3512C and 3516C Marine Engines Caterpillar

Crankshaft

Usage:

3516C HZS

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Illustration 1	g03015257

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Table 1
Specification for 379-4860 Crankshaft Gp
Item	Qty	Part	Specification Description
Before assembly, lubricate the main bearing journals and the thrust plates with clean engine oil.
1	2	7C-6209 Thrust Plate	Thrust plates should be used only on center main bearing.
2	24	7N-2003 Dowel	Protrusion (C) of the dowel is 8.0 ± 0.5 mm (0.31 ± 0.02 inch).
3	6	2W-2288 Plug	Torque to 50 ± 7 N·m (37 ± 5 lb ft).
4	36	128-4845 Bolt As	Use the following procedure to tighten the bolts: 1. Before assembly, lubricate the bolt threads, the bolt shank, the washer, and the underside of the bolt head with Molylube lubricant. NOTE: Torque outer bolts first, then torque inner bolt. 2.Tighten the bolts evenly to a torque of 200 ± 5 N·m (148 ± 4 lb ft). 3. Loosen the bolts. 4. Again, tighten evenly to 70 ± 5 N·m (52 ± 4 lb ft). 5. Rotate each bolt for an additional turn of 120 ± 5 degrees. NOTE: Do not reuse counterweight bolts.
After assembly into cylinder block, end play of the new crankshaft is 0.17 mm to 0.63 mm (0.007 inch to 0.025 inch).

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