CYLINDER HEAD GP 2275953 - Caterpillar

Cat C32 Marine Generator Sets have the following characteristics:
Four-stroke cycle
Direct fuel injection
Mechanically actuated electronic unit injection
Turbocharging
Separate circuit aftercooling (SCAC)The Mechanical Electronic Unit Injector (MEUI) fuel system eliminates many of the mechanical components that are used in a pump-and-line system. The electronic control and mechanical actuation also provide increased control of the timing and increased control of the fuel injection pressure. The timing advance is achieved by precise control of the unit injector timing. Engine speed is controlled by adjusting the injection duration. A special speed-timing wheel provides information to the Electronic Control Module (ECM) for detection of cylinder position and engine speed.The C32 Marine Engine uses a low emission system which is integrated into the engine air cleaner. This system eliminates the venting of oil vapors into the engine room. The closed crankcase ventilation system is completely enclosed. This system requires a minimum amount of maintenance.Engine Specifications
Note: The front end of the engine is opposite the flywheel end of the engine. The left side and the right side of the engine are determined from the flywheel end. The number 1 cylinder is the front cylinder.C32 Marine Engines
Illustration 1 g00531921
Cylinder and valve locations
(A) Inlet valves
(B) Exhaust valves
(C) Front of the engine
Table 1
C32 Marine Engine Specifications
Cylinders and Arrangement 12 cylinder vee block
Bore 145 mm (5.7 inch)
Stroke 162 mm (6.4 inch)
Compression Ratio 15:1
Aspiration Twin Turbocharged Aftercooled Aspiration
Displacement 32 L (1953 in3)
Firing Order 1-10-9-6-5-12-11-4-3-8-7-2
Rotation (flywheel end) Counterclockwise Electronic Engine Features
The engine has built-in diagnostics in order to ensure that all of the components are operating properly. In the event of a system component failure, the operator will be alerted to the condition via the diagnostic lamp located on the control panel. Cat Electronic Technician (ET) can be used to read the numerical code of the faulty component or condition. Intermittent faults are also logged and stored in memory.These Cat Marine Engines are designed with electronic controls. The integral on board computer controls the operation of the engine. Current operating conditions are monitored. The Electronic Control Module (ECM) controls the response of the engine to these conditions and to the demands of the operator. These conditions and operator demands determine the precise control of fuel injection by the ECM. The electronic engine control system provides the following features:
Engine monitoring
Electronic engine speed governing
Automatic air/fuel ratio control
Torque rise shaping
Injection timing control
System diagnosticsThe engine ECM will automatically provide the correct amount of fuel in order to start the engine. Do not hold the throttle down while the engine is cranking. If the engine fails to start in 20 seconds, release the starting switch. Allow the starting motor to cool for 2 minutes before using the starting motor again.For more information on electronic engine features, refer to the Operation and Maintenance Manual, "Features and Controls" topic (Operation Section).Engine Cooling and Lubrication
The engines have water-cooled exhaust manifolds, risers, and turbochargers. These components will minimize the heat that is radiated into the engine room. Changes to the cooling system of these engines minimize the weight and the