SEAL 8J6242 - Caterpillar

The 3500 Series Engines were developed in order to provide power for industrial applications and generator set applications. The diesel engines are rated from 900 rpm to 1800 rpm. The engines can be equipped with either separate circuit aftercooling or jacket water aftercooling.3500 Engine Specifications
Table 1
3500 Engine Specifications
Item 3508 Engine 3512 Engine 3516 Engine
Cylinders and arrangement 60 degree Vee 8 60 degree Vee 12 60 degree Vee 16
Bore 170 mm (6.7 inch)
Stroke 190 mm (7.5 inch)
Type 4 stroke cycle
Compression ratio 13:1
Aspiration Turbocharged
Method of cooling the turbocharged air Jacket water aftercooling
Separate circuit aftercooling (option)
Displacement per cylinder 4.3 L (263 cu in)
Total displacement 34.5 L (2105 cu in) 51.8 L (3158 cu in) 69.1 L (4210 cu in)
Rotation (flywheel end) Counterclockwise rotation is standard.
Clockwise rotation is optional.
Fuel See this Operation and Maintenance Manual, "Fuel Recommendations" (Maintenance Section).
Method of fuel injection Electronic unit injectors
Method of starting Air starting motor
Electric starting motor
Maximum allowable back pressure 6.7 kPa (27 inch of H2O)
Maximum inlet air Restriction 6.2 kPa (25 inches of H2O)
Inlet valve lash 0.50 mm (0.020 inch)
Exhaust valve lash 01.00 mm (0.039 inch) 3500 Engine Design
Illustration 1 g00308097
3508 Engine design
(A) Inlet valve
(B) Exhaust valve
(C) Flywheel
Illustration 2 g00308167
3512 Engine design
(A) Inlet valve
(B) Exhaust valve
(C) Flywheel
Illustration 3 g00308357
3516 Engine design
(A) Inlet valve
(B) Exhaust valve
(C) Flywheel