3408C & 3412C INDUSTRIAL ENGINES Caterpillar


Engine Design

Usage:

3408C


Cylinder, Valve And Injection Pump Location

Number And Arrangement Of Cylinders ... 65 degree V-8

Valves Per Cylinder ... 4

Displacement ... 18.0 liters (1099 cu in)

Bore ... 137.2 mm (5.40 in)

Stroke ... 152.4 mm (6.00 in)

Compression Ratio ... 14.5:1

Type Of Combustion ... Direct Injection

Direction Of Crankshaft Rotation (as viewed from flywheel end) ... Counterclockwise

Direction Of Fuel Pump Camshaft Rotation (as viewed from pump drive end) ... Counterclockwise

Firing Order (Injection Sequence) ... 1-8-4-3-6-5-7-2

Valve Lash Setting

Inlet ... 0.38 mm (.015 in)

Exhaust ... 0.76 mm (.030 in)

NOTE: Front end of engine is opposite the flywheel end. Left side and right side of engine are as viewed from the flywheel end. No. 1 cylinder is the front cylinder on the left side. No. 2 cylinder is the front cylinder on the right side.

3412C


Cylinder, Valve And Injection Pump Location

Number And Arrangement Of Cylinders ... 65 degree V-12

Valves Per Cylinder ... 4

Displacement ... 27.0 liters (1649 cu in)

Bore ... 137.2 mm (5.40 in)

Stroke ... 152.4 mm (6.00 in)

Compression Ratio ... 14.5:1

Type Of Combustion ... Direct Injection

Direction Of Crankshaft Rotation (as viewed from flywheel end) ... Counterclockwise

Direction Of Fuel Pump Camshaft Rotation (as viewed from pump drive end) ... Counterclockwise

Firing Order (Injection Sequence) ... 1-4-9-8-5-2-11-10-3-6-7-12

Valve Lash Setting

Inlet ... 0.38 mm (.015 in)

Exhaust ... 0.76 mm (.030 in)

NOTE: Front end of engine is opposite the flywheel end. Left side and right side of engine are as viewed from the flywheel end. No. 1 cylinder is the front cylinder on the left side. No. 2 cylinder is the front cylinder on the right side.

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