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04-30-2010, 03:59 PM
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#1 |
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Senior Member
 
Join Date: May 2009
Location: Walla Walla, WA
Posts: 319
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Aux. tanks
I'm thinking about taking the tank out of my cab and running off of one of the two saddle tanks. They aren't hooked up now but I don't think it should be too tricky. Does anyone know if they came with sender units for the gauge or do you just have to guesstimate? I'll have to post a picture later on, but there are two valves on the floor by the handle for adjusting the seat. Anyone know why there are two? Thanks.
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04-30-2010, 04:37 PM
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#2 |
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Registered User
Join Date: Jan 2009
Location: San Antonio, Texas
Posts: 1,374
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Re: Aux. tanks
Ours didn't have any sender units. We had a pair of saddle tanks. We'd usually run off one of the saddle tanks till it ran dry, switch to the other, run that dry, then go to the main tank, and fill 'em all up when that ran low
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1972 C10 LWB, 350/350 Deconstruction began 5/2009, mostly completed restoration, 5/2017 |
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04-30-2010, 11:55 PM
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#3 |
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"Ochre Ogre"
Join Date: Apr 2000
Location: Springfield, MN
Posts: 3,558
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Re: Aux. tanks
the factory aux tank did come with a sending unit. They had a switch on the dash that looked like a normal headlight or wiper blade knob that switched the tank sending wires going to the gauge.
As far as the 2 handles. If they didn't have a 3 way switch for a main and 2 aux tanks it would take 2-2 way switches to run 3 tanks. my old camper truck had a single 3 way switch.
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Bowtie Truck Stop Inc. Mid-West GM Truck Restoration Parts Supplier Your Key Parts, Auto Metal Direct, Dynacorn, and Goodmark dealer. like us @ www.facebook.com/BowtieTruckStop 1971 C-10 Suburban (Ochre) 1971 K-10 Suburban (Ochre) 1972 C-10 Suburban (Ochre) 1972 K-20 Suburban (Yellow- that just aint right!) Springfield, Minnesota 56087 |
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05-01-2010, 12:15 AM
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#4 |
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Gone to greener pastures
Join Date: May 2007
Location: Gateway to the Delta
Posts: 7,354
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Re: Aux. tanks
I installed aftermarket saddle tanks on my '76 Jimmy years & years ago.
On my installation the two valves were: one for the fuel to the carburetor, and one for the return line back to the tank. The aux. tanks had sending units, but the gauge wasn't real accurate because of the shape of the tanks. "E" did not indicate enough, though. Like dfwright, we'd run the aux tanks until we got an engine sputter then do a quick switcheroo. When the main tank ran low, so did the wallet. It was like a 67 gal. fill up. We also carried a couple extra inline fuel filters because we were scraping the bottom of the barrel, so to speak.
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'69 Chevy 1/2 T LWB Stepper: Daily Beater '72 GMC 3/4 T Fleet: Another Daily Beater '72 Plymouth Gran Coupe: ? "Ah women. They make the highs higher and the lows more frequent." Friedrich Nietzsche "Never kick a fresh turd on a hot day." Harry S. Truman GUN CONTROL: Never having to say, "I missed you." Always fire two warning shots into your attacker's chest area before putting a bullet between his eyes. Paraphrased from Louis Awerbuck |
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05-01-2010, 12:40 AM
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#5 |
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20' Daredevil (Ret)
Join Date: May 2003
Location: Jefferson State
Posts: 13,617
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Re: Aux. tanks
My Travel Tanks each have sending units; there is a three-position switch at the bottom of the dash to select the tank you want to go to the gauge.
And a single three-way valve on the floor to select the tank for fuel flow. No return line... El Jay: 67 gallons? Holy crap... I thought mine was bad at just over 50.
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- Mike - 1972 K20 LWB 350/350/205 RIP El Jay Last edited by Stocker; 05-01-2010 at 12:41 AM. |
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05-01-2010, 01:02 AM
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#6 | |
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Gone to greener pastures
Join Date: May 2007
Location: Gateway to the Delta
Posts: 7,354
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Re: Aux. tanks
Quote:
The fuel didn't go out as fast as the bladder filled up, believe me.
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'69 Chevy 1/2 T LWB Stepper: Daily Beater '72 GMC 3/4 T Fleet: Another Daily Beater '72 Plymouth Gran Coupe: ? "Ah women. They make the highs higher and the lows more frequent." Friedrich Nietzsche "Never kick a fresh turd on a hot day." Harry S. Truman GUN CONTROL: Never having to say, "I missed you." Always fire two warning shots into your attacker's chest area before putting a bullet between his eyes. Paraphrased from Louis Awerbuck |
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05-01-2010, 09:08 AM
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#7 |
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Registered User
Join Date: Feb 2000
Location: Center City, MN, USA
Posts: 3,253
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Re: Aux. tanks
When I got my truck it had one saddle tank. The PO ran it until it was dry and switched on the fly. He claimed that way he always knew what was in there; either some or none.
I like to be a bit more in control of things so I purchased a sender and gauge kit from JC Whitney. Now I run my unlocked seat tank first because the saddle door has a lock on it. My control valve is a three-way valve. I have seat, saddle, and one open position. A couple years ago I broke the pot metal handle on the valve and actually found a replacement in one of those hardware stores that has been there a million years and has everything you need. I mounted the gauge knee-knocker style under the ignition. If you are going with only saddle tanks I'd install some indication of how much fuel is in there.
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'70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN |
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