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Fuel Tank Interesting Plumbing... [message #314226]

Tue, 07 March 2017 15:08

jjdebarros

Messages: 11
Registered: June 2015
Location: Spokane, WA

Karma:

Junior Member

Hi,

I've had a fuel problem since I bought my '77 Royale where I have a slow leak/drip when filling the tanks FULL.

Since discovering this, I've only been filling the tanks somewhere between 1/2 and 3/4 full with no leaks.

I've dropped the tanks to try and locate the problem, and replace the fuel lines.

In doing so, I discovered a routing / plumbing that looks 'unique'...

Any reason to maintain this, or should I redo it back to 'normal'?

The first item is the backflow valve that is between the front and back tank.

http://www.gmcmhphotos.com/photos/data/7026/medium/File_000.jpg

The second item is the plumbing for the Onan (which is a 6500 Commercial GenSet).
The back tank is plugged on where the Onan should draw from.

http://www.gmcmhphotos.com/photos/data/7026/medium/File_003.jpg

And the rear fuel line has a 'T' going to the Onan. Where it looks like I could drain my tanks dry.

http://www.gmcmhphotos.com/photos/data/7026/medium/File_008.jpg

Should I remove the backflow and replace with a piece of rubber tubing and replumb the Onan to the tank tap?

Thanks!

'77 Side Bath Royale Spokane, WA

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[Message index]

		Fuel Tank Interesting Plumbing... By: jjdebarros on Tue, 07 March 2017 15:08
		Re: [GMCnet] Fuel Tank Interesting Plumbing... By: Keith V on Tue, 07 March 2017 15:14
		Re: [GMCnet] Fuel Tank Interesting Plumbing... By: James Hupy on Wed, 08 March 2017 12:35
		Re: [GMCnet] Fuel Tank Interesting Plumbing... By: A Hamilto on Wed, 08 March 2017 13:14
		Re: Fuel Tank Interesting Plumbing... By: 77Royale on Tue, 07 March 2017 15:59
		Re: [GMCnet] Fuel Tank Interesting Plumbing... By: Ken Henderson on Tue, 07 March 2017 17:09
		Re: Fuel Tank Interesting Plumbing... By: jhbridges on Tue, 07 March 2017 17:34
		Re: [GMCnet] Fuel Tank Interesting Plumbing... By: jimk on Tue, 07 March 2017 18:35
		Re: [GMCnet] Fuel Tank Interesting Plumbing... By: Hal StClair on Tue, 07 March 2017 19:09
		Re: [GMCnet] Fuel Tank Interesting Plumbing... By: Matt Colie on Wed, 08 March 2017 08:21
		Re: Fuel Tank Interesting Plumbing... By: 77Royale on Wed, 08 March 2017 07:48
		Re: Fuel Tank Interesting Plumbing... By: JohnL455 on Wed, 08 March 2017 09:04
		Re: Fuel Tank Interesting Plumbing... By: jjdebarros on Wed, 08 March 2017 11:52
		Re: [GMCnet] Fuel Tank Interesting Plumbing... By: James Hupy on Wed, 08 March 2017 11:57
		Re: [GMCnet] Fuel Tank Interesting Plumbing... By: A Hamilto on Wed, 08 March 2017 12:17

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