3512B Marine Auxiliary Engines Caterpillar

Removal Procedure

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Illustration 1	g00605123

1. Remove four bolts (1). Remove valve cover (2).
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   Illustration 2	g00605124

2. If necessary, remove O-ring seal (3).

Installation Procedure

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Illustration 3	g00605124

1. Inspect O-ring seal (3) for good condition. Obtain a new seal, if necessary. Make sure that the seal is installed in the groove of valve cover (2). Place the valve cover onto rocker arm base (4).
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   Illustration 4	g00605123

2. Install four bolts (1). Tighten the bolts to a torque of 10 N·m (7 lb ft). Tighten the bolts again to a torque of 20 ± 3 N·m (15 ± 2 lb ft).