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  1. Join Date
    Dec 2007
    Posts
    1,182
    #1461
    Quote Originally Posted by homhomnova View Post
    Buti pa VVTi kahit magdamag high speed pwede turn off engine agad..
    Even for a gasoline engine, it's always a good idea to have a cooldown period especially during harddriving.

  2. Join Date
    Jan 2013
    Posts
    684
    #1462
    Quote Originally Posted by timo07 View Post
    Even for a gasoline engine, it's always a good idea to have a cooldown period especially during harddriving.
    sir.. parang wala naman akong nabasang ganun sa manual ng Innova VVTi ko.. kahit dun sa mga luma kong kotse wala din akong na encounter na ganyan..

    in fact pagbumabyahe kami ng bicol at isang stop over lang yun.. pag dating sa destination patay agad makina.. so far yung 12 years (98k+ odo) old kong kotse maganda pa naman makina nya at swabe pa takbo..

  3. Join Date
    Dec 2005
    Posts
    38,650
    #1463
    Quote Originally Posted by homhomnova View Post
    sir.. parang wala naman akong nabasang ganun sa manual ng Innova VVTi ko.. kahit dun sa mga luma kong kotse wala din akong na encounter na ganyan..

    in fact pagbumabyahe kami ng bicol at isang stop over lang yun.. pag dating sa destination patay agad makina.. so far yung 12 years (98k+ odo) old kong kotse maganda pa naman makina nya at swabe pa takbo..
    Tama ka riyan bro.

    Cool down,- para lamang sa may mga turbo (whether diesel or gasoline)....

    Kung walang turbo,- puwedeng patay kaagad...

    19.6K:injured:

  4. Join Date
    Jul 2010
    Posts
    230
    #1464
    Sa N.A. Na vehicles if you sonetimes notice naka stop na kayo let say sa bahay, then narining niti umandar yung rad fan. Dont turn the engine off yet. Wait for the fan to shut down itself & wait atleast 3 sec to circulate the cold water inside the block. Then turn the engine off.. Yan lang ang timer ng NA..

  5. Join Date
    Jul 2010
    Posts
    230
    #1465
    Since the toyota fortuner vvti is a belt driven fan.. No need to wait.. Just turn the engine off.

  6. Join Date
    Dec 2007
    Posts
    1,182
    #1466
    Cooldown is not only for the turbo but for the engine as a whole. When you do harddriving, the whole engine experiences elevated temperature, not the turbocharger only. A 30 sec to 2 min cooldown period should be enough. I conducted an experiment by taking temp measurements of the exhaust manifold after a normal drive and after a harddrive (hill climb in montalban). In both cars, my innova d4d and a rio 1.4, both had higher temps immediately after the hardriving. Emphasis is given on a turbocharged engine because of the higher potential for damage on the turbocharger without a proper cooldown. Note, the waiting time for the gates to be opened is already part of the cooldown period. In my case, this usually takes anywhere from 30 secs to 10 mins depending on what time I arrive at home.

  7. Join Date
    Aug 2010
    Posts
    1,394
    #1467
    OT
    how do you know that the turbo is engage when driving car with d4d?
    is the turbo already on when you start the engine? or you need to reach a certain speed?

  8. Join Date
    Oct 2011
    Posts
    26,770
    #1468
    ^

    afaik, in a certain speed yan sir. on what particular speed the turbo would kick-in that i don't know.

  9. Join Date
    Jan 2012
    Posts
    298
    #1469
    Quote Originally Posted by trucker111 View Post
    OT
    how do you know that the turbo is engage when driving car with d4d?
    is the turbo already on when you start the engine? or you need to reach a certain speed?
    AFAIK as soon as exhaust gases reach the turbo, it was already activated. meaning as soon as you start the engine, the turbo is ON.

  10. Join Date
    Oct 2011
    Posts
    26,770
    #1470
    ^

    thanks sir for the clarification. mali pala pagkaintindi ko sa turbo.

List of Toyota D4D Probems (Choking, Hard Starting, etc.)