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Thread: Late model Isuzu/Defender combination

  1. 21st April 2019, 10:15 AM #11
    discogovan Guest

    4JJ1 in Discovery 2

    Hey All,

    I just want to touch base and see if anyone here managed to install the Isuzu 4JJ1 engine into a Land Rover. I am looking at doing something similar in my Discovery 2. My TD5 is getting a little tired and needs a rebuild. So I have decided to move away from this and install the Isuzu 4JJ1.
    Does anyone know if there is a Bellhousing for the R380 Manual that will bolt to the 4JJ1? If this is too hard I will look at using the 6 speed manual from the new D-max once I can find a good affordable donor car. The 6 speed manual option I feel would be a bit more work due to connecting the LT230 to the Aisin AWR6B45 6 speed Manual from the Isuzu, New transmission mounts, transfer box location, prop shaft modifications etc.

    I have chosen the 4JJ1 engine as it is a simple truck engine. Lots available in Australia, very affordable replacement engine and will be a good reliable engine for long distance driving. They are also comfortably producing about 400hp at the wheels with modification and tuning at a few diesel performance workshops around Australia.

    Any help would be greatly appreciated.
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  2. 31st March 2020, 01:37 PM #12
    tc_s1's Avatar
    tc_s1
    tc_s1 is offline Master Silver Subscriber
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    Just couldn't resist posting after seeing this video regarding the referenced Isuzu engine - YouTube - Enjoy.
    Scratching my teenage itch now that I'm in my midlife crisis...
    '87 110 County 4BD1+T+LP (Godzilla)
    '88 110 Perentie Cargo 4BD1+T+LP (Thing1)
    '91 110 Perentie Cargo 4BD1+T+LP (Thing2)
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  3. 1st April 2020, 04:53 PM #13
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    Bearman
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    That is wild. I see there are no aircleaners on the turbos - wonder how long they will last?
    Cheers......Brian
    1985 110 V8 County
    1998 110 Perentie GS Cargo 6X6 ARN 202516 (Brutus)
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  4. 1st April 2020, 06:16 PM #14
    Lionelgee
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    4JJ1 into a Series 3 109 Six Cylinder

    Hello All,

    Sorry for the thread hijack Cammo and Mr Landy,

    Is it possible to transplant a 4JJ1 or a Cummins 2.8 into a Series 3 long wheel base which was originally fitted with a six cylinder motor?

    Last night I contacted someone who was selling a 200tdi. I asked whether the motor had been compression tested or whether they had pressure tested the coolant system. The answer was no. I will not mention the asking price - lets just say that it was not valued in the hundreds. Plus some parts for the 200tdi are now getting associated with ""unobtainium".

    Also, the advancement to a 300tdi is facing issues with obtaining reliable and serviceable replacement heads.

    Would the more modern alternative of a 4JJ1 fit into a former six cylinder long wheel base Series 3?

    Kind regards
    Lionel
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  5. 1st April 2020, 08:20 PM #15
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    cjc_td5
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    From my recent research into the same scenerio...

    A 4JJ1 has an engine ECU so you'd have to make it run stand alone. Then how to deal with instruments etc. An alternate would be a 4JH1 which is 8 valve vs 16 valve. It is commonish to install mechanical injector pump & injectors from a 4JB1 to a 4JH1 to delete the ECU.

    One on line has installed the mech pump into a 4JJ1 which would be the ducks guts. 3.0l TD, mech injection, 16 valve, intercooled, VNT!
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