How to: Short Nose Water Pump

By olei, Jul 23, 2017 | |
  1. olei
    Hi,

    I would like to show how I made myself a short nose water pump. Having issues with water pump to radiator clearance and not being able to move the radiator is the reason why I did this. Doing this made me able to get the water pump 3/4" shorter.

    Parts used;
    FlowKooler water pump, part no. 1700
    Shaft and bearing, part no. WKN2541-1
    Seal, part no. 206U
    I bought the shaft/bearing and seal from Kellogg Automotive.
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    You will need to have access to both mill and lathe. What I did was to shorten the top of the nose, and make the bearing counterbore deeper into the housing.
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    I also made various tools for easy reassembly. I also made a tool to get the seal preload correct; http://kelloggautomotive.com/pdf/Seal Installation Guide.pdf
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    Finished product
    IMG_20170715_191454.jpg

    Last step was to shorten the water pump pulley to the correct depth. I made a new flange and welded it at the correct depth on the pulley.

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    Before modification
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