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Timing belt change

Discussion in '1st Gen Tundras (2000-2006)' started by 1sttime1stgenowner, Jun 2, 2024.

  1. Jun 2, 2024 at 3:09 PM
    #1
    1sttime1stgenowner

    1sttime1stgenowner [OP] New Member

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    Was just trying to take off the crankshaft pull with a puller and in the process it jumped the timing just a little passed the T mark. I still took the pulley off. Should I put the pulley bolt back onto where it should go and get the timing back to where it should be or no?
     
  2. Jun 2, 2024 at 5:42 PM
    #2
    Pr4sno

    Pr4sno New Member

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    Does the belt still have timing marks on it or have they worn off?

    If you can find the marks, align them. Then rotate the crank to TDC and see if the cam pulleys are on their TDC marks. If not, rotate them another revolution or two. If still not aligning, set crank to TDC and set cam pulleys to TDC individually and put the belt back on. Two rotations by hand to check alignment of the belt and pulleys is correct.
     
  3. Jun 2, 2024 at 5:49 PM
    #3
    1sttime1stgenowner

    1sttime1stgenowner [OP] New Member

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    They were off. But I was able to take the pulley off, put the bolt back into place and spin everything to get it back to the correct timing. However now I have new issue. I’m at the step now where I’ve replaced all that I needed to but when putting on the new timing belt, the drivers side cam moved 5 teeth forward and now idk what to do
     
  4. Jun 2, 2024 at 5:55 PM
    #4
    Pr4sno

    Pr4sno New Member

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    If the cam slipped forward and the other Cam and crank remained in place, rotate it back the 5 teeth and set the belt. I like to use a clamp in the belt I'm not working on. Rotating backwards is fine for a short run to set TDC, it shouldn't take a lot of pressure.

    These motors are crazy tough and you didn't bend a valve or anything with some light cam slap.

    But just to confirm, you have marks on your timing belt that you can see? It's really important you are aligning the cams and crank to their TDC resting position and aligning the belt on those timing marks on the belt to the marks on the pulleys. It's the internet, so we are likely saying the same thing in different ways - so just clarifying.
     
  5. Jun 2, 2024 at 5:57 PM
    #5
    1sttime1stgenowner

    1sttime1stgenowner [OP] New Member

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    You are godsend seriously. I’m sitting here thinking I’ll have to do something crazy. But ok will do
     
  6. Jun 2, 2024 at 6:03 PM
    #6
    Pr4sno

    Pr4sno New Member

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    I just added/edited a question on the timing belt marks into my second post - check that out before setting this up!

    And just remember regardless of what the alignment looks like, do two full rotations of the whole motor by turning the crank by hand. Confirm the timing marks on both cam pulleys and the crank pulley are back at TDC marks. If that happens, you are all set and had aligned everything properly.
     
    HBTundra likes this.
  7. Jun 2, 2024 at 8:55 PM
    #7
    shifty`

    shifty` In South Dakota Trouble ain't hard to find

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    @kulldox recently posted the following trick for adjusting timing one tooth at a time without removing the belt. It may help. You may also want to check this thread for more 1st gen tips if you haven’t seen it already. There’s a really good thread in the 1st gen subforum that covers timing makes and how to set them when everything goes squirrelly but I’m on mobile and can’t seem to find it….

    https://www.youtube.com/watch?v=WGZOXrIq2Q8
     
  8. Jun 3, 2024 at 5:35 AM
    #8
    Pr4sno

    Pr4sno New Member

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    Were you able to get the timing back?

    I'm curious as to how your timing jumped if the tensioner and belt are serviceable. If you got it back in time, I'd still consider a timing belt kit if the belt is stretched and/or tensioner is fatigued enough to allow the belt to jump.
     
    87warrior likes this.
  9. Jun 5, 2024 at 2:39 PM
    #9
    Pr4sno

    Pr4sno New Member

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    dbittle likes this.

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