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Thread: Disco tank into County

  1. #1
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    Disco tank into County

    Has anyone fitted a Disco 1 fuel tank into a County . Looking to convert to EFI.
    Cheers.

  2. #2
    p38arover's Avatar
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    What about a Defender tank instead? Dunno where you are located Chops but Captain Rightfoot has a tank in the give-away Markets section

    P.S. Thread moved as it is neither a Project nor Tutorial (at this time).
    Ron B.
    VK2OTC

    2003 L322 Range Rover Vogue 4.4 V8 Auto
    2007 Yamaha XJR1300
    Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA



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    Its been a project since I bought it , anyway where has it moved to ?
    Would the defender tank be Diesel though, what sort of pressure would it be suppling ?
    Its OK I found it , here !

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    p38arover's Avatar
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    Well, the tank isn't pressurised so the pressure will whatever the petrol fuel pump (you fit) supplies.
    Ron B.
    VK2OTC

    2003 L322 Range Rover Vogue 4.4 V8 Auto
    2007 Yamaha XJR1300
    Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA



    RIP Bucko - Riding on Forever

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    I did this recently for a customer, the fuel tank you need is from a 1986-1989 Range Rover 3.5 EFI. It bolts straight in to a 110 County. The fuel gauge works and all you need is to run the EFI pump wiring forwards to the ECU. I used the tank, fuel lines and pump wiring off the 3.5 RRC I'm wrecking. It just needed slightly longer hoses to connect the pump.

    I used a 1993 RRC 3.9 EFI loom, MAF and inlet manifold and put the ECU next to the battery. The loom needed only a little modification to work.

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    Quote Originally Posted by bee utey View Post
    I did this recently for a customer, the fuel tank you need is from a 1986-1989 Range Rover 3.5 EFI. It bolts straight in to a 110 County.
    Bee utey, do you think thus would also work with an EFI Discovery 1 tank?
    Cheers
    Slunnie


    ~ Discovery II Td5 ~ Discovery 3dr V8 ~ Series IIa 6cyl ute ~ Series II V8 ute ~

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    Quote Originally Posted by Slunnie View Post
    Bee utey, do you think thus would also work with an EFI Discovery 1 tank?
    The plastic fuel tanks used in D1s and 3.9 RRCs have different mountings to the County. You'd have to cut off the existing County chassis mounts and fab new ones. That's why the earlier RRC steel tank is better, it goes straight in without mods. Wiring is easier too as the two steel tanks share the same position for the sender unit.

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    Quote Originally Posted by bee utey View Post
    The plastic fuel tanks used in D1s and 3.9 RRCs have different mountings to the County. You'd have to cut off the existing County chassis mounts and fab new ones. That's why the earlier RRC steel tank is better, it goes straight in without mods. Wiring is easier too as the two steel tanks share the same position for the sender unit.
    Legend, thanks very much for this. Greatly appreciated.
    Cheers
    Slunnie


    ~ Discovery II Td5 ~ Discovery 3dr V8 ~ Series IIa 6cyl ute ~ Series II V8 ute ~

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    bee utey , what mods need to be done to the harness ?
    and does the RR tank have the pump and fuel sender loaded in the top or in the side like the original County ?
    Cheers

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    Quote Originally Posted by chopper View Post
    bee utey , what mods need to be done to the harness ?
    and does the RR tank have the pump and fuel sender loaded in the top or in the side like the original County ?
    Cheers
    I quote meself from just a few posts ago
    Wiring is easier too as the two steel tanks share the same position for the sender unit.
    OK?
    The fuel pump is in the top on its own.

    The wiring harness needs extending at a couple of points to reach components that are not in exactly the same place. I'm sure you'll work it out. I fitted the MAF and air cleaner behind the engine instead of front left. The EFI needs only two connections from its multi plug connector to the existing County loom to run, battery power (plain brown), ignition power (plain white), then to the ignition coil negative (white/black stripe). All other connections apart from earth (black on a ring terminal, to engine block) can be ignored. Then you need to connect the fuel pump (white/purple stripe) and its earth to either the multi plug or straight to the pump relay beside the ECU. Don't try to use a soft dash EFI loom as they are integrated unlike the '91-'93 loom that is basically stand-alone.

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