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Old 12-15-2009, 11:15 PM   #3
CCCC
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Join Date: Mar 2007
Location: San Pedro River, SE Arizona
Posts: 735
Re: Fuel Tank Valve Question

I've had two and even three tanks on some of these trucks and they all have/had the manually operated valve on the floor to the left of the driver seat, with a handle opposite the four position pointer. It merely swivels in a circle. One opening is the outlet and others for inlet. If you have that type of valve, just run a fuel line from the second tank to one of the unused inlets - the one you will remember as the setting for that tank. Might be a really good idea to make certain that the tank is clear of debris/gunk before you begin using it again.

One thing I have found to be handy is to have a sender on each tank and a switch on the dash which enables one to see the fuel level in each tank - because I do not drive some of these very often and forget the fuel level in the tank that does not have a gauge. Sometimes I just run the un-gauged tank until it is almost empty (first sputter) and then turn the valve handle to the gauged tank.
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CCCC
67 Sting Ray Coupe 327 4sp; 68 K10 Suburban 327 4sp; 69 K20 Lifted 383 4sp; 69 C80 Fire Truck 478 V6 5sp/2sp; 69 C20 Longhorn 327 4sp; 70 C30 Wrecker 350 4sp; 70 C30 Flat Bed 350 4sp; 71 C20 LWB 350 4sp; 72 K5 Blazer 350 4sp; 72 C30 Flat Bed Gooseneck Hauler with sleeper 350/TH400; 72 C20 Longhorn 402 4sp; 52 Mack LTL Supercharged Cummins 5sp x 3sp; 01 Dodge 5.9 HO Cummins 6spd; 02 Safari Trek 2430 8.1 Vortec on Workhorse Chassis; 03 Silverado 2500 HD 4wd Duramax/Allison
Moved but still in the family
70 C20 Custom Camper 350/TH350; 72 K5 Blazer CST Highlander 350/TH350
Recently sent to new homes
72 C30 MoHome 402 4sp; 72 K5 Blazer Conv 350 4sp; 75 GMC 6000 Aerial 350 w Allison; 72 GMC 3500 Utility 350 4sp; 70 GMC 3500, 350 4sp
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