H2O pump issue

Discussion in 'Parts Interchange' started by doncraft, May 17, 2011.

  1. doncraft

    doncraft Member

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    OK I'm having trouble getting my feeble mind around this water pump issue.
    And for those of you who would direct me to the search engine I've already done that and am still confused. Is the issue the timing cover to pump or what. Here is what I have. A 89 HO motor with a carb no FI no power steering no AC just water pump, alt, and crank. I got a crown vic water pump pulley and would like to use the late model timing cover because I'm using an electric fuel pump. Sorry for being long winded but here goes, can I use a late timing cover and crown vic water pump and pulley or do I have to use a early timing cover with early water pump (what years?) and modify the water pump pulley???:hmmm: thanks for your Patience.
    Don
    Picture with crown vic pump and late cover
     

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  2. injectedmav

    injectedmav Member

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    If you want the pump to turn clockwise, you'll have to use a grooved pulley with a CW rotation pump and a timing cover for a CW pump which I think the crown vic setup is in 89. For Counter clockwise rotation you will need the pump, timing cover and smooth pulley from a vehicle that uses this front end accessory drive system like the 86 up Mustang, Mark 7, most 89 up 5.0l trucks, etc. CW is grooved, CCW is smooth and the ports in the water pump and timing covers are matched based on rotation. The pulley in your picture is grooved so I assume you are using that system which means you'll need a clockwise rotation timing cover from a 302 or 5.0l. You might be better off just using the stock Mav timing cover and using a fuel pump block off plate for this water pump arrangement.

    The covers are different due to the rotation of the pump being opposite. Think of it as a hurricane spinning the opposite direction.
     
    Last edited: May 17, 2011
  3. Ryan

    Ryan Ford Addict

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    Use the old timing cover and block off plate as said earlier. Plus it is already drilled for the dipstick tube. The late 5.0 covers don't have a dipstick tube hole in them.
     
  4. danrjohnson83

    danrjohnson83 Member

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    when using a late model timing cover and a front sump oil pan, can you keep the dipstick in the side of the block? or plug it and drill the timing cover?
     
  5. injectedmav

    injectedmav Member

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    in short, you have to drill the late or use the early dipstick hole in the cover for front sump applications


    the dipstick in the side of the block is designed to hit the deepest part of the sump which is in the rear of the double hump or rear sump pan. It probably will hit the bottom of the front sump pan in that location.
     
  6. doncraft

    doncraft Member

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    So I can use the late timing cover as long as I drill for the dip stick(I already have) I was looking at the covers and I don't think they will know the difference. the first pic is timing covers left is w/o manual fuel pump and right is with manual pump and it looks like that is the only difference. The next is of water pumps and it looks like left is reverse and right is standard. Am I seeing this right???:hmmm:
    Thanks again
     

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  7. injectedmav

    injectedmav Member

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    Both of those covers appear to be clockwise rotation. the water pump on the left appears to be clockwise rotation(grooved pulley) and the one on the right appears to be counterclockwise rotation(smooth pulley) when viewed from the pulley side of the pump. Don't forget to match the metal pump cover to the back of the pump before bolting it up to the cover.
     

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