuel line.
The fuel pick up is designed to ever empty the fuel tank. This way you will
have few gallon of fuel to drive on. Yes the other tank might be half full
or empty.

On Fri, Jul 12, 2019 at 8:42 PM Tom Newell via Gmclist <

> Those pumps are great. They don't like lifting fuel up, though. Run it
> with your finger over the outlet to prime it, and I bet it will work after
> doing that.
>
> I just used and old one to pump old gasoline out of my truck's tank and
> needed to prime it as described to get it started. It then happily pumped
> out
> 7.5 gallons without missing a beat.
>
> Good luck.
>
> Tom Newell
> San Pedro, California
> --
> Proud Citizen of
> Los Angeles, California
> Founded 1781 as
> El Pueblo de la Reyna de los Angeles, Alta California
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502

 

[jim kanomata1]

Also check the fuel line install by opening and closing the slide.

> Always use 1/4 " new fuel line.
> The fuel pick up is designed to ever empty the fuel tank. This way you
> will have few gallon of fuel to drive on. Yes the other tank might be half
> full or empty.
>
> On Fri, Jul 12, 2019 at 8:42 PM Tom Newell via Gmclist <

>
>> Those pumps are great. They don't like lifting fuel up, though. Run it
>> with your finger over the outlet to prime it, and I bet it will work after
>> doing that.
>>
>> I just used and old one to pump old gasoline out of my truck's tank and
>> needed to prime it as described to get it started. It then happily pumped
>> out
>> 7.5 gallons without missing a beat.
>>
>> Good luck.
>>
>> Tom Newell
>> San Pedro, California
>> --
>> Proud Citizen of
>> Los Angeles, California
>> Founded 1781 as
>> El Pueblo de la Reyna de los Angeles, Alta California
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>
>
> --
> Jim Kanomata
> Applied/GMC, Newark,CA
> jimk
> http://www.appliedgmc.com
> 1-800-752-7502
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502

 

[Matt Colie]

> I installed a new facet fuel pump for the onan. It seems to be working as I can feel it vibrating when cranking however no fuel coming out the
> line to the carb. I have a primer switch at the inside control panel that I can push to prime but when seperating the gas line from the fuel pump,
> no gas. What am I doing wrong? Thanks!

Scott,

As said, probably nothing...
Bendix Facet pumps do not like to do a dry lift at all.

Want a cheap, dirty, effective and nasty tasting test??
Plug any available hose on the pump discharge and suck on it. (If you have the stop valve, that will have to be on.) In a very short time, you should
feel the change of fuel at the pump. If you don't, then work on that problem.
When you do get fuel into the pump, then try running the pump into a can. If there is a lot of air, then get some new 1/4 fuel line to replace the
broken up rubber hose.

I would say welcome, but you came aboard almost two years ago. While you do seem to be working the forum, you have not put in a sigfile. Please do
this so we can be of more help.

To do a signature, go to . If you see a plus next to Preferences, click it. In you will see
"Signature". Please fill in your name (we like to know who we are helping) a short about the coach - including major mods and geographic reference.
The half that work the e-mail side did not get to see the Aledo, IL in the header and you may already have someone in striking range that be of
assistance.

These people love to help. They are really the best reason to be here and own a GMC (TZE). As they remind me of the watermen that I know, I like to
welcome new owners (even if I am a couple of years late) as one would be in that community. So,

May the Good Lord bless this coach and all those that set forth withing her.

Welcome Scott Fippinger

Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit

 

[fipp]

ok Matt, I think I just did that. I am finding no power at the coil I think
--
Scott D. Fippinger
Aledo, Illinois
1976 Royale

 

[Matt Colie]

> ok Matt, I think I just did that. I am finding no power at the coil I think

Scott,

Good start, always do the diagnosis.
¿Question
No power at which coil?
If it is the ignition coil, then you are also not getting power to the fuel shut-off or the fuel pump.
Did you download the Onan books?

Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit