DUCT AS 2022165 - Caterpillar

Illustration 1 g02411639
Inspect dowels (31) for damage. If necessary, replace the dowels in the cylinder block.
Align a new cylinder head gasket (32) with dowels (31). Install the new cylinder head gasket (32) onto the cylinder block.
Install Tooling (B) to the cylinder block.
Use a suitable lifting device to lift cylinder head. The weight of the cylinder head is approximately 96 kg (212 lb).Note: A spreader bar must be used to distribute the weight of the cylinder head during the lifting operation.
Use Tooling (B) to align the cylinder head with the cylinder block. Install the cylinder head to the cylinder block.Note: Ensure that the cylinder head is correctly positioned on dowels (31).
Remove Tooling (B).
Illustration 2 g02216034
Clean bolts (29). Follow Step 9.a for the procedure to inspect the bolts.
Use a straight edge to check the threads of the bolts. Refer to Illustration 2. Replace any bolts that show visual reduction in the diameter of the thread over Length (Y).
Lubricate the threads and the shoulder of bolts (29) with clean engine oil.
Illustration 3 g02206215
Illustration 4 g02007814
Install bolts (29) to cylinder head (30).
Tighten the bolts to a torque of 50 N m (37 lb ft) in the numerical sequence that is shown in Illustration 4.
Tighten the bolts to a torque of 100 N m (74 lb ft) in the numerical sequence that is shown in Illustration 4.
Use Tooling (C) to tighten the bolts an additional 225 degrees in the numerical sequence that is shown in Illustration 4.Note: Illustration depicts the bolt head travel distance of 225 degrees
Illustration 5 g02206214
Use Tooling (D) to lubricate the O-ring seals. Install new O-ring seal (27) and O-ring seal (28) to bypass tube (25). Install the bypass tube in the cylinder head. Install bolts (24). Tighten the bolts to a torque of 9 N m (80 lb in).
Follow Step 16.a through Step 16.c to connect harness assembly (22) to coolant temperature sensor (23).
Connect harness assembly (22) to coolant temperature sensor (23).
Slide locking tab (21) into the locked position.
Position harness assembly (22) onto the bypass tube and install a new cable strap (26).
Illustration 6 g02206213
Remove the plugs and caps from the ports and tube assembly.
Use Tooling (C) to lubricate new O-ring seals (17) (not shown). Install the O-ring seal to tube assembly (18) for the fuel return from the cylinder head.
Install tube assembly (18) to the cylinder head.
Install bolt (16) finger tight.
Install bolt (20) to tube clip (19) finger tight.
Tighten bolt (16) and bolt (20) to a torque of 22 N m (195 lb in).
Illustration 7 g02206194
Follow Step 23.a through Step 23.b to connect harness assembly (11) to inlet air temperature sensor (10).
Connect harness assembly (11) to inlet air temperature sensor (10).
Slide locking tab (12) into the locked position.
Follow Step 24.a through Step 24.b to connect harness assembly (15) to boost pressure sensor (13).
Connect harness assembly (15) to boost pressure sensor (13).
Slide locking tab (14) into the locked position.
Position the harness assembly onto the cylinder head. Use new cable straps to secure the harness assembly to the cylinder head. Ensure that the harness assembly is not