C7 Industrial Engines Systems Operation – Engine Design

 Cylinder And Valve Location

(A) Exhaust valve.

(B) Inlet valve.

Bore … 110 mm (4.3 inch)

Stroke … 127 mm (5.0 inch)

Displacement … 7.25 L (442 cu in)

Number of cylinders … 6

Cylinder arrangement … In-line

Valves per cylinder … 3

In order to check the engine valve lash setting, the engine must be cold and the engine must be stopped. Engine valve lash settings

Inlet … 0.38 ± 0.08 mm (0.015 ± 0.003 inch)
Exhaust … 0.64 ± 0.08 mm (0.025 ± 0.003 inch)
Type of combustion … Direct Injection

Firing Order … 1 – 5 – 3 – 6 – 2 – 4

The crankshaft rotation is viewed from the flywheel end of the engine. Crankshaft rotation … counterclockwise

Note: The front end of the engine is opposite the flywheel end of the engine. The left side of the engine and the right side of the engine are viewed from the flywheel end of the engine. The number one cylinder is the front cylinder.

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