3126B Marine Engine Caterpillar


Engine Design

Usage:

3126B 3GS



Illustration 1g01105757

Cylinder and valve location

(A) Exhaust valve

(B) Inlet valve

Type ... Four stroke

Combustion system ... Direct injection

Bore ... 110 mm (4.3 inch)

Stroke ... 127 mm (5.0 inch)

Number of cylinders ... 6

Displacement ... 7.2 L (440 cu in)

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)

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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