C3.4B Engines For Caterpillar Built Machines Caterpillar


Engine Design

Usage:

CD-44B 398


Illustration 1g06090557
Cylinder and valve location
(A) Exhaust valve
(B) Inlet valve

Bore ... 99 mm (3.90 inch)

Stroke ... 110 mm (4.33 inch)

Displacement ... 3.4 L (207 in3)

Cylinder arrangement ... In-line

Type of combustion ... Direct injection

Compression ratio

Turbocharged aftercooled ... 17.5:1

Number of cylinders ... 4

Valves per cylinder ... 2

Firing order ... 1, 3, 4, 2

When the crankshaft is viewed from the flywheel end of the engine, the crankshaft rotates in the following direction: ... Counterclockwise

When the camshaft is viewed from the flywheel end of the engine, the camshaft rotates in the following direction: ... Counterclockwise

Note: The left side and the right side of the engine are viewed from the flywheel end. The No. 1 cylinder is the front cylinder.

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