Strategy for fuel draining ?

D

dave silva

New member
Oct 2, 2009
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So it looks like i need to remove 35 gallons aged gasoline (7 years)

I can drive it up on ramps, but i can't think of any cheap low profile vessel to put under it.

Maybe access the line and let the electric fuel pump do it?

A kitty pool?

If I knew the thread size on the bung i could fashion a valve.

Other ideas ?

--
Dave & Ellen Silva

1972 Revcon Olds 455, toro drive train. All Stock
 
Pumping out is good, but if it is that old, you need to replace ALL the
rubbers fromtankto engine.
You will need to drop the tanks.
As your lowering the tanks, bleed lot out of the fill of each tank.

On Wed, Sep 30, 2020 at 6:12 PM Jon Roche via Gmclist <

> Hook an electric fuel
> Pump
> To the line and pump them
> Dry. That is best method.
> --
> Jon Roche
> 75 palm beach
> EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
> St. Cloud, MN
> http://lqqkatjon.blogspot.com/
>
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--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502
 
> Pumping out is good, but if it is that old, you need to replace ALL the
> rubbers fromtankto engine.
> You will need to drop the tanks.
> As your lowering the tanks, bleed lot out of the fill of each tank.

That's not going to happen at this time. I'm in a small place and i'm moving in a couple months t oa biger place wit ha better shop. . For now i
just want to drain the tank so i can run the coach without further contaminating the carb.

The lines were probably all new when the coach was parked, why do they need to be changed?

--
Dave & Ellen Silva

1972 Revcon Olds 455, toro drive train. All Stock
 
ok If the fuel is around 6-7 years old and does not smell like varnish..
Check the hose to be the new rating.

On Wed, Sep 30, 2020 at 8:45 PM dave silva via Gmclist <

> > Pumping out is good, but if it is that old, you need to replace ALL the
> > rubbers fromtankto engine.
> > You will need to drop the tanks.
> > As your lowering the tanks, bleed lot out of the fill of each tank.
>
>
> That's not going to happen at this time. I'm in a small place and i'm
> moving in a couple months t oa biger place wit ha better shop. . For now i
> just want to drain the tank so i can run the coach without further
> contaminating the carb.
>
> The lines were probably all new when the coach was parked, why do they
> need to be changed?
>
> --
> Dave & Ellen Silva
>
> 1972 Revcon Olds 455, toro drive train. All Stock
>
>
>
> _______________________________________________
> 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.gmcrvparts.com
1-800-752-7502
 
What JimK says. If the lines are not new barrier hose, they need to be replaced. Otherwise you stand a good chance of settin' the woods on fire,
andthe coach too.

--johnny
--
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
 
Results may vary.

But draining via an electric fuel pump has seemed to empty the tanks almost completely dry.

You can also put gas back in coach after all the known bad gas is in there. The. Hook up an electric pump up in a loop with a fuel filter
cartridge. Run that and change a few fuel filter cartridges out and flush the system that way.

Guessing bounds did fuel
Lines. Hopefully it was stored with tanks full and tanks are
Just dirty and not rusted. And bounds installed
Proper hoses.
--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
 
> That's not going to happen at this time. I'm in a small place and i'm moving in a couple months to a bigger place with a better shop. . For now
> i just want to drain the tank so i can run the coach without further contaminating the carb.

Dave,
If you're not currently using the coach much at all, and you're moving to a better shop in a couple of months where it'll be easier to work, why does
it have to be drained now? You could just use a 5 gallon tank on the front bumper or in front of the passenger seat and run it that way.

Richard
--
'77 Birchaven TZE...777;
'76 Palm Beach with 18,477 verified miles;
‘76 Edgemonte
 
The drain plugs are 1/4" NPT. I pulled my plugs out, screwed in a shut off valve, and drained the gas into an oil drain pan. I mounted an electric
fuel pump and filter-water separator on a board some distance from the coach and powered it with a battery charger. The pump pulled from the drain
pan, through the filter, and into five gallon cans. Had the passenger side jacked up a little to force the gas over to the drain holes. Drained 25
gallons, got the water out of it, and then reversed the process pumping from cans into the fuel filler. Filtered everything twice. Filled up with
fresh gas and the coach no longer misses.
--
Greg Crawford
Knoxville, TN

1977 Royale
403
Rear Bath
American Eagle Wheels
Alex Sirum Quad bags
 
Greg,

As someone that has had is tanks down too many times, I can assure you that pumping the fuel out is the best method. I was able to get both drain
plugs loose, but it did me little good as I ended up wearing several gallons. Later I bought a cheap fuel pump and never regretted it. If, you are
going to take them down and try to handle them, pulling the drain plugs when the tank is about dry is also a good idea as the free surface in those
big flat tanks makes them a real prize to manage.

Matt
--
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
 
Yep Ive drained my tanks twice now, I used a old holly electric pump and there was only a cup or so left.
Tip. have the coach fairly level
pump from each tank

I used a 5 gallon boat tank

Keith
________________________________
From: Gmclist on behalf of Matt Colie via Gmclist
Sent: Thursday, October 1, 2020 7:11 PM
To: gmclist
Cc: Matt Colie
Subject: Re: [GMCnet] Strategy for fuel draining ?

Greg,

As someone that has had is tanks down too many times, I can assure you that pumping the fuel out is the best method. I was able to get both drain
plugs loose, but it did me little good as I ended up wearing several gallons. Later I bought a cheap fuel pump and never regretted it. If, you are
going to take them down and try to handle them, pulling the drain plugs when the tank is about dry is also a good idea as the free surface in those
big flat tanks makes them a real prize to manage.

Matt
--
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit

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If you have the time, an Autauga County Credit Card (siphon hose) will get about two thirds of it out. Then up the ramp and put a washtub under the
bung to get the last of it.

--johnny

--
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
 
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