3116 and 3126 Truck Engines Water Pump – Assemble

Assembly Procedure

Illustration 1 g00614283

1.Install the shaft and the bearing into pulley (3) with a press. Install the shaft until the shaft is flush with the end of pulley (3) .

2.Press the shaft, the bearing, and pulley (3) as a unit into the water pump housing. The distance between the front of pulley (3) and the machined surface of the water pump housing must be 103.8 ± 0.3 mm (4.09 ± 0.01 inch).
Note: For information on the reusability of pulley (3), refer to Guideline For Reusable Parts And Salvage Operations, SEBF8046, “Cast Iron and Steel Pulleys”.

Illustration 2 g01004707

3.Install seal (5) in the water pump housing with Tooling (C) .

Illustration 3 g00614288

4.Install impeller (4) on the shaft of the water pump with a press. Install the impeller until the distance between the impeller and the machined surface of the water pump is 0.75 ± 0.25 mm (0.030 ± 0.010 inch).

Illustration 4 g00614231

5.Install a new gasket between the rear cover of the water pump and the water pump housing. Position the gasket and the cover on the water pump housing. Install bolts (2) and the washers.

6.Install new O-ring seals (1) in the rear cover.
End By: Install the water pump. Refer to Disassembly and Assembly, “Water Pump – Install”.

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