1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Zero Tolerance

Discussion in '2nd Gen. Tacomas (2005-2015)' started by clincher16, Oct 2, 2009.

  1. Oct 2, 2009 at 1:24 PM
    #1
    clincher16

    clincher16 [OP] New Member

    Joined:
    Sep 13, 2009
    Member:
    #22708
    Messages:
    1
    Gender:
    Male
    First Name:
    dave
    chicago, Il.
    Vehicle:
    2008 sr5 4cyl auto
    Does my 2008 2.7 - 4 cyl. have one of those 0 tolerance engines where you screw up the head if the timing belt breaks ?:confused:
     
  2. Oct 2, 2009 at 1:36 PM
    #2
    NAAC3TACO

    NAAC3TACO Well-Known Member

    Joined:
    Aug 5, 2008
    Member:
    #8350
    Messages:
    4,670
    Gender:
    Male
    Sparks, NV
    Vehicle:
    2014 SR5 DCLB 4x4
    Color matched door handles, Weathertech floor liners, bed mat, Durafit seat covers, tailgate clamp, 2016 TRD Sport 17" wheels with Toyo A30 tires, Toyota exhaust tip, Toyota/Yakima bike rail mount, Toyota wheel locks, Toyota hitch cover, Redline hood struts.
    The 2.7 has a chain. I believe you are talking about an interference engine like Honda. If the belt breaks the valves hit the pistons causing big damage. Honda's newer 4 cylinders have switched to chain drive.
     
  3. Oct 2, 2009 at 1:37 PM
    #3
    rob1

    rob1 Well-Known Member

    Joined:
    Jun 23, 2009
    Member:
    #18799
    Messages:
    1,817
    Gender:
    Male
    First Name:
    Robert
    South Texas
    Vehicle:
    Indigo Blue DblCab 4X4 Long Bed TRD Sport SR5
    Tail gate mod, locking gas cap, locking spare tire, rear spring tsb,Weathertech Digital fit's
    Bump for you....only because you are from my home town....:):D
    BTW...Welcome to TW!!
     
  4. Oct 2, 2009 at 1:38 PM
    #4
    InfidelTaco

    InfidelTaco No better friend,No worse enemy...

    Joined:
    Aug 4, 2009
    Member:
    #20641
    Messages:
    672
    Gender:
    Male
    First Name:
    G
    PNW
    Vehicle:
    Prerunner
    AFE, Fox, Built Rights, Moog, SpiderTrax, Icon progressive, Grabbers
  5. Oct 2, 2009 at 3:36 PM
    #5
    Kyouto42

    Kyouto42 Iron Beard

    Joined:
    Aug 18, 2008
    Member:
    #8614
    Messages:
    9,249
    Gender:
    Male
    First Name:
    Jake
    Ahwatukee, AZ
    Vehicle:
    BSP '10 4x4 TRD Off-Road DC
    See build thread in signature
    If the timing belt/chain breaks on ANY engine while it's running, you're done. If it skips a tooth... maybe not full damage. I'm not sure what the 2.7L would do if it skipped one tooth.
     
  6. Oct 2, 2009 at 3:42 PM
    #6
    NAAC3TACO

    NAAC3TACO Well-Known Member

    Joined:
    Aug 5, 2008
    Member:
    #8350
    Messages:
    4,670
    Gender:
    Male
    Sparks, NV
    Vehicle:
    2014 SR5 DCLB 4x4
    Color matched door handles, Weathertech floor liners, bed mat, Durafit seat covers, tailgate clamp, 2016 TRD Sport 17" wheels with Toyo A30 tires, Toyota exhaust tip, Toyota/Yakima bike rail mount, Toyota wheel locks, Toyota hitch cover, Redline hood struts.
  7. Oct 2, 2009 at 3:54 PM
    #7
    TacoMOnster07

    TacoMOnster07 Well-Known Member

    Joined:
    Mar 24, 2009
    Member:
    #15101
    Messages:
    155
    Gender:
    Male
    Pennsylvania
    Vehicle:
    07 DC 6speed 4x4 BSP Sr5
    BHLM, Grillcraft, Urd SS, Urd TCAI, Urd MAF Calibrator, AeroTurbine Exhaust, TacoTune Single Din, Two 8" Infinity Subs, 12-13000 HID's, Xtreme Bedrack light bar with two KC 4 by 6 lights.
    Toyota does not make any interference engines I believe. If our cam chains break they would not cause any damage whatsoever. We can spin our crankshaft without worrying about pistons at TDC (Top Dead Center) hitting an open valve.
     
  8. Oct 2, 2009 at 3:57 PM
    #8
    TacoMOnster07

    TacoMOnster07 Well-Known Member

    Joined:
    Mar 24, 2009
    Member:
    #15101
    Messages:
    155
    Gender:
    Male
    Pennsylvania
    Vehicle:
    07 DC 6speed 4x4 BSP Sr5
    BHLM, Grillcraft, Urd SS, Urd TCAI, Urd MAF Calibrator, AeroTurbine Exhaust, TacoTune Single Din, Two 8" Infinity Subs, 12-13000 HID's, Xtreme Bedrack light bar with two KC 4 by 6 lights.
    This makes it very easy to work on and change belts on non interferance engines. When I change a timing belt or chain on an interference engine I probably mark 10 more spots on the pully/belt/casing/housing to make sure nothing goes wrong. If there is slack in the wrong spot it can cause a skipped tooth and that's an expensive repair if you crank engine without checking and pistons and valves collide.
     
  9. Oct 2, 2009 at 4:03 PM
    #9
    TacoMOnster07

    TacoMOnster07 Well-Known Member

    Joined:
    Mar 24, 2009
    Member:
    #15101
    Messages:
    155
    Gender:
    Male
    Pennsylvania
    Vehicle:
    07 DC 6speed 4x4 BSP Sr5
    BHLM, Grillcraft, Urd SS, Urd TCAI, Urd MAF Calibrator, AeroTurbine Exhaust, TacoTune Single Din, Two 8" Infinity Subs, 12-13000 HID's, Xtreme Bedrack light bar with two KC 4 by 6 lights.
    I do correct my self that if A chain breaks like we have that might do some damage, not to the pistons or valves but to whatever parts the chain may hit. I don't worry much about our cam chains, I like them more then belts.
     
  10. Oct 2, 2009 at 4:40 PM
    #10
    SC4333

    SC4333 Well-Known Member

    Joined:
    Dec 9, 2008
    Member:
    #11412
    Messages:
    2,190
    Gender:
    Male
    First Name:
    Grant
    San Antonio, TX
    Vehicle:
    2016 TRD Off-Road 4x4 DCSB - Super White
    SOLD!

    That is most definitely NOT true. Only "interference" engines will result in engine damage from a broken T-belt or chain. ;)

    The 2.7L Toyota engine is not an interference engine, so rest assured that your engine will not be damaged in the event of a timing chain failure. T-chains rarely break, although they are known to become derailed or skip a tooth. This is most often caused by broken guides and or tensioners. The chain might last 'forever,' but the guides and tensioner often do not.
     
To Top