C175-16 and C175-20 Engines for Off-Highway Trucks Caterpillar

Cylinder Block - Type 1

Usage:

797F LAJ

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Illustration 1	g02898417

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Table 1
Specification for 284-8359 Cylinder Block Gp
Item	Qty	Part	Specification Description
1	6	279-0776 Orifice	Use the following procedure to install the orifice: Orifice (1) is only for number five cylinder through number ten cylinder. 1. Align the orifice with the outside diameter chamfer facing the cylinder block. 2. Apply green Loctite 620 to the outside diameter of the orifice. 3. Fully seat the orifice in the block flush with the head face. Remove any excessive Loctite from the head and insert face.
2	4	279-0774 Orifice	Use the following procedure to install the orifice: Orifice (2) is only for number one cylinder through number four cylinder. 1. Align the orifice with the outside diameter chamfer facing the cylinder block. 2. Apply green Loctite 620 to the outside diameter of the orifice. 3. Fully seat the orifice in the block flush with the head face. Remove any excessive Loctite from the head and insert face.
3	1	6V-6560 O-Ring Seal	Before assembly, lightly lubricate all around the bore with clean engine oil.

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Illustration 2	g02898438
Front view of engine

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Table 2
Item	Qty	Part	Specification Description
A	40	6V-3535 Dowel	Extension of dowel from the surface of the cylinder block is 16.0 ± 1.0 mm (0.63 ± 0.04 inch).
4	11	249-6392 Camshaft Bearing	Before assembly, apply green 8T-2998 Lubricant to the inner diameter of each camshaft bearing. The camshaft bearing joint must be in the 2 O'clock or the 10 O'clock position. The oil hole must be on the centerline of the bore.

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Illustration 3	g02898439
Right side view

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Table 3
Item	Qty	Part	Specification Description
B	4	4N-0683 Dowel	Extension of dowel from the face of the cylinder block is 19.0 ± 1.0 mm (0.75 ± 0.04 inch).

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Illustration 4	g02898440
Rear view of engine

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Table 4
Item	Qty	Part	Specification Description
5	2	244-2446 Cup Plug	Before assembly, apply High Strength or High Temperature Anaerobic Flange Sealant to the outside diameter and to the bores of cup plugs.
6	32	262-1102 Cup Plug	Before assembly, apply High Strength or High Temperature Anaerobic Flange Sealant to the outside diameter and to the bores of cup plugs. Installation depth is 3.4 ± 1.8 mm (0.13 ± 0.07 inch).
C	-	-	Bore in the block for the camshaft bearing is 98.00 ± 0.02 mm (3.858 ± 0.001 inch).
E	-	-	New dimension from centerline of crankshaft bearing bore to the top of the block is 650 mm (25.6 inch).
7	2	245-9914 Bearing Cap As	Width of bearing cap (D) is 375.92 ± 0.03 mm (14.800 ± 0.001 inch). Width in the cylinder block for the bearing cap is 376.00 ± 0.05 mm (14.803 ± 0.002 inch).
7	9	245-9915 Bearing Cap As
F	-	-	Bore in the block for the main bearing is 210.000 ± 0.020 mm (8.2677 ± 0.0008 inch).

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Illustration 5	g02898441

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Table 5
Item	Qty	Part	Specification Description
8	22	154-1580 Hard Washer	Use the following procedure to tighten the main bearing cap bolts: 1. Tighten studs (11) to 100 ± 20 N·m (74 ± 15 lb ft). 2. Again tighten studs (11) to 100 ± 20 N·m (74 ± 15 lb ft). 3. Assemble main bearing caps (7) with the cast on part number toward the front of the cylinder block. 4. Lubricate the threads of the studs (11) and both faces of washer plate (12) with engine oil. Assemble main bearing cap and hand tighten the nuts. 5. Lubricate the threads of bolts (9) and both sides of washers (8) with engine oil. Assemble and hand tighten the bolts and the washers in the side of the cylinder block. 6. Start at the front of the engine (number one main bearing cap). Tighten all the side bolts on the right-hand side (same side as the bearing tab slots) of the cylinder block to 100 ± 20 N·m (74 ± 15 lb ft). 7. Start at the front of the engine (number one main bearing cap). Tension both studs (11) simultaneously to 530000 N (119150 lb). Use 135000 ± 1000 kPa (19580 ± 145 psi) pressure for the tensioner. Use the 278-1150 Stud Tensioner Tool Group. 8. Hand tighten both nuts (10) with the use of the gear drives on the side of tensioner. 9. Release the hydraulic pressure on the tensioner. 10. Repeat Step 7 through Step 9 for main bearing caps 2 through 9. 11. Again, repeat Step 7 through Step 9 for all main bearing caps. 12. Start at the front of the engine (number one main bearing). Tighten all the side bolts on the left-hand side (opposite side as the bearing tab slots) of the cylinder block to 100 ± 20 N·m (74 ± 15 lb ft). 13. Start at the front of the engine (number one main bearing cap). Tighten all the side bolts on the right-hand side (same side as the bearing tab slots) of the cylinder block to 530 ± 70 N·m (391 ± 52 lb ft). 14. Start at the front of the engine (number one main bearing). Tighten all the side bolts on the left-hand side (opposite side as the bearing tab slots) of the cylinder block to 530 ± 70 N·m (391 ± 52 lb ft).
9	22	6V-9167 Bolt
10	22	241-8249 Nut
11	22	260-9347 Stud
12	11	243-5196 Plate

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Illustration 6	g02912336

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Table 6
Item	Qty	Part	Specification Description
-	-	-	The camshaft bearings (4) are installed into the cylinder block at the following positions:
			Position (G) is 2847.0 ± 1.5 mm (112.09 ± 0.06 inch).
			Position (H) is 2567.0 ± 1.5 mm (101.06 ± 0.06 inch).
			Position (J) is 2287.0 ± 1.5 mm (90.04 ± 0.06 inch).
			Position (K) is 2007.0 ± 1.5 mm (79.06 ± 0.06 inch).
			Position (L) is 1727.0 ± 1.5 mm (67.99 ± 0.06 inch).
			Position (M) is 1447.0 ± 1.5 mm (56.97 ± 0.06 inch).
			Position (N) is 1167.0 ± 1.5 mm (45.94 ± 0.06 inch).
			Position (P) is 887.0 ± 1.5 mm (34.92 ± 0.06 inch).
			Position (R) is 607.0 ± 1.5 mm (23.90 ± 0.06 inch).
			Position (S) is 327.0 ± 1.5 mm (12.87 ± 0.06 inch).
			Position (T) is 47.0 ± 1.5 mm (1.85 ± 0.06 inch).

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