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Water Pump: Assembly

  1. Fit oil thrower ring and press ball bearing onto pump shaft. Install bearing lock ring.
  2. Press shaft and bearing into bearing housing. Install seal ring.
  3. Install thrower, "O" ring and water pump seal in this order.
  4. Mount pump in engine block, checking that pump gear engages with idler gear. Seat bearing housing using suitable sleeve and drift. Make sure flange of bearing housing butts against engine block.
  5. Install impeller screw and washer. Tighten screw counterclockwise (left-hand thread).
  6. On 1969-72 models, there should be a clearance of 0.010 - 0.020" (0.25 - 0.50 mm) between impeller center screw and cover. Adjust clearance if necessary. Install one or two gaskets as necessary to achieve proper clearance. Gaskets come in three different thicknesses 0.010" (0.25 mm), 0.020" (0.50 mm) and 0.030" (0.76 mm).
  7. Tighten cover screws and reinstall remaining components in reverse order of removal.
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