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Scania 124 470 trouble....

Discussion in 'Trucks [ Eighteen Wheelers ]' started by ah fai, Aug 21, 2012.

Page 1 of 4
  1. Aug 21, 2012 #1
    ah fai

    ah fai Light Load Member

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    Aug 21, 2012
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    Hello everybody, i am from MALAYSIA and new to this forum, my truck get in trouble, hope can get some help....

    2001 years SCANIA 124, 470HP.. poor in engine power, when i press the accelerator padel, the RPM going up very slowly...

    I already overhaul the engine and replace the charge air pressure sensor, fuel pressure sensor and turbo...but still the same. Try to send it to scania dealer and get the unit injector service and diagnos, same result

    thanks..
    :biggrin_2552:
     
    ah fai, Aug 21, 2012
    ah fai, Aug 21, 2012
    #1
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  3. Aug 21, 2012 #2
    Scania man

    Scania man Road Train Member

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    Jul 1, 2011
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    I was never a fan of the 470 or 480 for that matter, Pablo ua or v8 Lenny or 98989 ,all those know those engines. Best of luck!
     
    Scania man, Aug 21, 2012
    Scania man, Aug 21, 2012
    #2
  4. Aug 22, 2012 #3
    dieselroarmt875b

    dieselroarmt875b Medium Load Member

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    Aug 26, 2008
    YOURAPEEIN
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    the injection system used on this scanias is very capricious,you should check all valves ,o- rings,test for air sucking
     
    dieselroarmt875b, Aug 22, 2012
    dieselroarmt875b, Aug 22, 2012
    #3
  5. Aug 22, 2012 #4
    98989

    98989 Road Train Member

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    is there everything ok with turbocompound? as much i know they were not offered at your market maybe your service have no experience with it .....they usually need service at 600 000km maybe it cuts your power
     
    98989, Aug 22, 2012
    98989, Aug 22, 2012
    #4
  7. Aug 22, 2012 #5
    Scania man

    Scania man Road Train Member

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    Jul 1, 2011
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    Turbocompound is why I never bought this truck,
     
    Scania man, Aug 22, 2012
    Scania man, Aug 22, 2012
    #5
  8. Aug 23, 2012 #6
    ah fai

    ah fai Light Load Member

    178
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    Aug 21, 2012
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    hello, everybody ...thanks for your reply..

    Ya, my scania 124, 470 engine with turbocompound, you are right man... the local dealer, they dont even check the turbocompound and i dont think they can take care for that. this type of truck is very less in my country.

    I have no idea for the turbocompound, should i replace it? it is possible with used unit? and how to troubleshoot or service?

    Today i get my truck for fuel pressure test, connect the guage to fuel filter housing and show 250psi at 700rpm.

    thanks,
     
    ah fai, Aug 23, 2012
    ah fai, Aug 23, 2012
    #6
  9. Aug 23, 2012 #7
    98989

    98989 Road Train Member

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    you should think about that before you bought it with different engine than is available on your market...

    repair on turbocompound in europe cost 3000€

    no replace they usually need bearings or sometimes other things but not replace


    engine 470hp is quite strong if working normally it can overperform some 500hp engines

    did you check for fault codes? is there any?

    there is one scania r470 here converted to 420 (in europe we had 420 as euro2 later as euro3 as pde -same as on your market and after as euro3 with hpi injection (same as used on 470) ....also we had 440 with 4nox for austria with turbocompound this was very problematic one
     
    98989, Aug 23, 2012
    98989, Aug 23, 2012
    #7
  10. Aug 23, 2012 #8
    Scania man

    Scania man Road Train Member

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    I've heard some horror stories about turbecompound, the bearing breaking and being sucked into the engine
     
    Scania man, Aug 23, 2012
    Scania man, Aug 23, 2012
    #8
  11. Aug 23, 2012 #9
    Worthken

    Worthken Light Load Member

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    Jun 2, 2012
    Delmas South Africa
    0
    Can anyone explain turbocompound?, I'm not familliar with the term. Just for interrest sake. We have the 470 motors over here. In the begining they had alot of crank issues, but they were sorted out. As far as I know the 470's perform very well with fuel.
     
    Worthken, Aug 23, 2012
    Worthken, Aug 23, 2012
    #9
  12. Aug 23, 2012 #10
    98989

    98989 Road Train Member

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    they are basic dc12 engine with that turbocompound another turbo behind main turbo

    but that second turbo dont have inlet side but only exhaust

    that second turbine use energy of exhaust gasses and transform them in rotational power and put them on flywheel as additional "free" power

    they consist inside of power turbine and on other side gears hydaulic clutch, in our conditions here turbocompound engine get 1L lower fuel consmption than 420 in average , only case when it does not have fuel benefits are when you are empty on highway

    they are quite "slow" you need about one or two gearchanges before it would start to work
     
    98989, Aug 23, 2012
    98989, Aug 23, 2012
    #10
    Worthken and Scania man Thank this.
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