3508C, 3512C and 3516C Locomotive Engines Caterpillar

Cylinder Block

Usage:

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Illustration 1	g02848777
Front view

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Table 1
Specification for 350-5217 Cylinder Block Gp
Item	Qty	Part	Specification Description
The top face of the cylinder block, bottom surface of spacer plate (2) and both sides of plate gasket (4) must be free of fuel, oil, water, gasket adhesives, assembly compounds and any other contaminants during assembly.
1	2	4W-4813 Plug	Torque to 100 ± 15 N·m (74 ± 11 lb ft).
2	8	362-9677 Spacer Plate	Thickness is 12.333 mm (0.4856 inch).
3	16	8T-0099 Dowel	Extension of the dowel from the top face of the cylinder block is 20.0 ± 0.5 mm (0.79 ± 0.02 inch).
4	8	144-5692 Plate Gasket	Thickness of plate gasket that is between cylinder block and spacer plate is 0.194 to 0.218 mm (0.0076 to 0.0086 inch).
5	8	197-7008 Dowel	Extension of the dowel from the top face of the cylinder block is 21.0 ± 0.5 mm (0.83 ± 0.02 inch).
A	10	101-1198 Camshaft Bearing	Bore in the block for the camshaft bearing is 98.000 ± 0.020 mm (3.8583 ± 0.0008 inch).
B	-	-	All centerlines through oil holes in the camshaft bearings and the camshaft bearing junctions (6) are shown for each side of the cylinder block.
B	-	-	Oil holes must be positioned from horizontal at an angle of 20 ± 5 degrees.
C	-	-	New dimension from centerline of crankshaft bearing bore to the top of the block is 586.0 mm (23.07 inch).
7	8	6V-3348 O-Ring Seal	Lubricate the bore lightly with sealant that is being sealed.
8	5	223-1696 Crankshaft Bearing Cap	Install crankshaft bearing caps with the part number and FRONT toward the front of the block. Each cap has a number. Each cap must be installed in the same position as the correct number on the side of the cylinder block pan rail.
D	-	-	Width of crankshaft bearing cap (8) is 340.030 ± 0.015 mm (13.3870 ± 0.0006 inch).
			Width of cylinder block for crankshaft bearing cap is 339.985 ± 0.015 mm (13.3852 ± 0.0006 inch).
			Tight press fit between the sides of the crankshaft bearing cap and the cylinder block is 0.075 mm (0.0030 inch).
			Loose press fit between the sides of the crankshaft bearing cap and the cylinder block is 0.015 mm (0.0006 inch).
E	-	-	Bore in the block for the crankshaft bearings: Standard, original new size is 169.742 ± 0.020 mm (6.6827 ± 0.0008 inch). 0.63 mm (0.025 inch) larger than original size is 170.372 ± 0.020 mm (6.7076 ± 0.0008 inch).
F	-	-	New dimension from centerline of crankshaft bearing bore to bottom of block (pan rails) is 230.00 mm (9.055 inch).
9	20	7X-7925 Bolt	Use the following procedure to tighten the bolts. 1. Lubricate the threads with clean engine oil before assembly. 2. Tighten the bolts by hand. 2. Tighten the bolts in the numerical sequence as shown in Illustration 1 to 190 ± 14 N·m (140 ± 10 lb ft). 3. Again tighten the bolts in the numerical sequence as shown in Illustration 1 to 180 ± 5 degrees.

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Illustration 2	g02848778
Right side view

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Table 2
Specification for 350-5217 Cylinder Block Gp
Item	Qty	Part	Specification Description
G	1	7N-2047 Dowel	Extension of the dowel from the rear face of the cylinder block is 6.0 ± 0.5 mm (0.24 ± 0.02 inch).
H	2	7N-2047 Dowel	Extension of the dowel from the front face of the cylinder block is 6.0 ± 0.5 mm (0.24 ± 0.02 inch).
J	2	4N-0683 Dowel	Extension of the dowel from the rear face of the cylinder block is 19.0 ± 0.5 mm (0.75 ± 0.02 inch).
K	2	7N-2044 Dowel	Extension of the dowel from the front face of the cylinder block is 40.0 ± 0.5 mm (1.58 ± 0.02 inch).
10	4	5F-9657 O-Ring Seal	Lubricate the bore lightly with sealant that is being sealed.