| [GMCnet] Re: Gas Tank Vent Mod [message #366983 is a reply to message #366974] |
Mon, 27 September 2021 11:08   |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma:
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Senior Member |
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We have done at least two coaches a month in the lat 20 years and found
that if done right, the filling of the taks are fast and reliable.
I have not seen Matt's mod so I do not understand how that works.
We like to do things in a way other GMC shops can follow.
On Sun, Sep 26, 2021 at 8:22 PM wrote:
> Matt Colie wrote on Sun, 26 September 2021 21:37
>> MikeB wrote on Sun, 26 September 2021 13:59
>>> I’m currently doing a total fuel system update. The PO used the
> existing hard vent line to vent just the main tank and ran a separate
>>> 7/16” hose from Aux tank to a “T” fitting into the small length of
> hose just below fuel filler. I suppose this was to allow for faster fill
>>> ups. I’m thinking of going back to a single line branching to each
> tank like factory. Any find this mod beneficial?
>>>
>>> Thanks
>>
>> Mike,
>>
>> Search for Recommending High T.
>>
>> It is the result of a CFD analysis that I did years ago.
>>
>> Matt
>
> I should have known. My PO has done some pretty good mods. This statement
> from your post clears it up. “ because the rear (main) tank actually
> fills first (with little regard to vehicle trim (ride height front to
> back), it will always flood the vent line if given the opportunity”.
>
> I’ll be replacing the High T.
>
> Thanks
> --
> M Beam
> 75’ Avion
> TBI EBL , 3.70 LSD and other stuff
> Zuki Sidekick,
> Dozier Al
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--
Jim Kanomata ASE
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.gmcrvparts.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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