| [GMCnet] Tid Bit. Draining your gas tanks for storage, or service [message #355717] |
Mon, 15 June 2020 12:18  |
BobDunahugh
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
Karma: 11
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Senior Member |
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Drain plugs get hard to pull out if you don't know some tricks. And sloppy. I have a drain port in the gas line that goes from the tanks, to the engine. Makes no difference what, or where your pumps are. I put a tee in the rubber hose, Then a very small gas valve. If you have your pumps at the rear like I do. I have a manual switch ( SPDT). That's close to the port. ( Also, Handy to test your pump flow/pressure ). To drain the tanks. I just put a hose on the gas valve. Open the valve. Then turn the pumps on. One at a time to fill your gas cans.
If you don't have electric fuel pumps. Get an electric gas pump, SPST switch, hose, 2 conductor wire, and 2 alligator clips to connect the wires to your 12V battery. ( Check polarity).
I Also have these same setups on the 4 COPO Yenkos. And on all our cars that are in our (too many ) restored convertible collection. I keep everything. Including the GMC. In clement controlled buildings. Year around at 70 degrees. So spilling gas IS NOT an option. This setup is a must have for the cars that are in that collection.
Bob Dunahugh
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| Re: [GMCnet] Tid Bit. Draining your gas tanks for storage, or service [message #355718 is a reply to message #355717] |
Mon, 15 June 2020 13:41  |
Emery Stora
Messages: 959
Registered: January 2011
Karma: 4
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Some people have attempted to use a hex wrench to take out the plugs and stripped them.
When this happened to me I used a very small pipe wrench on the two or three threads of the plug that were exposed and I was able to turn out the plug.
Emery Stora
> On Jun 15, 2020, at 11:18 AM, Bob Dunahugh via Gmclist wrote:
>
> Drain plugs get hard to pull out if you don't know some tricks. And sloppy. I have a drain port in the gas line that goes from the tanks, to the engine. Makes no difference what, or where your pumps are. I put a tee in the rubber hose, Then a very small gas valve. If you have your pumps at the rear like I do. I have a manual switch ( SPDT). That's close to the port. ( Also, Handy to test your pump flow/pressure ). To drain the tanks. I just put a hose on the gas valve. Open the valve. Then turn the pumps on. One at a time to fill your gas cans.
> If you don't have electric fuel pumps. Get an electric gas pump, SPST switch, hose, 2 conductor wire, and 2 alligator clips to connect the wires to your 12V battery. ( Check polarity).
> I Also have these same setups on the 4 COPO Yenkos. And on all our cars that are in our (too many ) restored convertible collection. I keep everything. Including the GMC. In clement controlled buildings. Year around at 70 degrees. So spilling gas IS NOT an option. This setup is a must have for the cars that are in that collection.
> Bob Dunahugh
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| Re: [GMCnet] Tid Bit. Draining your gas tanks for storage, or service [message #355720 is a reply to message #355717] |
Mon, 15 June 2020 15:38 |
MikeB
Messages: 133
Registered: December 2018
Location: South Bama
Karma: 1
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Senior Member |
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Bob
Thanks for the tip. I have full tanks of gas that’s going bad and didn’t want to try and dump the tanks via drain plugs because of the mess. I was thinking of pulling a line from the TBI and running a line from it to gas cans and using the electric (in tank) pumps to drain. Where about is your gas valve located?
Thanks
M Beam
75’ Avion
TBI EBL , 3.70 LSD and other stuff
Zuki Sidekick,
Dozier Al
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| Re: [GMCnet] Tid Bit. Draining your gas tanks for storage, or service [message #355724 is a reply to message #355717] |
Mon, 15 June 2020 18:21 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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An aside - Bob, if it matters (it would to us) Knocking that 70 down to 60 or even 55 when you aren't in there - or if you are - will save a bunch of money in heating costs without hurting the equipment.
--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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