ELBOW GP-AIR INLET 3783538 - Caterpillar

Installation Procedure
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Table 1
Required Tools
Tool Part Number Part Description Qty
A(1) - Guide Bolt
(M9 by 95 mm) 2
A(2) - Guide Bolt
(M11 by 100 mm) 2
(1) C1.1 engines
(2) C1.5 and C2.2 engines
Thoroughly clean the mating surfaces of the cylinder head and the cylinder block. Do not damage the mating surfaces of the cylinder head or the cylinder block. Ensure that no debris enters the cylinder bores, the coolant passages, or the lubricant passages.
Inspect the mating surface of the cylinder head for distortion. Refer to Specifications, "Cylinder Head" for more information. If the mating surface of the cylinder head is distorted beyond maximum permitted limits, replace the cylinder head.
Illustration 1 g01317467
Typical example
Inspect dowels (3) for damage. If necessary, replace the dowels in the cylinder block.
Install Tooling (A) to the cylinder block. Refer to Illustration 1.
Illustration 2 g06084915
Typical example
Note: During the following procedure, a new cylinder head gasket thickness must be calculated if the crankshaft, a connecting rod, or a piston has been replaced. Refer to Systems Operation, Testing, and Adjusting, Piston Height - Inspect.Note: During the following procedure, if the crankshaft, a connecting rod or a piston has not been replaced, obtain a new cylinder head gasket of the same part number as the gasket that was removed. The part number of the cylinder head gasket is marked at position (X).
Align cylinder head gasket (4) with Tooling (A) and with dowels (3). Install the cylinder head gasket onto the cylinder block.
Use a suitable lifting device to lift the cylinder head. The weight of the cylinder head is approximately 30 kg (66 lb).
Illustration 3 g01309672
Typical example
Use Tooling (A) to align cylinder head (2) with the cylinder block. Install the cylinder head to the cylinder block.Note: Ensure that the cylinder head is correctly positioned onto dowels (3).
Remove Tooling (A).
Install bolts (1) to cylinder head (2).
Illustration 4 g01317351
The tightening sequence for a three cylinder engine
Illustration 5 g01309552
The tightening sequence for a four cylinder engine
For C1.1 engines, tighten bolts (1) to a torque of 51 N m (38 lb ft). Use the numerical sequence that is shown in Illustration 4.For C1.5 engines, tighten bolts (1) to a torque of 101 N m (75 lb ft). Use the numerical sequence that is shown in Illustration 4.For C2.2 engines, tighten bolts (1) to a torque of 101 N m (75 lb ft). Use the numerical sequence that is shown in Illustration 5.
If necessary, install the water temperature regulator to the cylinder head.