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gas filling [message #85530] Fri, 21 May 2010 14:16 Go to next message
jayrabe is currently offline  jayrabe   United States
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When I get gas for my 76 PB, the station nozzle keeps shutting off. It takes a lot of retries to get it full, and then I'm never sure if it's really full, which makes mpg calculations problematic, which is really the problem I want to fix.

Any help?

Thanks

76 PB
Portland, OR

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Re: gas filling [message #85536 is a reply to message #85530] Fri, 21 May 2010 15:19 Go to previous messageGo to next message
GeorgeRud is currently offline  GeorgeRud   United States
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I think there have been a lot of previous posts about the slow filling and gas 'burping' back through the filler. Most seem to suggest that you need to check the venting hoses as there can be a blockage or narrowing that is not allowing the air in the tanks to escape as the gasoline is being introduced.

George Rudawsky
Chicago, IL
75 Palm Beach

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Re: [GMCnet] gas filling [message #85539 is a reply to message #85536] Fri, 21 May 2010 15:46 Go to previous messageGo to next message
Ray Erspamer is currently offline  Ray Erspamer   United States
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Whenever I fill, I have a small piece of wood with steps in it to put in the pump handle, I let it fill VERY SLOW and wash windows, etc., it works out very well. If I try to fill too fast, it's OK until the tanks start to get full and then I get burping and splash back galore.



Ray


Ray & Lisa Erspamer
78 Royale Center Kitchen
TZE368V101144
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/




________________________________
From: George Rudawsky <GeorgeRud@aol.com>
To: gmclist@temp.gmcnet.org
Sent: Fri, May 21, 2010 3:19:37 PM
Subject: Re: [GMCnet] gas filling



I think there have been a lot of previous posts about the slow filling and gas 'burping' back through the filler. Most seem to suggest that you need to check the venting hoses as there can be a blockage or narrowing that is not allowing the air in the tanks to escape as the gasoline is being introduced.
--
George Rudawsky
Chicago, IL
75 Palm Beach
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Ray Erspamer 78 GMC Royale Center Kitchen 403, 3.70 Final Drive Holley Sniper Quadrajet EFI System, Holley Hyperspark Ignition System 414-484-9431

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Re: gas filling [message #85542 is a reply to message #85530] Fri, 21 May 2010 16:22 Go to previous messageGo to next message
idrob is currently offline  idrob   United States
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jayrabe wrote on Fri, 21 May 2010 12:16

When I get gas for my 76 PB, the station nozzle keeps shutting off. It takes a lot of retries to get it full, and then I'm never sure if it's really full, which makes mpg calculations problematic, which is really the problem I want to fix.

76 PB
Portland, OR



As a temporary help, try lowering only the door side of the coach with the air bag system when you fill with gas. That helped on mine when I had it. Real solution is, as pointed out, probably a re-do of the gas tank venting system hoses so they vent properly.

Rob Allen
former owner of '76 x-PB

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Re: [GMCnet] gas filling [message #85543 is a reply to message #85530] Fri, 21 May 2010 16:20 Go to previous messageGo to next message
ljdavick is currently offline  ljdavick   United States
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Jay,

Do you have the same gas nozzles in Oregon that we have in California with the big vapor recovery snorkel? If so, then you might need a sophisticated gas nozzle bushing. Look here:

<http://gmcmotorhome.info/Fuel.html#nozzle>
<http://www.gmcmhphotos.com/photos/showphoto.php?photo=29703&title=gas-tank-filling-aid&cat=500>

Mine is made from some insulating pipe wrap that I had at the house. I use it with every fill-up and it works great. Barring that, you might need to put some attention to your vent lines.

Larry Davick
The Mystery Machine
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy

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Re: [GMCnet] gas filling [message #85544 is a reply to message #85543] Fri, 21 May 2010 16:47 Go to previous messageGo to next message
Neil is currently offline  Neil   United States
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Registered: July 2007
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Jim K has a plastic donut which works perfectly and is inexpensive. See:

http://www.appliedgmc.com/prod.itml/icOid/901

Neil
76 Eleganza now sold
Los Angeles

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Re: [GMCnet] gas filling [message #85548 is a reply to message #85544] Fri, 21 May 2010 17:17 Go to previous messageGo to next message
jayrabe is currently offline  jayrabe   United States
Messages: 509
Registered: June 2009
Location: Portland, OR
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Thanks all. Haven't checked my tank vents, but for $2 I think I'll try the donut.

Thanks again. I knew you guys would have the answer.

:-)

J
76 PB
Portland, OR


> To: gmclist@temp.gmcnet.org
> From: nmartin@hfbllp.com
> Date: Fri, 21 May 2010 16:47:29 -0500
> Subject: Re: [GMCnet] gas filling
>
>
>
> Jim K has a plastic donut which works perfectly and is inexpensive. See:
>
> http://www.appliedgmc.com/prod.itml/icOid/901
> --
> Neil
> 76 Eleganza
> Los Angeles
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

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Re: gas filling [message #85551 is a reply to message #85530] Fri, 21 May 2010 17:43 Go to previous message
fred v is currently offline  fred v   United States
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Registered: April 2006
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you cannot fill with the handle on full. even with good vents it may not work. fill slowly. when it clicks off you can hear the gurgling as the air tries to escape.

Fred V
'77 Royale RB 455
P'cola, Fl

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