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6.9 water pump/pulley help

Discussion in '6.9L IH & 7.3L IDI Diesels' started by ncsumd, Sep 13, 2019 at 6:09 PM.

  1. ncsumd

    ncsumd Registered User

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    Hi. Been fixing a 1987 F250 with my son for him to drive It has the 6.9 IDI. We are replacing the entire cooling system, and almost have it back together. The water pump pulley has a spacer/disk with the 4 bolt holes. I’m ashamed to say that we can’t remember if the spacer goes behind the pulley against the WP hub, or if it goes in front of the pulley towards the fan...? If anyone can help, we would greatly appreciate it.
     
  2. Thewespaul

    Thewespaul Supporting Vendor Supporting Member

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    It goes in front if theres only one, if there are multiple shims then the dirty one goes on the outside and the black shiny ones go on the inside.
     
    420Bullnose and ncsumd like this.
  3. ncsumd

    ncsumd Registered User

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    Thank you! There is only one, and it isn’t really dirty which made me believe it went on the inside. My son removed it originally, and thought it came from the outside but wasn’t exactly sure.
     

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