BLOCK 1S6609 - Caterpillar

Illustration 3 g03370340
Clean bolts (24). Follow Steps 10.a for the procedure to inspect the bolts.
Use a straight edge to check the threads of the bolts. Refer to Illustration 3. Replace any bolts that show visual reduction in the diameter of the thread over Length (Y).
Lubricate the threads and the shoulder of bolts (24) with clean engine oil.
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Illustration 5 g06239253
Install bolts (24) to cylinder head (25).
Tighten the bolts to a torque of 50 N m (37 lb ft) in the numerical sequence. Refer to Illustration 5.
Tighten the bolts to a torque of 100 N m (74 lb ft) in the numerical sequence. Refer to Illustration 5.
Turn the bolts through an extra 225 degrees in the numerical sequence. Refer to Illustration 5. Use Tooling (B) to achieve the correct final torque.
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Use Tooling (C) to lubricate the O-ring seals. Install new O-ring seal (23) and new O-ring seal (22) to bypass tube (21). Install the bypass tube in the cylinder head. Install bolts (20). Tighten the bolts to a torque of 22 N m (16 lb ft).
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Install a new O-ring seal (17) (not shown) to tube assembly (19).
Connect tube assembly (18) to the cylinder head. Ensure that the tube assembly is correctly seated into the cylinder head.
Install bolt (14) and bolt (19) to tube assembly (18). Tighten the bolts to a torque of 22 N m (195 lb in).
Follow Step 20.a through Step 20.c to connect tube assembly (16).
Install a new sealing washer (11) (not shown) to banjo bolt (10).
Install banjo bolt (10) to tube assembly (16).
Install the remaining new sealing washer (11) (not shown) to banjo bolt (10).Tighten banjo bolt (10). Tighten the banjo bolt to a torque of 15 N m (133 lb in).
Install bolt (15) to tube assembly (16). Tighten the bolt to a torque of 44 N m (32 lb ft).
Connect harness assembly (12) to wastegate solenoid (13).
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Connect harness assembly (7) to coolant temperature sensor (6).
Install the air inlet hose to inlet connection (8) on inlet manifold (9). Securely tighten the hose clamps.
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Follow Step 25.a through Step 25.c to disconnect the harness assemblies from boost pressure sensor (6) and inlet air temperature sensor (5).
Connect harness assembly (2) to boost pressure sensor (4).
Slide the locking tab into the locked position.
Connect harness assembly (3) to inlet air temperature sensor (5).Note: The harness assembly for the air temperature sensor (5) has no locking tab.
Use new cable straps to secure the harness assembly to the cylinder head and to the inlet manifold. Ensure that the harness assembly is not strained.Note: Ensure that the harness assembly is clear of other engine components.
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If necessary, install water temperature regulator housing (1) to the cylinder head. Refer to Disassembly and Assembly, "Water Temperature Regulator Housing - Remove and Install" for the correct procedure.
Connect the upper radiator hose to water temperature regulator housing (1) on the cylinder head. Securely tighten the hose clamps.
Fill the cooling system with coolant. Refer to Operation and Maintenance Manual, "Cooling System Coolant - Change" for the