C27 and C32 Industrial Engines Caterpillar

Cylinder Head - Remove

Usage:

C27 AT4

Removal Procedure

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Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	138-7573	Link Bracket	3
B	1U-9200	Lever Puller Hoist	1

Start By:

Remove the Catalyst Module.
Remove the Fuel Pressure Regulator.
Remove the Exhaust Manifold.
Remove the Inlet Manifold.
Remove the Water Temperature Regulator Housing.
Remove the Electronic Unit Injectors.
Remove the Valve Mechanism Cover Base.
Remove the Rear Power Take-Off (RPTO).

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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.

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NOTICE

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

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NOTICE

Do not turn the crankshaft or the camshaft while the camshaft gear is removed. If the rear gear group is not correctly timed during installation, interference can occur between the pistons and the valves, resulting in damage to the engine.

Drain the coolant from the cooling system into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Cooling System Coolant - Change".
Note: If the catalyst is not mounted on top of the engine, proceed to Step 4.
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Illustration 1 g02277433
Remove bolts (1) and remove brace (2). Repeat this step for the opposite side.
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Illustration 2 g02277480
Remove bolts (3) and remove brace (4). Repeat this step for the opposite side.
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Illustration 3 g02278954
Remove fuel hose assemblies (5). Repeat this step for the opposite side.
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Illustration 4 g02277897
Remove bolts (6) and position oil filter base (7) out of the way.
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Illustration 5 g02277933
Remove six bolts (8) and position bracket assembly (9) out of the way.
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Illustration 6 g02278995
Remove bolts (10) and remove cover (11).
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Illustration 7 g02279013
Remove bolts (12) and remove damper (13). Repeat this step for the opposite side.
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Illustration 8 g02279036
Remove bolts (14). Remove sealing plate (15) and remove adapter (16). Repeat this step for the opposite side.
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Illustration 9 g02277955
Disconnect tube (17). Repeat this step for the opposite side.
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Illustration 10 g02278613
Remove bolts (18) and remove camshaft gear (19).
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Illustration 11 g02279353
Remove bolts (20). Remove thrust washer (21), adapter (22), and the sealing plate. Repeat this step for the opposite side.
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Illustration 12 g02278373

Overhead view from the rear of the engine.
Remove 13 bolts (24) from cylinder head (23). Repeat this step for the other side.
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Illustration 13 g02278073
Attach Tooling (A) and a suitable lifting device to cylinder head (23). Attach Tooling (B) to the side of cylinder head (23) that is nearest the exhaust ports. The weight of cylinder head (23) is approximately 300 kg (661 lb). Repeat this step for the other side.
Remove ten bolts (26). Repeat this step for the other side.
Remove 16 bolts (25) and remove cylinder head (25). Remove the gaskets, O-ring seals, and the spacer plate. Repeat this step for the opposite side.