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Tank Switch

 
  #31  
Old 11-19-2018, 12:13 PM
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Originally Posted by 1978f-250 View Post
I did see post #2. I then showed where the switch was available. You did not.
I said there were some available NOS, but I'm not going to read thru myriad repro parts sellers catalogs to see what NOS parts they might have.
 
  #32  
Old 11-19-2018, 01:47 PM
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Originally Posted by NumberDummy View Post
See post #2. This switch (D5TZ-9A050-A) was also used on 1980/86 F100/350 with single fuel system.
Originally Posted by 1978f-250 View Post
I did see post #2. I then showed where the switch was available. You did not.

P.S. Please excuse my ignorance but why would a truck with a "single fuel system", whatever the hell that is, need a switch to go from one tank to the other?
Originally Posted by NumberDummy View Post
I said there were some available NOS, but I'm not going to read thru myriad repro parts sellers catalogs to see what NOS parts they might have.
That's nice, did someone ask you to? I'm just trying to help the OP.

P.S. Please excuse my ignorance but why would a truck with a "single fuel system", whatever the hell that is, need a switch to go from one tank to the other?

 
  #33  
Old 01-03-2019, 10:16 AM
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Originally Posted by 1978f-250 View Post
I do not have my truck at this home right now so I cannot go out and look at it but here's what the "1979 Ford Truck F-100 Thru F-350 Series Owners Guide" says about the instruments and controls for the dual fuel tank trucks.

If your vehicle is equipped with dual fuel tanks, the level in either tank may be checked by reading the fuel gauge with the fuel selector switch in the desired position. This switch also controls the fuel flow from either tank to the engine. The fuel valve is energized when the fuel selector switch is moved from FRONT to REAR position, allowing fuel flow from the rear tank. On vehicles equipped with dual fuel tanks, the FRONT position supplies fuel to the engine from the midship fuel tank. The fuel valve is protected by the fuse labeled "AUX TANK SOLENOID" on the fuse panel.

Actually I thought the switch read "AUX" and "MAIN" but this manual calls them "FRONT" and "REAR".

Dennis
I thought the dash switch for the tanks said "aux" and "main" but since I have my truck back home finally I see that it's labeled "front" and rear". The rear is still the main tank though.
 
  #34  
Old 01-03-2019, 02:40 PM
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Originally Posted by 1978f-250 View Post
I thought the dash switch for the tanks said "aux" and "main" but since I have my truck back home finally I see that it's labeled "front" and rear". The rear is still the main tank though.
I would think the larger of the two tanks would be considered the main tank if someone wanted to refer to a main tank/aux tank question. Aux tanks are usually smaller than the "main" fuel tank source. IMHO
 

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