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Thread: Pajero engine query

  1. #1
    wbk
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    Default Pajero engine query

    AoA everyone.

    I need some help on urgent basis from the experts on this forum regarding our Pajero. I'll straight away jump to the topic..
    We have '94 model 2.8 intercooler exceed. Day before yesterday the water body leaked and was no one was able to notice the leakage. And yesterday my father had to leave the city as one of our relatives died. leaked water body, long trip and a/c in these weather condition resulted the engine to over-heat. My father was unable to check the temperature gauge, so apparently the engine has seized...

    Now, we have two options:
    1. to get the current engine over-hauled (i myself am not in the favour of this because of the mechanics here and the quality of their work)

    2. get the engine replaced (better option in my view but still there's the risk of not getting a good 10/10 engine)

    the original setup is the 2.8 intercooler turbo (diesel) with auto tranny. if we get the engine replaced we'll have three options
    1. the same setup (diesel)
    2. the 2.4 intercooler setup (diesel)
    3. or the petrol v6 version (6g74)

    i wanted to get information regarding the petrol setup, things such as
    1. is it possible, of course it is, but is it feasible?
    2. bolt-on or alterations will be required?
    3. would it mate with the same tranny?
    4. the differentials, would they need to be changed or anything? because i remember reading somewhere that they dont work properly with the petrol setup if your original setup is the 2.4 or 2.8 diesel...
    5. would the current engine components such as the steering setup, braking setup and so on work with the petrol setup?
    6. what would be the fuel consumption of the petrol engine?
    7. what variants are there for the petrol engine and which is suitable for the swap?
    8. everything and anything i should know other than what i gave mentioned.

    i've done some basic research online but i want some first hand knowledge who has opted for this swap.

    thank you in advance!

    regards,
    Waleed.


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    wbk
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    Default

    also i forgot to mention that i'm a complete noob and don't have the sufficient knowledge, hence i would love for the experts to help me out here!
    my father has other commitments at the moment so I've been asked to pitch in as much as i can.

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    Default

    be original, why to go for petrol or 2400cc?

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    wbk
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    Quote Originally Posted by noman8ff View Post
    be original, why to go for petrol or 2400cc?
    well, its basically used in city, and very rarely for long route or some really light off-roading. thats why i was inclined towards a petrol engine, less noise, less maintenance, a bit smoother, better acceleration and so on.

    anyways, the current engine is getting a rebuild. so this one is staying for a while. the swap has been postponed as for now.

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    Default

    @wbk

    Good decision provided the crank/block/head units weren't damaged.
    Best option.....would've been to go for a 'kabli' motor from a half cut after an odometer scrutiny.
    Gasoline swap is a messy affair.....the only engine mating to your tranny 4AW3 is a 6G74 variant but that would still need changed bell housing, fuel pump/tank and differentials.
    6G72 option..... would require, besides all above, 4AW2 tranny and engine/gear mounts/foundation adjustments too.
    4D56 option..... again all of the above less the fuel pump/tank.

    Machining is most critical in diesel rebuilds and regrettably our 'ustads' cut corners to make a full circle.......put you back there where you started from i.e, an oil burning, blowing ,busted motor in less than 15-20kms.
    I'm too in middle of a 4M40 rebuild for a project.....with projected costs, minus the lubes, going well over 150k......out of which 30k being pocketed by the machinist only!
    Do share your total expense!
    MEN DO IT AT DAKAR!!!

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    Well I will be in favor of staying diesel instead of swapping with any patrol motor and 4m40 is a good motor .
    Which city you are based ? As if you find a good machinist than you can easily rebuilt your engine to excellent standards .
    I know few in Pindi and Islamabad .



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    Quote Originally Posted by MITSU_MAN View Post
    @wbk

    Good decision provided the crank/block/head units weren't damaged.
    Best option.....would've been to go for a 'kabli' motor from a half cut after an odometer scrutiny.
    Gasoline swap is a messy affair.....the only engine mating to your tranny 4AW3 is a 6G74 variant but that would still need changed bell housing, fuel pump/tank and differentials.
    6G72 option..... would require, besides all above, 4AW2 tranny and engine/gear mounts/foundation adjustments too.
    4D56 option..... again all of the above less the fuel pump/tank.

    Machining is most critical in diesel rebuilds and regrettably our 'ustads' cut corners to make a full circle.......put you back there where you started from i.e, an oil burning, blowing ,busted motor in less than 15-20kms.
    I'm too in middle of a 4M40 rebuild for a project.....with projected costs, minus the lubes, going well over 150k......out of which 30k being pocketed by the machinist only!
    Do share your total expense!
    Usman Bhai, Going for a performace rebuild or on standard ? In Rwp/Isb not able to find a single mechanic who know how to properly set the timing of 4m40, all are jugari ustad's. Recntly went for a diesel pump service and timing checkup which ended up in disastar and eventually have to replace the pump with kabli one.

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    @nomi_6633

    Rightly put, jugari ustaads!
    Its 'hit and trial' for most of 'em.......and 'crash and burn' for most of us!
    The project is very mortal amigo, nothing fancy!
    MEN DO IT AT DAKAR!!!

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    Quote Originally Posted by nomi_6633 View Post
    Usman Bhai, Going for a performace rebuild or on standard ? In Rwp/Isb not able to find a single mechanic who know how to properly set the timing of 4m40, all are jugari ustad's. Recntly went for a diesel pump service and timing checkup which ended up in disastar and eventually have to replace the pump with kabli one.
    Sir jee contact me at 0344-5512155 for your pajero issue
    https://www.facebook.com/CAR.Fest.Pak

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