C9.3 Marine Engine Caterpillar

Cylinder Head - Remove and Install

Usage:

C9.3 C93

Removal Procedure

Show/hide table

Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	-	Loctite Graphite-50 Anti-Seize Lubricant	-

Start By:

Remove exhaust manifold.
Remove fuel rail and fuel manifold.
Remove fuel filter base.
Remove rocker arm and shaft.
Remove water temperature regulator.
Remove aftercooler.
Remove alternator (if equipped).
Remove fuel injection pump.

Show/hide table

NOTICE

Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

Show/hide table

NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat^® products. Dispose of all fluids according to local regulations and mandates.

Show/hide table




Illustration 1	g03835750

Remove bolt (2) and belt tensioner (1).
Show/hide table

Illustration 2 g03835753
Remove bolts (4), bolts (8), and bolts (9).
Attach a suitable lifting device to lifting eye (3) and lifting plate (6). Remove cylinder head (5) and alternator support bracket (7). The combined weight of lifting eye (3), lifting plate (6), cylinder head (5), and alternator support bracket (7) is approximately 157 kg (346 lb).
Show/hide table

Illustration 3 g03835784
Remove bolts (10) and bracket assembly (11).
Remove bolt (12), stud (13), and bracket (14).

Remove bolts (15) and lifting eye (3).

Show/hide table




Illustration 4	g03836044

Remove studs (16) and cover (17).

Remove bolts (18), alternator support bracket (7), and lifting plate (6).

Installation Procedure

Install cylinder head (5) in the reverse order of removal.

Show/hide table




Illustration 5	g03836094
Examine bolts (8) for wear or for damage. Refer to Reuse And Salvage Guidelines, SEBF8301, "Inspection and Reuse of Critical Fasteners Used in All Engines". Replace with new bolts (8), if necessary.

Note: Top gasket face of the cylinder block, the cylinder liners, and the bottom face of cylinder head (5) must be free of oil, fuel, water, and other contaminants before assembly.

Apply Tooling (A) to both sides of the washers and to only the threaded portions of bolts (8.)
Tighten bolts (8) in the numerical sequence shown in illustration 5 to a torque of 160 ± 15 N·m (118 ± 11 lb ft).
Retighten bolts (8) in the numerical sequence shown in illustration 5 to a torque of 160 ± 15 N·m (118 ± 11 lb ft). Tighten bolts (8) by an additional 90° in the numerical sequence shown in illustration 5.
Loosen bolts (8) until the washers are loose under the bolt heads.
Repeat Steps 1.b through 1.c.
Tighten bolts (4) in the numerical sequence shown in illustration 5 to a torque of 28 ± 7 N·m (248 ± 62 lb in).