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Thread: Hello from England...PLEASE HELP!

  1. 25th May 2009, 01:34 AM #1
    LandUzu Guest

    Hello from England...PLEASE HELP!

    Hi there guys n gals.

    I have a problem with my Landy/Isuzu setup, I have a 2.8TD 4JB1-T lump in my Landy (1986 90 4c) and have recently had problems with some wiring installed by the previous owner.

    My main problem is that i cannot seem to get any voltage from my alternator as it is and am now starting to question whether or not the alternator is shot or the wiring is not right.

    Can anybody, tell me catergorically what colour wire needs to be fed to what in my Landy loom as i have been told by a lad on another forum that he only uses 2wires??!!

    There are 4 in total on my alt. 1x Large white wire that goes to Batt.+ via starter motor.
    1x white wire
    1x white/red
    1x black/yellow

    I am unsure from here what needs to go where and am pulling my hair out as i cant drive her any longer the way she is.

    PPPPLllleaseeee help me as im at my wits end now and i dont like to pay for an autospark to come and patronise me!!!!!
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  2. 25th May 2009, 05:57 AM #2
    Dougal
    Dougal is offline ForumSage
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    Are there any identifying marks on your current alternator? Brand etc?
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  3. 25th May 2009, 09:09 AM #3
    rijidij's Avatar
    rijidij
    rijidij is offline ChatterBox Subscriber
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    When it comes to alternator problems, I find the easiest way is to remove it and take it to an autoelectrician and get them to bench test it. This is easy for them to do, so shouldn't cost much, and at least you will know if the alternator is operating correctly. While your there, simply ask them to tell you how it wires up for when you re-fit it.

    Murray
    '88 County Isuzu 4Bd1 Turbo Intercooled, '96 Defender 130 CC VNT
    '85 Isuzu 120 Trayback, '72 SIIA SWB Diesel Soft Top
    '56 SI Ute Cab

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  4. 25th May 2009, 05:38 PM #4
    Bush65
    Bush65 is offline YarnMaster
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    Those wire colours are not what Land Rover use. They are (from my manual):
    Brown - large +ve to battery
    Black - earth
    Brown/Yellow - to warning lamp in dash
    White/Grey - from W terminal to tachometer

    From my Isuzu 4BD1-T manual, there are:
    'BAT' to battery +ve
    'E' to ground (battery -ve)
    'LG' to warning lamp and relay
    'L' to warning light relay
    'S' from bettery +ve to regulator in alternator

    Note 4JB1-T could be different.
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