CYLINDER GP-RIPPER 4779271 - Caterpillar

Table 1
3512B Marine Auxiliary Engine Specifications
Item 3512B Engine
Rated rpm 1800
Low idle rpm 650
Cylinders and arrangement 60 degree Vee 12
Bore 170 mm (6.7 inch)
Stroke 190 mm (7.5 inch)
Type 4 stroke cycle
Compression ratio 14:1
Aspiration Turbocharged
Method of cooling the turbocharged air Jacket water aftercooling
Displacement per cylinder 4.3 L (263 cu in)
Total displacement 51.8 L (3158 cu in)
Rotation (flywheel end) Counterclockwise
Fuel See this Operation and Maintenance Manual, "Refill Capacities and Recommendations" (Maintenance Section).
Method of fuel injection Electronic unit injectors
Method of starting Air starting motor
Exhaust back pressure (design) 2.5 kPa (10 inches of H2O)
Maximum allowable exhaust back pressure 5.9 kPa (20 inches of H2O)
Maximum allowable air inlet restriction 6.2 kPa (25 inches of H2O)
Illustration 1 g00749769
3512B Engine
(A) Inlet valve
(B) Exhaust valve
(C) Flywheel