C7.1 Engines for Caterpillar Built Machines Caterpillar


Engine Design

Usage:

525D 2L5


Illustration 1g01284058
Cylinder and valve location
(A) Inlet valve
(B) Exhaust valve

Bore ... 105 mm (4.13385 inch)

Stroke ... 135 mm (5.31495 inch)

Displacement ... 7.01 L (427.78 cubic inch)

Cylinder arrangement ... In-line

Type of combustion ... Direct injection

Compression ratio for the engine ... 16.5:1

Number of cylinders ... 6

Valves per cylinder ... 4

Valve lash

Inlet valve ... 0.35 mm (0.014 inch)
Exhaust valve ... 0.35 mm (0.014 inch)

Firing order ... 1, 5, 3, 6, 2, 4

When the crankshaft is viewed from the front of the engine, the crankshaft rotates in the following direction. ... Clockwise

When the camshaft is viewed from the front of the engine, the camshaft rotates in the following direction. ... Clockwise

The front 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 determined from the flywheel end. No. 1 cylinder is the front cylinder of the engine.

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