Home » Public Forums » GMCnet » [GMCnet] Fuel tank filler nipple
[GMCnet] Fuel tank filler nipple [message #210367] |
Sat, 08 June 2013 16:51 |
Jp Benson
Messages: 649 Registered: October 2011 Location: Fla
Karma: 2
|
Senior Member |
|
|
It strikes me curious that the filler nipple on the GMC fuel tanks is at the midpoint between the top and bottom of the tank. Any leaks in the filler tube or connecting hoses would continue until the tank was over half empty. The only reason I can see for putting the nipple in this location would be that there is no practical position that is higher up on the tank. Are there any other reasons for this setup? Has anyone modified their fuel fill system to change this?
I was wondering, why not use oversize body cushions from JimB and raise the body enough to put the filler tube above the frame. The potential for leaks would be minimized and the filler tube would not be full of gas most of the time.
Thanks,
JP
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
Re: [GMCnet] Fuel tank filler nipple [message #210421 is a reply to message #210389] |
Sat, 08 June 2013 23:35 |
Mr ERFisher
Messages: 7117 Registered: August 2005
Karma: 2
|
Senior Member |
|
|
like this
http://gmcmotorhome.info/tank.html
and
leaks on the side of the tanks, are not a problem, you can replace these
hose connections without removing the tanks, and JimK has the correct hoses
gene
On Sat, Jun 8, 2013 at 5:09 PM, James Hupy <jamesh1296@gmail.com> wrote:
> Jp, the front tank filler spout is located 1/2 way up on the tank to create
> an auxiliary fuel supply. When you first fill the system, both tanks fill.
> If the main/auxiliary switch on the dash is selected on the main tank, fuel
> will be used more or less equally until the supply is 1/2 used. Then you
> will continue to use the main/rear tank until the low fuel warning light
> comes on. At that time you should have ABOUT 12 GALLONS in the auxiliary
> tank. Start hunting for a fuel stop. Your results my vary depending on the
> hills in the area that you have just driven through. Gas slashes back and
> forth through the common filler tube.
> Jim Hupy
> Salem, Or
> 78 Gmc Royale 403
> On Jun 8, 2013 2:51 PM, "Jp Benson" <chocomo99@yahoo.com> wrote:
>
> > It strikes me curious that the filler nipple on the GMC fuel tanks is at
> > the midpoint between the top and bottom of the tank. Any leaks in the
> > filler tube or connecting hoses would continue until the tank was over
> half
> > empty. The only reason I can see for putting the nipple in this location
> > would be that there is no practical position that is higher up on the
> > tank. Are there any other reasons for this setup? Has anyone modified
> > their fuel fill system to change this?
> >
> > I was wondering, why not use oversize body cushions from JimB and raise
> > the body enough to put the filler tube above the frame. The potential
> for
> > leaks would be minimized and the filler tube would not be full of gas
> most
> > of the time.
> >
> >
> > Thanks,
> > JP
> > _______________________________________________
> > 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
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
|
Re: [GMCnet] Fuel tank filler nipple [message #210587 is a reply to message #210426] |
Mon, 10 June 2013 12:57 |
Jp Benson
Messages: 649 Registered: October 2011 Location: Fla
Karma: 2
|
Senior Member |
|
|
Rob,
Thanks to you, Matt, Gene & Jim H. for the help. However much help you're willing to provide is appreciated. Right now I'm just trying to determine feasibility.
I know that Jim B. slices hockey pucks in half somehow so I would only need to convince him to cut them a bit thicker. He'd probably charge me double but hey I'm helping support a vendor. I'm doing a frame off restoration so all those other frame to body gotchas can be dealt with as they are installed. Others have tried this in-situ and had problems with drain tanks and entry steps. I'll try to find out what Manny did. It would be nice to relocate the fill neck closer to the tanks. As long as I don't run to far afoul of DOT, TSA etc etc.
I could get about 1-1/4 inch clearance between the frame cross-members and the body structure. It would be close but should be enough room for the necessary plumbing.
There are higher profile isolators available for the front and rear as well. I won't divulge the part number since I am a dues paying GMCMI member. Sorry, I just can't resist the banter but don't have time for those other threads.
Well the CG & Cd would be higher and the body should be a bit more wobbly but I don't think by an appreciable amount.
Thanks,
JP
>________________________________
> From: Rob Mueller <robmueller@iinet.net.au>
>To: gmclist@temp.gmcnet.org
>Sent: Sunday, June 9, 2013 12:45 AM
>Subject: Re: [GMCnet] Fuel tank filler nipple
>
>
>G'day,
>
>I believe that Manny has modified the fill system as he added an opening door on the driver side.
>
>The body pads from JimB are not high enough to do what you want to do.
>
>There are other "things" that would be affected if you raised the body enough for the fill tubes to clear the frame (crawl under
>your GMC and see just how much you'd have to raise it).
>
>Since I have no intention to modify the fuel fill system I'm not inclined to research this further to see exactly what it would
>take, sorry.
>
>Regards,
>Rob M.
>
>-----Original Message-----
>From: Jp Benson
>
>It strikes me curious that the filler nipple on the GMC fuel tanks is at the midpoint between the top and bottom of the tank. Any
>leaks in the filler tube or connecting hoses would continue until the tank was over half empty. The only reason I can see for
>putting the nipple in this location would be that there is no practical position that is higher up on the tank. Are there any other
>reasons for this setup? Has anyone modified their fuel fill system to change this?
>
>I was wondering, why not use oversize body cushions from JimB and raise the body enough to put the filler tube above the frame. The
>potential for leaks would be minimized and the filler tube would not be full of gas most of the time.
>
>Thanks,
>JP
>
>_______________________________________________
>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] Fuel tank filler nipple [message #210593 is a reply to message #210587] |
Mon, 10 June 2013 15:17 |
GMC_LES
Messages: 569 Registered: October 2009 Location: Montreal
Karma: 0
|
Senior Member |
|
|
JP
Since you are doing a frame off restoration you could simply add a piece of 2" or 2.5" square tubing to the top of the frame rails as a riser. This technique has been used on several coaches, most notably some of the Buskirk stretches. Your biggest obstacle will be the steering shaft length and waste tank connections.
Les Burt
Montreal
On 2013-06-10, at 1:57 PM, Jp Benson <chocomo99@yahoo.com> wrote:
> Rob,
>
> Thanks to you, Matt, Gene & Jim H. for the help. However much help you're willing to provide is appreciated. Right now I'm just trying to determine feasibility.
>
>
> I know that Jim B. slices hockey pucks in half somehow so I would only need to convince him to cut them a bit thicker. He'd probably charge me double but hey I'm helping support a vendor. I'm doing a frame off restoration so all those other frame to body gotchas can be dealt with as they are installed. Others have tried this in-situ and had problems with drain tanks and entry steps. I'll try to find out what Manny did. It would be nice to relocate the fill neck closer to the tanks. As long as I don't run to far afoul of DOT, TSA etc etc.
>
>
> I could get about 1-1/4 inch clearance between the frame cross-members and the body structure. It would be close but should be enough room for the necessary plumbing.
>
> There are higher profile isolators available for the front and rear as well. I won't divulge the part number since I am a dues paying GMCMI member. Sorry, I just can't resist the banter but don't have time for those other threads.
>
>
> Well the CG & Cd would be higher and the body should be a bit more wobbly but I don't think by an appreciable amount.
>
> Thanks,
> JP
>
>
>
>
>> ________________________________
>> From: Rob Mueller <robmueller@iinet.net.au>
>> To: gmclist@temp.gmcnet.org
>> Sent: Sunday, June 9, 2013 12:45 AM
>> Subject: Re: [GMCnet] Fuel tank filler nipple
>>
>>
>> G'day,
>>
>> I believe that Manny has modified the fill system as he added an opening door on the driver side.
>>
>> The body pads from JimB are not high enough to do what you want to do.
>>
>> There are other "things" that would be affected if you raised the body enough for the fill tubes to clear the frame (crawl under
>> your GMC and see just how much you'd have to raise it).
>>
>> Since I have no intention to modify the fuel fill system I'm not inclined to research this further to see exactly what it would
>> take, sorry.
>>
>> Regards,
>> Rob M.
>>
>> -----Original Message-----
>> From: Jp Benson
>>
>> It strikes me curious that the filler nipple on the GMC fuel tanks is at the midpoint between the top and bottom of the tank. Any
>> leaks in the filler tube or connecting hoses would continue until the tank was over half empty. The only reason I can see for
>> putting the nipple in this location would be that there is no practical position that is higher up on the tank. Are there any other
>> reasons for this setup? Has anyone modified their fuel fill system to change this?
>>
>> I was wondering, why not use oversize body cushions from JimB and raise the body enough to put the filler tube above the frame. The
>> potential for leaks would be minimized and the filler tube would not be full of gas most of the time.
>>
>> Thanks,
>> JP
>>
>> _______________________________________________
>> 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
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Les Burt
Montreal
1975 Eleganza 26ft
A work in Progress
|
|
|
Re: [GMCnet] Fuel tank filler nipple [message #210596 is a reply to message #210587] |
Mon, 10 June 2013 15:52 |
powerjon
Messages: 2446 Registered: January 2004
Karma: 5
|
Senior Member |
|
|
Jp,
If you're doing a frame off restoration, why not raise the body 2inchesup higher off the frame. The Buskirk Stretch coaches that were built were done that way. I run MPFI and have the clearance as to not the raised the engine hatch. Use 1 1/2 inch unistrut on the chassis cross members as a spacer and then the 1/2 inch body pad. Provides all sort of clearance for fuel and air lines under the coach. If you're going to go thru the pain to raise it why not go all the way to 2 inches. The ride height would still be set of the frame and not the body.
JR Wright
78 Buskirk Stretch
Michigan
On Jun 10, 2013, at 1:57 PM, Jp Benson <chocomo99@yahoo.com> wrote:
> Rob,
>
> Thanks to you, Matt, Gene & Jim H. for the help. However much help you're willing to provide is appreciated. Right now I'm just trying to determine feasibility.
>
>
> I know that Jim B. slices hockey pucks in half somehow so I would only need to convince him to cut them a bit thicker. He'd probably charge me double but hey I'm helping support a vendor. I'm doing a frame off restoration so all those other frame to body gotchas can be dealt with as they are installed. Others have tried this in-situ and had problems with drain tanks and entry steps. I'll try to find out what Manny did. It would be nice to relocate the fill neck closer to the tanks. As long as I don't run to far afoul of DOT, TSA etc etc.
>
>
> I could get about 1-1/4 inch clearance between the frame cross-members and the body structure. It would be close but should be enough room for the necessary plumbing.
>
> There are higher profile isolators available for the front and rear as well. I won't divulge the part number since I am a dues paying GMCMI member. Sorry, I just can't resist the banter but don't have time for those other threads.
>
>
> Well the CG & Cd would be higher and the body should be a bit more wobbly but I don't think by an appreciable amount.
>
> Thanks,
> JP
>
>
>
>
>> ________________________________
>> From: Rob Mueller <robmueller@iinet.net.au>
>> To: gmclist@temp.gmcnet.org
>> Sent: Sunday, June 9, 2013 12:45 AM
>> Subject: Re: [GMCnet] Fuel tank filler nipple
>>
>>
>> G'day,
>>
>> I believe that Manny has modified the fill system as he added an opening door on the driver side.
>>
>> The body pads from JimB are not high enough to do what you want to do.
>>
>> There are other "things" that would be affected if you raised the body enough for the fill tubes to clear the frame (crawl under
>> your GMC and see just how much you'd have to raise it).
>>
>> Since I have no intention to modify the fuel fill system I'm not inclined to research this further to see exactly what it would
>> take, sorry.
>>
>> Regards,
>> Rob M.
>>
>> -----Original Message-----
>> From: Jp Benson
>>
>> It strikes me curious that the filler nipple on the GMC fuel tanks is at the midpoint between the top and bottom of the tank. Any
>> leaks in the filler tube or connecting hoses would continue until the tank was over half empty. The only reason I can see for
>> putting the nipple in this location would be that there is no practical position that is higher up on the tank. Are there any other
>> reasons for this setup? Has anyone modified their fuel fill system to change this?
>>
>> I was wondering, why not use oversize body cushions from JimB and raise the body enough to put the filler tube above the frame. The
>> potential for leaks would be minimized and the filler tube would not be full of gas most of the time.
>>
>> Thanks,
>> JP
_______________________________________________
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: [GMCnet] Fuel tank filler nipple [message #210688 is a reply to message #210587] |
Tue, 11 June 2013 11:26 |
|
USAussie
Messages: 15912 Registered: July 2007 Location: Sydney, Australia
Karma: 6
|
Senior Member |
|
|
Jp,
I just went out and crawled under Double Trouble and took the following measurements:
a) Bottom of frame rail to bottom of fuel filler hose: 2 1/2"
b) Diameter of fuel filler hose: 1 1/2"
c) Height of frame: 6"
It was kinda hard to make these measurements so I'd say they are not 100% correct but good enough for the following.
Since the frame is 6" tall and the bottom of fuel filler hose is 2 1/2" from the bottom of the frame I reckon you would have to
raise the body 3 1/2" for the bottom of the fuel filler hose to clear the top of the frame.
I may have this all wrong! ;-)
Regards,
Rob M.
-----Original Message-----
From: Jp Benson
Rob,
Thanks to you, Matt, Gene & Jim H. for the help. However much help you're willing to provide is appreciated. Right now I'm just
trying to determine feasibility.
I know that Jim B. slices hockey pucks in half somehow so I would only need to convince him to cut them a bit thicker. He'd
probably charge me double but hey I'm helping support a vendor. I'm doing a frame off restoration so all those other frame to body
gotchas can be dealt with as they are installed. Others have tried this in-situ and had problems with drain tanks and entry steps.
I'll try to find out what Manny did. It would be nice to relocate the fill neck closer to the tanks. As long as I don't run to far
afoul of DOT, TSA etc etc.
I could get about 1-1/4 inch clearance between the frame cross-members and the body structure. It would be close but should be
enough room for the necessary plumbing.
There are higher profile isolators available for the front and rear as well. I won't divulge the part number since I am a dues
paying GMCMI member. Sorry, I just can't resist the banter but don't have time for those other threads.
Well the CG & Cd would be higher and the body should be a bit more wobbly but I don't think by an appreciable amount.
Thanks,
JP
>________________________________
> From: Rob Mueller <robmueller@iinet.net.au>
>To: gmclist@temp.gmcnet.org
>Sent: Sunday, June 9, 2013 12:45 AM
>Subject: Re: [GMCnet] Fuel tank filler nipple
>
>
>G'day,
>
>I believe that Manny has modified the fill system as he added an opening door on the driver side.
>
>The body pads from JimB are not high enough to do what you want to do.
>
>There are other "things" that would be affected if you raised the body enough for the fill tubes to clear the frame (crawl under
>your GMC and see just how much you'd have to raise it).
>
>Since I have no intention to modify the fuel fill system I'm not inclined to research this further to see exactly what it would
>take, sorry.
>
>Regards,
>Rob M.
>
>-----Original Message-----
>From: Jp Benson
>
>It strikes me curious that the filler nipple on the GMC fuel tanks is at the midpoint between the top and bottom of the tank. Any
>leaks in the filler tube or connecting hoses would continue until the tank was over half empty. The only reason I can see for
>putting the nipple in this location would be that there is no practical position that is higher up on the tank. Are there any
other
>reasons for this setup? Has anyone modified their fuel fill system to change this?
>
>I was wondering, why not use oversize body cushions from JimB and raise the body enough to put the filler tube above the frame.
The
>potential for leaks would be minimized and the filler tube would not be full of gas most of the time.
>
>Thanks,
>JP
>
>_______________________________________________
>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
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
|
|
|
Re: [GMCnet] Fuel tank filler nipple [message #210694 is a reply to message #210688] |
Tue, 11 June 2013 12:36 |
Jp Benson
Messages: 649 Registered: October 2011 Location: Fla
Karma: 2
|
Senior Member |
|
|
You're right, there's no getting around the location of the filler nipple. The filler tube however can be moved above the frame if there is enough clearance between the top of the crossmember and the bottom of the body. Top of the crossmember is ~1/2" below top of frame. Add the thickness of the standard body cushion and get a total of 1". A little more space and there's room to work with. Now the original filler tube may be obsolete and the whole fill system (down to the nipple) is open to redesign. Which may or may not be a good idea. In another thread, Dave mentions using 1" copper tubing. The factory design with the fill neck by the driver window and 10' long fill tube leveled halfway up the tanks doesn't seem very "ergonomic" to me. Maybe there are reasons that I don't comprehend but so far nothing too serious has come up.
JP
>________________________________
> From: Rob Mueller <robmueller@iinet.net.au>
>To: gmclist@temp.gmcnet.org
>Sent: Tuesday, June 11, 2013 12:26 PM
>Subject: Re: [GMCnet] Fuel tank filler nipple
>
>
>Jp,
>
>I just went out and crawled under Double Trouble and took the following measurements:
>
>a) Bottom of frame rail to bottom of fuel filler hose: 2 1/2"
>
>b) Diameter of fuel filler hose: 1 1/2"
>
>c) Height of frame: 6"
>
>It was kinda hard to make these measurements so I'd say they are not 100% correct but good enough for the following.
>
>Since the frame is 6" tall and the bottom of fuel filler hose is 2 1/2" from the bottom of the frame I reckon you would have to
>raise the body 3 1/2" for the bottom of the fuel filler hose to clear the top of the frame.
>
>I may have this all wrong! ;-)
>
>Regards,
>Rob M.
>
>-----Original Message-----
>From: Jp Benson
>
>Rob,
>
>Thanks to you, Matt, Gene & Jim H. for the help. However much help you're willing to provide is appreciated. Right now I'm just
>trying to determine feasibility.
>
>I know that Jim B. slices hockey pucks in half somehow so I would only need to convince him to cut them a bit thicker. He'd
>probably charge me double but hey I'm helping support a vendor. I'm doing a frame off restoration so all those other frame to body
>gotchas can be dealt with as they are installed. Others have tried this in-situ and had problems with drain tanks and entry steps.
>I'll try to find out what Manny did. It would be nice to relocate the fill neck closer to the tanks. As long as I don't run to far
>afoul of DOT, TSA etc etc.
>
>I could get about 1-1/4 inch clearance between the frame cross-members and the body structure. It would be close but should be
>enough room for the necessary plumbing.
>
>There are higher profile isolators available for the front and rear as well. I won't divulge the part number since I am a dues
>paying GMCMI member. Sorry, I just can't resist the banter but don't have time for those other threads.
>
>Well the CG & Cd would be higher and the body should be a bit more wobbly but I don't think by an appreciable amount.
>
>Thanks,
>JP
>
>
>
>
>>________________________________
>> From: Rob Mueller <robmueller@iinet.net.au>
>>To: gmclist@temp.gmcnet.org
>>Sent: Sunday, June 9, 2013 12:45 AM
>>Subject: Re: [GMCnet] Fuel tank filler nipple
>>
>>
>>G'day,
>>
>>I believe that Manny has modified the fill system as he added an opening door on the driver side.
>>
>>The body pads from JimB are not high enough to do what you want to do.
>>
>>There are other "things" that would be affected if you raised the body enough for the fill tubes to clear the frame (crawl under
>>your GMC and see just how much you'd have to raise it).
>>
>>Since I have no intention to modify the fuel fill system I'm not inclined to research this further to see exactly what it would
>>take, sorry.
>>
>>Regards,
>>Rob M.
>>
>>-----Original Message-----
>>From: Jp Benson
>>
>>It strikes me curious that the filler nipple on the GMC fuel tanks is at the midpoint between the top and bottom of the tank. Any
>>leaks in the filler tube or connecting hoses would continue until the tank was over half empty. The only reason I can see for
>>putting the nipple in this location would be that there is no practical position that is higher up on the tank. Are there any
>other
>>reasons for this setup? Has anyone modified their fuel fill system to change this?
>>
>>I was wondering, why not use oversize body cushions from JimB and raise the body enough to put the filler tube above the frame.
>The
>>potential for leaks would be minimized and the filler tube would not be full of gas most of the time.
>>
>>Thanks,
>>JP
>>
>>_______________________________________________
>>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
>
>_______________________________________________
>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] Fuel tank filler nipple [message #210767 is a reply to message #210694] |
Wed, 12 June 2013 05:13 |
|
mike miller
Messages: 3576 Registered: February 2004 Location: Hillsboro, Oregon
Karma: 0
|
Senior Member |
|
|
Jp Benson wrote on Tue, 11 June 2013 10:36 | ... Now the original filler tube may be obsolete and the whole fill system (down to the nipple) is open to redesign. Which may or may not be a good idea. In another thread, Dave mentions using 1" copper tubing. The factory design with the fill neck by the driver window and 10' long fill tube leveled halfway up the tanks doesn't seem very "ergonomic" to me. Maybe there are reasons that I don't comprehend but so far nothing too serious has come up.
|
If I understand it correctly, the design and location of the fill "system" was to keep it from protruding into the living space. If it is your coach and you are designing the interior, you could design around any protrusions. Also, it was still in the days of full service gas stations when these where designed. You could sit in your seat and watch the station attendant fill the tank.
A few have moved the fill(s) to other locations, including to the other side of the coach. There isn't any reason that the tanks HAVE to be connected.
Another thought, a spacer on top the frame (effectively a body lift) would allow for a larger (thicker) "custom" fuel tank, maybe even large enough that you only would need one tank. That would simplify the fill, vent and "use" plumbing.
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] Fuel tank filler nipple [message #210777 is a reply to message #210767] |
Wed, 12 June 2013 07:57 |
Jp Benson
Messages: 649 Registered: October 2011 Location: Fla
Karma: 2
|
Senior Member |
|
|
Mike,
Thanks for those observations. Relocation of the filler neck would require invading the living space. This would also require the filler neck to go over the outside frame rail and more clearance would be needed. Since the frame rail is nearly a foot inside the body it gets even more problematic. One positive with the factory fill neck location is protection from side impact. With those facts in mind I will limit my consideration to raising the body enough to move the fill tube above the frame cross-members.
Thanks, JP
>________________________________
> From: Mike Miller <m000035@gmail.com>
>To: gmclist@temp.gmcnet.org
>Sent: Wednesday, June 12, 2013 6:13 AM
>Subject: Re: [GMCnet] Fuel tank filler nipple
>
>
>
>
>Jp Benson wrote on Tue, 11 June 2013 10:36
>> ... Now the original filler tube may be obsolete and the whole fill system (down to the nipple) is open to redesign. Which may or may not be a good idea. In another thread, Dave mentions using 1" copper tubing. The factory design with the fill neck by the driver window and 10' long fill tube leveled halfway up the tanks doesn't seem very "ergonomic" to me. Maybe there are reasons that I don't comprehend but so far nothing too serious has come up.
>
>
>If I understand it correctly, the design and location of the fill "system" was to keep it from protruding into the living space. If it is your coach and you are designing the interior, you could design around any protrusions. :twisted: Also, it was still in the days of full service gas stations when these where designed. You could sit in your seat and watch the station attendant fill the tank.
>
>A few have moved the fill(s) to other locations, including to the other side of the coach. There isn't any reason that the tanks HAVE to be connected.
>
>Another thought, a spacer on top the frame (effectively a body lift) would allow for a larger (thicker) "custom" fuel tank, maybe even large enough that you only would need one tank. That would simplify the fill, vent and "use" plumbing.
>
>
>--
>Mike Miller -- Hillsboro, OR -- on the Black list
>(#1)'73 26' exPainted D. -- (#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
>http://m000035.blogspot.com
>_______________________________________________
>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] Fuel tank filler nipple [message #211024 is a reply to message #210782] |
Thu, 13 June 2013 20:44 |
|
mike miller
Messages: 3576 Registered: February 2004 Location: Hillsboro, Oregon
Karma: 0
|
Senior Member |
|
|
The "living space" in question is aft of the steps.
Robert Mueller wrote on Wed, 12 June 2013 06:48 | Mike,
I'm confused; I'm sitting at the dinette facing forward and can see the "box" around the filler pipe to the left of the driver seat.
Regards,
Rob M.
-----Original Message-----
From: Mike Miller
If I understand it correctly, the design and location of the fill "system" was to keep it from protruding into the living space.
--
Mike
|
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
|
|
|
|
|
|
|
|
|
Goto Forum:
Current Time: Sat Oct 05 07:26:35 CDT 2024
Total time taken to generate the page: 0.02298 seconds
|