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Timing chain cover "lip"

Discussion in 'Gen 2 Prius Main Forum' started by Prius92, Nov 27, 2024 at 11:36 AM.

  1. Prius92

    Prius92 Active Member

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    Is this lip or shelf on the inside of the edge of the cover supposed to serve as a "guide" of where to place RTV?

    [​IMG]
     
  2. Mendel Leisk

    Mendel Leisk Book Cover Judge

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    Repair Manual info, if it helps:
     

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  3. mr_guy_mann

    mr_guy_mann Senior Member

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    That trough is there to "collect" the RTV that squeezes out as you tighten the bolts down.

    If you just have two flat surfaces with even edges, the "excess" RTV will form a string that can easily pull off. Then that string will wind up in the oil pickup.

    The trough provides more surface area for the excess RTV to stick to so it can't come loose.

    More of a pain to clean up on a reseal, but less chance of engine problems.

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