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Your timing belt may last over a 100K but your water pump might not

Discussion in '2nd Gen Tundras (2007-2013)' started by bleach, Feb 16, 2020.

  1. Feb 16, 2020 at 9:47 AM
    #1
    bleach

    bleach [OP] MEME Fiend

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    I changed my timing belt on my 07 with 4.7L over the week end. While I was pulling off the covers, I noticed this pink crusty stuff on the drivers side of the pump by the belt idler. Apparently the water pump had leaked. The leak must have sealed itself after a while or the PO put some stop leak in the coolant. Either way it's a very good idea to change the pump as the job to replace it will involve the timing belt.
    The pump itself looked visually fine but there was a leak at the air hole.
    upload_2020-2-16_9-49-47.jpg

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  2. Feb 16, 2020 at 9:49 AM
    #2
    15whtrd

    15whtrd Mr. Blonde

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    That’s why they always advise to change the water pump at the same time as the timing belt.
     
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  3. Feb 16, 2020 at 9:51 AM
    #3
    bleach

    bleach [OP] MEME Fiend

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    Yeah, a leaky water pump may get you to change the timing belt in time before it breaks.
     
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  4. Feb 16, 2020 at 9:53 AM
    #4
    15whtrd

    15whtrd Mr. Blonde

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    Yeah, I would imagine it be a good idea to change the belt if your water pump went out close to the time that the belt should be replaced. Although a water pump is much easier to do alone then the timing belt.
     
  5. Feb 16, 2020 at 9:55 AM
    #5
    bleach

    bleach [OP] MEME Fiend

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    It looks like you have to pull everything apart as you would the belt on the 4.7

    upload_2020-2-16_9-58-25.jpg
     
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