SENSOR AS-HMD 4816668 - Caterpillar

Removal Procedure
Start By:
Remove the turbocharger. Refer to Disassembly and Assembly, "Turbocharger - Remove".
Illustration 1 g01245092
Typical example
Illustration 2 g01264513
Tightening sequence for the exhaust manifold
Loosen bolts (4) in reverse numerical order to the sequence that is shown in Illustration 2. Note: This will help prevent distortion of the exhaust manifold.
Remove bolts (4) from exhaust manifold (3). Note: Support the manifold as the bolts are removed.
Remove exhaust manifold (3).
Remove exhaust manifold gasket (1).
If necessary, remove studs (2) from exhaust manifold (3). Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A - Guide Bolt
M10 by 100 mm 2
Illustration 3 g01245092
Typical example
Ensure that the exhaust manifold is clean and free from damage. Clean the joint face of the cylinder head.
If necessary, install studs (2) to exhaust manifold (3). Tighten the studs to a torque of 18 N m (13 lb ft).
Illustration 4 g01245093
Tightening sequence for the exhaust manifold
Install Tooling (A) to the cylinder head in Positions (X). Refer to Illustration 4.
Position a new exhaust manifold gasket (1) onto Tooling (A). Note: Ensure that the exhaust manifold gasket is correctly oriented.
Align exhaust manifold (3) with Tooling (A). Install the exhaust manifold to the cylinder head. Note: If the engine has a top mounted turbocharger, the tube assembly for the oil drain must be connected to the cylinder block before the exhaust manifold is installed.
Install new bolts (4) finger tight.
Remove Tooling (A). Install the remaining bolts (4) finger tight.
Tighten bolts (4) to a torque of 33 N m (24 lb ft) in the sequence that is shown in Illustration 4. End By:
Install the turbocharger. Refer to Disassembly and Assembly, "Turbocharger - Install".