Fuel issue

J

john arbuckle

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Mar 30, 2010
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Hoping for a little input in regards to a fuel issue I am having. I have had the GMC for many years but it had been sitting for a few years and I am back at it. I have a 1976 palm beach with a mechanical and inline electric pump. I drained the fuel tanks and put in 10 gallons of new gas. I was not able to get it started as it appears the rear tank fills first and I do not believe the tank selector valve is working. I bypassed the selector valve with the rear tank line directly to the engine. I was able to get it to run for about a half hour and then turned off as usual. Today went back and it started up but then dies. I disconnected the fuel line at the carb and no fuel???? Is there something in the tank that could be sticking that causes it to run and then cut off the fuel supply?? I really appreciate any input/ assistance.

John Arbuckle
1976 Palm Beach
Bellingham Washington.

Sent from my iPhone
 
When did you change the fuel lines?
If you still have the origional, you must replace for the new hoses that
are made for ethanal ,.

On Sun, Dec 10, 2017 at 5:04 PM, John Arbuckle
wrote:

> Hoping for a little input in regards to a fuel issue I am having. I have
> had the GMC for many years but it had been sitting for a few years and I am
> back at it. I have a 1976 palm beach with a mechanical and inline electric
> pump. I drained the fuel tanks and put in 10 gallons of new gas. I was not
> able to get it started as it appears the rear tank fills first and I do not
> believe the tank selector valve is working. I bypassed the selector valve
> with the rear tank line directly to the engine. I was able to get it to run
> for about a half hour and then turned off as usual. Today went back and it
> started up but then dies. I disconnected the fuel line at the carb and no
> fuel???? Is there something in the tank that could be sticking that causes
> it to run and then cut off the fuel supply?? I really appreciate any input/
> assistance.
>
> John Arbuckle
> 1976 Palm Beach
> Bellingham Washington.
>
> Sent from my iPhone
> _______________________________________________
> 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
 
> Hoping for a little input in regards to a fuel issue I am having. I have had the GMC for many years but it had been sitting for a few years and I
> am back at it. I have a 1976 palm beach with a mechanical and inline electric pump. I drained the fuel tanks and put in 10 gallons of new gas. I was
> not able to get it started as it appears the rear tank fills first and I do not believe the tank selector valve is working. I bypassed the selector
> valve with the rear tank line directly to the engine. I was able to get it to run for about a half hour and then turned off as usual. Today went
> back and it started up but then dies. I disconnected the fuel line at the carb and no fuel???? Is there something in the tank that could be sticking
> that causes it to run and then cut off the fuel supply?? I really appreciate any input/ assistance.
>
> John Arbuckle
> 1976 Palm Beach
> Bellingham Washington.

John,

Yes, the OE system fills the rear tank preferentially on the early part of a fill from low fuel.

You drained the tanks, like from the drain plugs?
And then you poured in gallons from gas cans?
You say you ran it for an half of an hour...
Did you just idle it or did you travel at all.
Even if you only idled her, you still burned off 2-1/2 ~ 3 gallons of the 8 that ended up in the tank and and if the coach is sitting still and not
perfectly level, there is no telling how much you could actually get back out.
So, that is why you are out of fuel.

Yes, your tank selector valve is probably bad, many are. Just replace it while you are doing all of the other work that you have to do under there
while you are replacing all the rotted out rubber lines.

I suggest that you also look up two things that are a result of my (unfortunate) experiences.

Do a search on the forum for both:
recommending high T, 29 July 2012 21:06
lifting fuel tanks when alone 27 June 2012 10:06
And once you believe you have managed to decode them, if you have questions, contact me. I love sharing hard won knowledge.

If you have a hard surface to work on and can get the coach high at all, the tanks are just not that hard to manage.

When you get the tanks back up, more fuel should do it, but remember to put save some to wet the carburetor :).

Think about putting in two low pressure pumps instead of the fuel selector. It will take one extra wire, but give you a chance to circumvent a lot of
other issues.

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
 
If I remember correctly I dropped the tanks and replaced about 10 years ago. I have added new line from selector valve forward recently trying to fix the issue. The steel lines have not been changed ever if those need changed as well. It’s odd at times I seem to get fuel out of the line at the carb and then I get nothing. Since I have bypassed the selector valve do I need to disconnect the other tank from the valve and plug the hose or does that even matter??

Thank you,
John Arbuckle

Sent from my iPhone

>
> When did you change the fuel lines?
> If you still have the origional, you must replace for the new hoses that
> are made for ethanal ,.
>
> On Sun, Dec 10, 2017 at 5:04 PM, John Arbuckle

>
>> Hoping for a little input in regards to a fuel issue I am having. I have
>> had the GMC for many years but it had been sitting for a few years and I am
>> back at it. I have a 1976 palm beach with a mechanical and inline electric
>> pump. I drained the fuel tanks and put in 10 gallons of new gas. I was not
>> able to get it started as it appears the rear tank fills first and I do not
>> believe the tank selector valve is working. I bypassed the selector valve
>> with the rear tank line directly to the engine. I was able to get it to run
>> for about a half hour and then turned off as usual. Today went back and it
>> started up but then dies. I disconnected the fuel line at the carb and no
>> fuel???? Is there something in the tank that could be sticking that causes
>> it to run and then cut off the fuel supply?? I really appreciate any input/
>> assistance.
>>
>> John Arbuckle
>> 1976 Palm Beach
>> Bellingham Washington.
>>
>> Sent from my iPhone
>> _______________________________________________
>> 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
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
John,
The new fuel line that can withstand the Ethanal was developed about 6
years ago, so you need to rehose ALL the supply and vent hoses. By piece
mealing the hoses cannot work as we would never re do it later.
Also the selector valve and the fuel pumpwill ned to be replaced as the
rubber in them are deteriated.
Also a aux. fuel pump and a large filter needs to be put in the system and
replace the small filter at the neck of the Carberator.
I can see you do not participate at events like GMC MI convention and other
events where we host siminars to kep people up yo date.

On Sun, Dec 10, 2017 at 7:43 PM, John Arbuckle
wrote:

> If I remember correctly I dropped the tanks and replaced about 10 years
> ago. I have added new line from selector valve forward recently trying to
> fix the issue. The steel lines have not been changed ever if those need
> changed as well. It’s odd at times I seem to get fuel out of the line at
> the carb and then I get nothing. Since I have bypassed the selector valve
> do I need to disconnect the other tank from the valve and plug the hose or
> does that even matter??
>
> Thank you,
> John Arbuckle
>
> Sent from my iPhone
>

> >
> > When did you change the fuel lines?
> > If you still have the origional, you must replace for the new hoses that
> > are made for ethanal ,.
> >
> > On Sun, Dec 10, 2017 at 5:04 PM, John Arbuckle

> >
> >> Hoping for a little input in regards to a fuel issue I am having. I have
> >> had the GMC for many years but it had been sitting for a few years and
> I am
> >> back at it. I have a 1976 palm beach with a mechanical and inline
> electric
> >> pump. I drained the fuel tanks and put in 10 gallons of new gas. I was
> not
> >> able to get it started as it appears the rear tank fills first and I do
> not
> >> believe the tank selector valve is working. I bypassed the selector
> valve
> >> with the rear tank line directly to the engine. I was able to get it to
> run
> >> for about a half hour and then turned off as usual. Today went back and
> it
> >> started up but then dies. I disconnected the fuel line at the carb and
> no
> >> fuel???? Is there something in the tank that could be sticking that
> causes
> >> it to run and then cut off the fuel supply?? I really appreciate any
> input/
> >> assistance.
> >>
> >> John Arbuckle
> >> 1976 Palm Beach
> >> Bellingham Washington.
> >>
> >> Sent from my iPhone
> >> _______________________________________________
> >> 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
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
> _______________________________________________
> 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
 
Thank you for the input I will replace the lines completely. No I have not participated in the GMC arena yet as it has been sitting for sometime now. I am hoping to become more active as I get the GMC up and running. I really appreciate the help and have found the email threads interesting and helpful.

John Arbuckle

Sent from my iPad

>
> John,
> The new fuel line that can withstand the Ethanal was developed about 6
> years ago, so you need to rehose ALL the supply and vent hoses. By piece
> mealing the hoses cannot work as we would never re do it later.
> Also the selector valve and the fuel pumpwill ned to be replaced as the
> rubber in them are deteriated.
> Also a aux. fuel pump and a large filter needs to be put in the system and
> replace the small filter at the neck of the Carberator.
> I can see you do not participate at events like GMC MI convention and other
> events where we host siminars to kep people up yo date.
>
> On Sun, Dec 10, 2017 at 7:43 PM, John Arbuckle

>
>> If I remember correctly I dropped the tanks and replaced about 10 years
>> ago. I have added new line from selector valve forward recently trying to
>> fix the issue. The steel lines have not been changed ever if those need
>> changed as well. It’s odd at times I seem to get fuel out of the line at
>> the carb and then I get nothing. Since I have bypassed the selector valve
>> do I need to disconnect the other tank from the valve and plug the hose or
>> does that even matter??
>>
>> Thank you,
>> John Arbuckle
>>
>> Sent from my iPhone
>>

>>>
>>> When did you change the fuel lines?
>>> If you still have the origional, you must replace for the new hoses that
>>> are made for ethanal ,.
>>>
>>> On Sun, Dec 10, 2017 at 5:04 PM, John Arbuckle

>>>
>>>> Hoping for a little input in regards to a fuel issue I am having. I have
>>>> had the GMC for many years but it had been sitting for a few years and
>> I am
>>>> back at it. I have a 1976 palm beach with a mechanical and inline
>> electric
>>>> pump. I drained the fuel tanks and put in 10 gallons of new gas. I was
>> not
>>>> able to get it started as it appears the rear tank fills first and I do
>> not
>>>> believe the tank selector valve is working. I bypassed the selector
>> valve
>>>> with the rear tank line directly to the engine. I was able to get it to
>> run
>>>> for about a half hour and then turned off as usual. Today went back and
>> it
>>>> started up but then dies. I disconnected the fuel line at the carb and
>> no
>>>> fuel???? Is there something in the tank that could be sticking that
>> causes
>>>> it to run and then cut off the fuel supply?? I really appreciate any
>> input/
>>>> assistance.
>>>>
>>>> John Arbuckle
>>>> 1976 Palm Beach
>>>> Bellingham Washington.
>>>>
>>>> Sent from my iPhone
>>>> _______________________________________________
>>>> 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
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>> _______________________________________________
>> 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
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
John,
You are always welcome to call me to discuss any issues.
Should I not be able to address it properly, I will refer you to a person
that can.

On Sun, Dec 10, 2017 at 8:29 PM, John Arbuckle
wrote:

> Thank you for the input I will replace the lines completely. No I have not
> participated in the GMC arena yet as it has been sitting for sometime now.
> I am hoping to become more active as I get the GMC up and running. I really
> appreciate the help and have found the email threads interesting and
> helpful.
>
> John Arbuckle
>
>
> Sent from my iPad
>

> >
> > John,
> > The new fuel line that can withstand the Ethanal was developed about 6
> > years ago, so you need to rehose ALL the supply and vent hoses. By piece
> > mealing the hoses cannot work as we would never re do it later.
> > Also the selector valve and the fuel pumpwill ned to be replaced as the
> > rubber in them are deteriated.
> > Also a aux. fuel pump and a large filter needs to be put in the system
> and
> > replace the small filter at the neck of the Carberator.
> > I can see you do not participate at events like GMC MI convention and
> other
> > events where we host siminars to kep people up yo date.
> >
> > On Sun, Dec 10, 2017 at 7:43 PM, John Arbuckle

> >
> >> If I remember correctly I dropped the tanks and replaced about 10 years
> >> ago. I have added new line from selector valve forward recently trying
> to
> >> fix the issue. The steel lines have not been changed ever if those need
> >> changed as well. It’s odd at times I seem to get fuel out of the line at
> >> the carb and then I get nothing. Since I have bypassed the selector
> valve
> >> do I need to disconnect the other tank from the valve and plug the hose
> or
> >> does that even matter??
> >>
> >> Thank you,
> >> John Arbuckle
> >>
> >> Sent from my iPhone
> >>
> >>> On Dec 10, 2017, at 5:11 PM, Jim Kanomata

> >>>
> >>> When did you change the fuel lines?
> >>> If you still have the origional, you must replace for the new hoses
> that
> >>> are made for ethanal ,.
> >>>
> >>> On Sun, Dec 10, 2017 at 5:04 PM, John Arbuckle <
> jarbuckle1209>

> >>>
> >>>> Hoping for a little input in regards to a fuel issue I am having. I
> have
> >>>> had the GMC for many years but it had been sitting for a few years and
> >> I am
> >>>> back at it. I have a 1976 palm beach with a mechanical and inline
> >> electric
> >>>> pump. I drained the fuel tanks and put in 10 gallons of new gas. I was
> >> not
> >>>> able to get it started as it appears the rear tank fills first and I
> do
> >> not
> >>>> believe the tank selector valve is working. I bypassed the selector
> >> valve
> >>>> with the rear tank line directly to the engine. I was able to get it
> to
> >> run
> >>>> for about a half hour and then turned off as usual. Today went back
> and
> >> it
> >>>> started up but then dies. I disconnected the fuel line at the carb and
> >> no
> >>>> fuel???? Is there something in the tank that could be sticking that
> >> causes
> >>>> it to run and then cut off the fuel supply?? I really appreciate any
> >> input/
> >>>> assistance.
> >>>>
> >>>> John Arbuckle
> >>>> 1976 Palm Beach
> >>>> Bellingham Washington.
> >>>>
> >>>> Sent from my iPhone
> >>>> _______________________________________________
> >>>> 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
> >>> _______________________________________________
> >>> GMCnet mailing list
> >>> Unsubscribe or Change List Options:
> >>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> >>
> >> _______________________________________________
> >> 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
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
> _______________________________________________
> 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
 
When shopping for rubber fuel line accept only Gates Barricade or equivalent. This has ethanol resistant design. Also, they make types for low
pressure, high pressure and in tank submersible high pressure. You want to tell them it is carburetor equipt.
--
John Lebetski
Woodstock, IL
77 Eleganza II
 
All other brands have the same spec hoses

Sent from my iPhone

>
> When shopping for rubber fuel line accept only Gates Barricade or equivalent. This has ethanol resistant design. Also, they make types for low
> pressure, high pressure and in tank submersible high pressure. You want to tell them it is carburetor equipt.
> --
> John Lebetski
> Woodstock, IL
> 77 Eleganza II
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
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