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Could someone define the these terms..

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Xewkija631, Dec 12, 2010.

  1. Dec 12, 2010 at 5:01 PM
    #1
    Xewkija631

    Xewkija631 [OP] Well-Known Member

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    i have been reading around just browsing and what not and people refer to the term of "Breaking in" the engine; what exactly does this mean? when does it actually break in? at what miles? or what ever idfk. :)

    Thanks
     
  2. Dec 12, 2010 at 5:04 PM
    #2
    hookedontronics

    hookedontronics Well-Known Member

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    it means don't beat the piss outa your truck when the odo reads only three digits
     
  3. Dec 12, 2010 at 5:05 PM
    #3
    Dadic 78

    Dadic 78 Well-Known Member

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    When I purchased my truck, I asked the dealer about proper engine break-in (4.0L) and he basically told me to keep the RPM's low-ish for the first 2K. Also not to stay at the same RPM for too long, if you're doing lots of highway driving.

    Hope that helps...
     
  4. Dec 12, 2010 at 5:16 PM
    #4
    Xewkija631

    Xewkija631 [OP] Well-Known Member

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    Though I do not do this, what would happen in such a case?

    Yeah, it does did he tell you why?
     
  5. Dec 12, 2010 at 5:20 PM
    #5
    Jason'sLawnCare

    Jason'sLawnCare Prepared for Bambi

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    So the cylinder and cylinder wall and other parts can become perfect buddys for the rest of their lives. Seriously it's because the parts aren't "perfectly" machined to fit together so break in makes them fit perfectly or close to.
     
  6. Dec 12, 2010 at 5:41 PM
    #6
    KenLyns

    KenLyns Lord of War

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    There is a well-defined breaking-in procedure in the owner's manual, basically what Dadic 78 described, along with a no-towing recommendation for the first 1000 miles.
     
  7. Dec 12, 2010 at 5:57 PM
    #7
    centraltaco

    centraltaco Well-Known Member

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    So as for ragging your engine when it is new. It is metal on metal so take it easy until the pistons have a little time to wear and you know everything is going to work well.

    Second, as far as not driving at the same rpm, the piston rings will rub on the cylinder wall. It is the ring/rings that actually come in contact. If you drive at the same speed it will only wear that high on the cylinder wall. It could possibly cause issues down the road but most probablly not. I say take it easy for a while then flog the hell out of her.
     
  8. Dec 12, 2010 at 6:19 PM
    #8
    ouyin2000

    ouyin2000 Well-Known Member

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    Better safe than sorry.
     
  9. Dec 12, 2010 at 6:22 PM
    #9
    rex99

    rex99 Well-Known Member

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    don't listen to these guys, breaking-in means to take a sledgehammer and "break-in" your engine-- you have to leave a few dings in the engine block, it adds hp-- don't worry about hurting the engine though, it's a toyota!!! it can take it!!!
     
  10. Dec 12, 2010 at 6:30 PM
    #10
    ouyin2000

    ouyin2000 Well-Known Member

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    Same with speed holes, eh?
     
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