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Thread: project RKR

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    Default project RKR

    HI, GUYS JUST PURCHACED RKR form an auction......working on the project will definiciatly appriciate your suggections in the thread.thanks

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    gr8 project mashallah so u keeping the top soft top or is she getting a hardtop? whts the paint job gona be?
    BUG ME AND I WILL CRASH INTO U!

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    jadoon sahab ko nazar lag gai......


    he was looking really really into the work..


    nice job jadoon......

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    Default

    well done everyone but ALL CHEERS FOR THE
    the guys with black hands tired looks and shabby clothes



    jadun Sb kiss their hands please for us

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    Default

    Quote Originally Posted by shujaa



    well done everyone but ALL CHEERS FOR THE
    the guys with black hands tired looks and shabby clothes



    jadun Sb kiss their hands please for us






    hahahaha

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    Default

    what is final Result of Restoration
    Imran Iqbal

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    Default

    Jadoon Sb,


    Hope you are well and the project is making progress...interested to get latest details ....it was interesting to see that the original engine in the vehicle was a 2F or 3F petrol (looks like 3F) 6 cyl in line petrol.. and from what I gather its being replaced by a 2B. In military jargon, this essentially makes it a RKR to an RMR conversion.


    Without stirring up the diesel vs petrol debate.... which incidently me and my brother have been having for the past many years with several practical experiments having been conducted on our FSJ Cherokee (story for another day .... I took the liberty of pulling together some relevant stats which came out to be quite interesting and I wanted to share (hopefully numbers are legible)..though I am not sure how consistent the data is (the 3B Nm torque figure from Wikipedia seems wrong) and surely I don't feel qualified enough to interpret what exactly anything means..hoping that the engineers will come to our rescue....


    aproject RKR - tn /a


    Also interested to see if anyone on the forum knows if there are differences in the gear ratios on the differentials used on the RKR (petrol) and RMR (diesel) versions. I suspect there would be a difference .... and in any case you may want to give some thought to replacing the differentials at some stage with diesel Prado ones. These are going for around 70K a set and would bring in rear disc brakes and diff locks!!! (the hot topic of the week)!!!
    "If YOU don't believe in what you're doing it'll never work."

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    Default

    In case the image is not showing through, I will try to post comparison numbers and dyno charts below ... Hopefully it works.
    table cellpadding=0" cellspacing=0" width=651"
    colgroup span=1"col span=1" width=64"/colcol span=1" width=90"/colcol span=1" width=171"/colcol span=1" width=326"/col/colgroup
    tbody




    Engine








    Displacement








    Power






    Torque




    2F


    4.2L


    135 hp (100 kW)


    290 N·m (210 ft·lb)




    3F/3F-E


    4.0L


    155 hp (116 kW)


    303 N·m (220 ft·lb)


















    2B


    3.2L


    93 hp (69 kW) at 2200 rpm



    159 ft·lb
    f

    (215 N·m) of torque at 2200 rpm






    3B


    3.4L



    90 hp (67 kW) at 3500 rpm






    160 ft·lb
    f

    (

    285 N·m??

    ) of torque at 2000 rpm.
















    Source : Wikipedia





    /tbody
    /table




    The 3F Dyno Chart - Source : http://forum.ih8mud.com/40-55-series...fferences.html


    project RKR -991447



    The 3B Dyno - Source : www.axtturbo.com


    project RKR -991448
    "If YOU don't believe in what you're doing it'll never work."

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    Quote Originally Posted by SuhaibKiani



    Also interested to see if anyone on the forum knows if there are differences in the gear ratios on the differentials used on the RKR (petrol) and RMR (diesel) versions. I suspect there would be a difference .... and in any case you may want to give some thought to replacing the differentials at some stage with diesel Prado ones. These are going for around 70K a set and would bring in rear disc brakes and diff locks!!! (the hot topic of the week)!!!









    Are you serious?! So, if I took my RKR and swapped the rear diffs with a Prado rear diff, I would get the option of locking rear diffs? I thought the Prado rear differential was smaller than an FJ70 rear differntial. Could be wrong about it, but I could swear I read that somewhere. Anyways, i hope you are right. Do you recommend anyone in the Lahore area for the swap? Purchasing and installation. Would love to try it out.





    RKR
    I will miss her, that RKR. She will always be the one that got away.
    But, life goes on. From RKR to MMC. 4x4 Engaged? Team Unimog, Pakistan

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    does this 2B & 3B sits perfectly in the bay of 2F? without any mods? what about the gear. does it works with both F & B types?

    Moreover what is the estimated price of 2 & 3 B... as my brother has just bought army retired FJ 40 4.2l and wants to swap the engine...

    What if he installs CNG kit in it for daily driving?
    KZ

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    Quote Originally Posted by julyseventysix

    does this 2B & 3B sits perfectly in the bay of 2F? without any mods? what about the gear. does it works with both F & B types? Moreover what is the estimated price of 2 & 3 B... as my brother has just bought army retired FJ 40 4.2l and wants to swap the engine... What if he installs CNG kit in it for daily driving?




    Regarding your CNG question, I have first hand experience. My overall opinion is that for daily driving, unless you own an oil well or something, you have to install CNG. Bear the following in mind:


    1- The weight distribution of your vehicle will be changed significantly enough to effect offroading. You will need to install at least two tanks, and large ones, like 50 kg tanks to get it to be worth switching over to CNG.


    2- Becuase these cars run on a carb and are not EFI, CNG tuning will be difficult. You need to increase timing significantly, advance it. When you do, the performance on Petrol drops. Finding the right setting is going to take you time. These cars, for some reason, behave very differently when there is no CNG installed at all, you will be messing with timing settings every other week.


    3- Having said that, mileage on CNG is going to be horrible also.





    I keep switching from keeping my tanks in the RKR to taking them out, and messing with overall settings all the time. It pisses me off frankly, so 80% of the time, I just drive it on petrol. Also keep in mind that CNG will dry the butterflies of your carb quickly, you will need to reset your carb about 2-3 times a year, DO NOT ATTEMPT THIS WITHOUT HAVING THE RIGHT CARB MECHANIC.





    RKR
    I will miss her, that RKR. She will always be the one that got away.
    But, life goes on. From RKR to MMC. 4x4 Engaged? Team Unimog, Pakistan

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    maashAllah
    (1)Austin of England, a35, 1958, 850cc,,, (2) Mercedes benz , w202, C - 180 ,,, (3) 2003 HONDA CITY,,,, (4) Triumph TRW 500cc, 1952,,,,

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    @RKR:


    I believe the differential swap with ones with diff. locks is doable, provided the gear ratios between the front and rear match. The spacing difference (if any in your case) should be manageable. The cost I am told should be around 60-75K.


    It would be interesting to know what mileage are you getting on your 3F with petrol? As i understand, a 3B would hardly do any better than 6-8 km/l ..... you might be pretty comparable with diesel and hence probably shoudl take the CNG out once and for all....


    I believe that in Pakistan the majority of CNG kits and mechanics are geared towards smaller engines..... and if the kit or the configuration is not proper, you are likely to kill your engine quite rapidly. And I echo RKRs views on CNG above based on my disastrous experiment with CNG on a 2F (which incidentally was some 10 years ago but neither my brother nor the Cherokee has forgiven me as yet!!).


    Having said and done all that, I have seen a number of newer 4x4s on CNG where I think things would hopefully work better ..... up until 150,000 kms when one would probably be sitting on a dubious Rs 150,000 engine overhaul.
    "If YOU don't believe in what you're doing it'll never work."

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    @Julyseventysix: The 2B and 3B are still quite expensive because they are the best donkey engines, used in all Toyota / Jeep "loader" vehicles in the North. I would think a good 2B would still be north of 70K and one could get definately get a decent 1KZ in the same price as a 3B. Also bear in mind that you would have to change the gearbox to match the diesel engine.


    I would recommend that if the 2F is in half decent shape and does anything more than 5km/l, you should run it as is for as long as possible. In case its not, I personally would still look into the cost of an full overhaul (which would definately be less than an 2B engine swap) and knowing that if all works out, I would be able to match most 4x4s both on and off the road I would live with the cost of petrol.
    "If YOU don't believe in what you're doing it'll never work."

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    Thank you RKR & Kiani Sb....

    Will keep it on petrol.. as long as the motor lasts.... later on shall be changed with a diesel one.
    KZ

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    Check this out for your information ......





    Experts.... please rate and guess the price tag











    project RKR -992255



    project RKR -992256



    project RKR -992257



    project RKR -992258



    project RKR -992259
    KZ

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    it would be hrd to restore it
    Under the Coconut tree

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    Read the following very carefully!

    On a 3f, I have never heard of anyone getting over 4km/l in the city. A 2f is marginally better, like 5-6 km/l in the city. If a diesel can give 6-8 km/l then you are halving your operational costs.

    RKR
    I will miss her, that RKR. She will always be the one that got away.
    But, life goes on. From RKR to MMC. 4x4 Engaged? Team Unimog, Pakistan

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    Thanks Rao...

    See what happens...
    KZ

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    @KZ,


    Nice ride, price guess 225k . I hope the camber is aligned & the suspension not that bad.


    As for a conversion, try to keep it as close to stock as possible, so fitting in a BJ's engine (whatever it is called symbolically) would be the best. I believe it is a 4.0l


    A 1KZ without efi will do 5km/l & with an efi will do 6-7kms.
    TLC FJ90 SWB ~ 1KZ-TE ~ 50mm OEM Lift

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    Body seems very clean. What about its stock engine? How many horses are left in it?
    When Nothing else do the Job "ҐЄຊ๓ પฑḭ₥φ౸" has the solution. http://www.facebook.com/team.unimog

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