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timing belt question 1996 3.4L 5VZ-FE

Discussion in '3rd Gen 4Runners (1996-2002)' started by whaleguy, Oct 1, 2024.

  1. Oct 1, 2024 at 9:18 PM
    #1
    whaleguy

    whaleguy [OP] New Member

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    I have the new timing belt on at TDC with both cams in alignment. The crank however is off by about 2 teeth. will this ruin my engine?
    If i need to realign everything, is it safe to move the crank independently from the 2 cams? (clockwise only im guessing)

    Any help is greatly appreciated!
    IMG_6238.HEIC.jpg
     
    Last edited: Oct 2, 2024
  2. Oct 2, 2024 at 6:31 AM
    #2
    negusm

    negusm New Member

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    The engine is a non-interferance engine, you won't hurt it. But you do need to get things lined up.
     
    PhantomTweak likes this.
  3. Oct 5, 2024 at 2:35 PM
    #3
    that'smy4runner

    that'smy4runner New Member

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  4. Oct 5, 2024 at 8:46 PM
    #4
    whaleguy

    whaleguy [OP] New Member

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    Thank you changed over last night, running smooth for my 200 mile drive this afternoon.
     
    that'smy4runner likes this.
  5. Oct 6, 2024 at 11:11 PM
    #5
    negusm

    negusm New Member

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    On my first T-Belt replacement, the original belt was off 1 tooth.

    I had driven the car from new and remember a time at probably around 75k miles, the engine had a slightly altered sound to it. I figured the exhaust system was going or something. No CEL or issues.

    After putting on the new T-Belt and getting all the marks correctly aligned , she sound back to what I had remembered. It was a very subtle change.

    If you paid attention, I bet your engine sounded slightly different.

    These engines can slip a tooth now and again.
     
  6. Oct 15, 2024 at 8:54 AM
    #6
    Timmy the Toolman

    Timmy the Toolman New Member

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    Too many mods to list.
    I think this will help some of you. When I filmed this job years ago, I missed the fact that the crankshaft timing gear has a small timing dot on the front face of the gear. It's very easy to miss. If you line up the CR line on the belt with that dot and also line up the cam belt timing lines with their respective timing marks on the camshaft pulleys, you take the guesswork out of getting the timing belt onto the engine properly. But, with that said, you do want to go ahead and do two full revolutions of the crankshaft after getting the belt in place before pulling the pin on the timing belt tensioner. With the belt not fully tensioned by the tensioner, it's normal for the belt to look about a 1/2 tooth off, but once you pull the pin and do a couple more revolutions of the engine, the timing marks for the cams and crankshaft should look dead on at TDC.
     

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