G3508J, G3516J, and G3520J Engines Caterpillar

Assembly Procedure

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Illustration 1	g01252599

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Illustration 2	g01252424

1. Ensure that the oil hole in the bearing is aligned with the oil passage in housing (15). Use Tooling (B) and a suitable press to install bearing (14) in housing (15). Bearing (14) must be 1.5 ± 0.5 mm (0.06 ± 0.02 inch) below the surface of the housing. The diameter of bearing (14) must be 75.000 ± 0.055 mm (2.9527 ± 0.0022 inch) after installation.
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   Illustration 3	g01252620

2. Use Tooling (B) to install lip seal (13) in housing (15). Ensure that the lip of the seal is toward the bearing. Place clean engine oil on the lip seal.
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   Illustration 4	g01252420

3. Install shaft (7), retaining washers (12), the shims, and the bolts that hold shaft (7) in the housing.
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   Illustration 5	g01252622

4. Place clean engine oil on the bearing in the housing. Install shaft (1) and retaining washers (11) on shaft (7). Install retaining washers (11) and the bolts on the housing.
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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.

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   Illustration 6	g01252650

5. Install ceramic seal (10) in the rubber ring. Place clean water on the rubber ring and ceramic seal (10) for lubrication. Use hand pressure and the Tooling that is supplied with the seal group to install the ceramic seal.
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   Illustration 7	g01252659

6. Remove the spring from carbon seal assembly (9). Place clean water on the inside diameter of the carbon seal assembly for lubrication. Use hand pressure and the Tooling that is supplied with the seal group in order to install carbon seal assembly (9). The face of the seal should make light contact with the shaft.
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   Illustration 8	g01252660

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   Improper assembly of parts that are spring loaded can cause bodily injury. To prevent possible injury, follow the established assembly procedure and wear protective equipment.

7. Install spring (8) on carbon seal assembly (9).
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   Illustration 9	g01252664

8. Place clean engine oil on the shaft prior to installation of impeller (6). Install impeller (6) on the shaft. Use a suitable press to install impeller (6). Install the impeller until the distance between the face of the impeller and the face of the shaft is 0.000 ± 0.076 mm (0.0000 ± 0.0030 inch).
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   Illustration 10	g00592355

9. Install the O-ring seal around adapter (5). Place clean engine oil on the O-ring seal.

10. Position adapter (5) on the housing and install the bolts.
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    Illustration 11	g00592354

11. Place gear (2) on shaft (1) and install the bolts.

12. Install O-ring seals (3) and (4) on the housing. Place clean engine oil on the O-ring seals.

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1. Install the auxiliary water pump.