Wiring diagram for The Pollack fuel valve to the dash board.
- Landseer
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- Holmz
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There are 6 wires, so I think it is ground, left tank/right tank.
The left tank level/right tank level, and level to gauge.
(There is no order ^there^... so give a bell)
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- Landseer
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- Outback Jack
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- Landseer
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- Holmz
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1) The top wire, was infact just a hole in the terminal block.
2)
3)
4)
5)
6)
Pretty sure that the either 4, 5, or 6 was was ~180 ohms.
Which means that the two tank senders go to the pollock, and like mad max thunder dome, "only one leaves" which goes to a single gauge,
It seemed like 2, 3, and 6 were value solenoid candidates.
Maybe I could see a voltage spike when flipping the switch? I'll be at the shed in 2 hours.
Outback Jack wrote: Whilst you at it, perhaps you should install 2nd fuel gauge. That way you will know how much is in both tanks all the time. Not hard to do, running a extra wire up to dash.
Or look at the bank balance... from dry they can gooble down 5 green notes, so if the wallet is low then I just filled up.
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- Landseer
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Green .50 ohms
Purple 10.7 ohms
Purple. 108. Ohms
Red. 184. Ohms
I have seen different interpretations one was. A. Rear tank C. Front tank. D. Red. E Red/ white. To switch. F. Open. Then another. Was. A main tank. B. Fuel gauge. C. Aux tank D and E. To switch. Which is the only common thread. The thing I find strange is that wires go into the plugs and just end there I have 6 wires in and 4 out that’s why the circuit is a bit strange I get that the two reds continue to the switch and there should be one to the gauge but I have 2 gauges does that require a seperate wire from the tank? And 1 for each tank.
Thanks for your help so far. Ps I have 5 wires at pollack then it goes to 6 wires to plug then 4 wires out to dash 2 of them are both red plus red and white
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- Peter_n_Margaret
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Cheers,
Peter
Cheers, Peter.
OKA196 tinyurl.com/OKA196xtMotorhome
Mob.0428171214
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- Holmz
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(2) Second down... is green/white
(3) Green .50 ohms
(4) Purple 10.7 ohms and is the passenger tank level sender
(5) Purple. 108. Ohms (assuming we have this as the gauge???
(6) Red. 184. Ohms and impedance says the driver's side tank sender.
So pollock solnoid is either 2/3, 2/5, or 3/5.
However I am assuming 5 is the gauge...
The pollock may be powered to one side spring loaded to the other...??
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- Landseer
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- Holmz
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It is a rat's nest.
I think if you are running two gauges then you have three wires that can just be two wires to two gauges...
Or
all three go into the pollock as standard inputs, and then I guess the two sending units can go as a pair a mutipole switch and one or the other can end up going to the second gauge.
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- Outback Jack
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- Landseer
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Thanks anyway.
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- Peter and Sandra OKA 374
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374 didn't have two tanks from the factory so this is how I set up the second tank nine years ago.
When running low on one tank NEVER let it get to the stage where the engine starts to run out of fuel as even for the few seconds that it is starving it is wearing out the injection pump as it relies on fuel flow for lubrication and cooling.
I know of quite a few Landcruiser owners over the years that have had to have IP's rebuilt or replaced prematurely because they regularly ran a tank dry before swapping over.
OKA 374 LT Van, converted to camper/motorhome,
400ah Lithiums, 1100w solar, diesel cooking heating and HWS,
Cummins 6BT, Allison 6 speed auto, Nissan transfer.
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- Landseer
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Thanks again
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- Peter and Sandra OKA 374
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The closest it comes is the fuel gauge and then it is only as part of the instruments.
I know there are supplementary diagrams of particular parts of the vehicle and electrics, possibly only given to dealers etc as some have turned up on the forum over the years so maybe someone has one of the fuel system electrics.
It doesn't mention it anywhere in 374's electrical boxes either, maybe because it never had two tanks, I've not seen any spare connectors under the truck either.
OKA 374 LT Van, converted to camper/motorhome,
400ah Lithiums, 1100w solar, diesel cooking heating and HWS,
Cummins 6BT, Allison 6 speed auto, Nissan transfer.
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