G3304 and G3306 Engines Caterpillar

Assembly Procedure

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Illustration 1	g00992622

Note: The seal must be installed with the lip toward the bearings.

1. Install the lip seal in housing (1) with Tooling (A) to the bottom of the seal counterbore. Put a thin layer of engine oil on the lip of the seal.
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   Illustration 2	g00992639

2. Use a press to install shaft (2) in bearing (3).
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   Illustration 3	g00992658

3. Install the shaft and bearing (3) in housing (1).
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   Illustration 4	g00992660

4. Install snap ring (4) in the housing with Tooling (B).
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   Illustration 5	g00992684

5. Install bearing (5) on gear (6).
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   Illustration 6	g00992691

   Note: Make sure that the pins on the gear engage the holes in the shaft when you install gear (6).

6. Put gear (6) in position on the shaft and install the washer and the bolt.
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   Illustration 7	g00992695

7. Install O-ring seal (7) on the housing.
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   Illustration 8	g00992707

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   NOTICE
   Clean water is the only lubricant that is permitted for assembly. DO NOT damage or touch the wear surfaces of the carbon ring or the ceramic ring. Install the ceramic ring with the smoothest face of the ring toward the carbon seal.

8. Put ceramic ring (8) in position in the rubber seal. Use hand pressure and use the tooling that is with the replacement ring to install the ceramic ring and the rubber seal.
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   Illustration 9	g00992713

9. Remove the spring from the seal assembly (9). Use hand pressure and the tooling that is with the replacement ring to install the seal assembly. Push the seal assembly on the shaft until the seal faces make light contact.
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   Illustration 10	g00992717

10. Install spring (10) on the seal assembly.
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    Illustration 11	g00992721

11. Put impeller (11) in position on the shaft.
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    Illustration 12	g00992724

12. Install the washer and bolt (12). Tighten the bolt to a torque of 39 ± 1 N·m (28 ± 1 lb ft).

13. Install a new gasket and cover (13) on the housing.
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    Illustration 13	g00992725

14. Install a new gasket and elbow (14) on the housing.

End By:

1. Install the water pump. Refer to Disassembly and Assembly, "Water Pump - Install".