3808530 Volvo.Penta Crankshaft

3408 Engine Shown
Turbochargers (1), Exhaust Outlet (2), Crankcase Breather (3), Lifting Eye (4), Flywheel (5), Magnetic Pickup (6), Electronic Control Module (ECM) (7), Oil Fill Tube (8), Thermostat (9), Primary Fuel Filter (10), Water Pump (11), Crankshaft Vibration Damper (12), Alternator (13), Oil Filters (14), Crankcase Drain Plug (15), Fuel Filters and Priming Pump (16).3408 Engine Description
Caterpillar 3408 electronically controlled Industrial Engines are 18 liter (1099 cu in), 137 mm (5.4 in) bore and 152.4 mm (6.0 in) stroke, four cycle, 8 cylinder, 65 degree vee diesel design. The engine is twin turbocharged with jacket water aftercooling and direct fuel injection. It is designed for petroleum and auxiliary industrial applications.The engine and components are designed for high power output. The reduced size and weight plus increased fuel economy provide maximum performance. Contact your Caterpillar dealer for information on power ratings.Larger diameter plungers and a higher injection rate camshaft are incorporated in the valve train/fuel system. The fuel lines are made of high strength steel and the ends of the lines have collared washers to increase reliability.The cooling system has a gear driven centrifugal water pump, two thermostats (one for each bank) which regulate engine coolant temperature, and an oil cooler. A customer supplied fan drive and cooling system (radiator) may be required for the industrial engine.The engine lubricating oil, which is both cooled and filtered, is supplied by a gear driven pump. Bypass valves provide unrestricted flow of lubrication oil to the engine parts when oil viscosity is high, or if either the oil cooler or oil filter elements should become plugged.The 3408 Industrial Engine is electronically governed and features an exclusive electronic Engine Control Module (ECM). The ECM is a microprocessor-based system that provides full range isochronous speed governing which controls the fuel injection pump output to maintain engine speed specified by the throttle position sensor.The ECM also provides a cold mode starting strategy, air to fuel ratio control for transient smoke limiting, automatic turbocharger boost pressure and rack position sensor calibration, engine protection and diagnostics.3412 Engine Description
Caterpillar 3412 electronically controlled Industrial Engines are 27 liter (1649 cu in), 137 mm (5.4 in) bore and 152.4 mm (6.0 in) stroke, four cycle, 12 cylinder, 65 degree vee diesel design. The engine is series turbocharged with jacket water aftercooling and direct fuel injection. It is designed for petroleum and auxiliary industrial applications.The engine and components are designed for high power output. The reduced size and weight plus increased fuel economy provide maximum performance. Contact your Caterpillar dealer for information on power ratings.Larger diameter plungers and a higher injection rate camshaft are incorporated in the valve train/fuel system. The fuel lines are made of high strength steel and the ends of the lines have collared washers to increase reliability.The cooling system has a gear driven centrifugal water pump, two thermostats (one for each bank) which regulate engine coolant temperature, and an oil cooler. A customer supplied fan drive and cooling system (radiator) are required for the industrial engine.The engine lubricating oil, which is both cooled and filtered, is supplied by a gear driven pump. Bypass valves provide unrestricted flow of lubrication oil to engine parts when oil viscosity is high, or either the oil cooler or oil filter elements should become plugged.The 3412 Industrial Engine is electronically governed and features an exclusive electronic Engine Control Module (ECM). The ECM is a microprocessor-based system that provides full range isochronous speed governing which controls the fuel injection pump output to maintain engine speed specified by the throttle position sensor.The ECM also provides a cold mode starting strategy, air to fuel ratio control for transient smoke limiting, automatic turbocharger boost pressure and rack position sensor calibration, engine protection and diagnostics.Engine Service Life
Engine efficiency and engine performance depend on adherence to proper operation and maintenance recommendations, and the use of recommended fuels, coolants and lubrication oils. Use the Maintenance Schedule as a guide for required engine maintenance. To minimize expenses and provide maximum utilization and performance of your engine, use the information provided, along with the proper fuels, coolants and lubricants as specified in the maintenance section of this manual.The overhaul interval can be expressed in terms of fuel consumption, service meter units/clock hours or years of operation. Expected engine life can generally be predicted by the average horsepower demanded of the engine over a period of time.Reduced hours of operation at full throttle and/or operating at reduced throttle settings result in lower average power demand and should increase the length of operating time before and engine overhaul is required.Serial Number, Information Plate Location and Reference Numbers
For quick reference, record the serial number in the space provided below.Serial Number Plate
Engine Serial Number ____________________The Serial Number Plate is located on the left side of the cylinder block.Information Plate
The 9L6531 Information Plate is located on the right hand side rear valve cover. The high idle rpm and the full load rpm are stamped on the Engine Information Plate.Reference Numbers
Fill in blanks for future reference. Engine Arrangement No. ____________________ Modification No. ____________________ Engine Low Idle rpm ____________________ Engine Full Load rpm ____________________ Performance Specification No. ____________________ ECM Part No. ____________________ Fuel Filter No. ____________________ Lubrication Oil Filter Element No. ____________________ Auxiliary Oil Filter Element No. ____________________ Supplemental Coolant Additive Maintenance Element No. ____________________ Supplemental Coolant Additive Precharge Element No. ____________________ Coolant Additive (Part No. & Quantity) ____________________ Air Cleaner Element No. ____________________ Lube System Capacity (Total) ____________________ Cooling System Capacity (Total) ____________________ Alternator Belt No. ____________________Engine Identification Numbers
Caterpillar engines are identified with serial numbers, fuel system setting numbers, performance specifications and arrangement numbers. In some cases modification numbers are also used. These numbers are shown on the serial number plate mounted on the engine.Caterpillar dealers need all of these numbers to determine which components were included on the engine when it was assembled at the factory. This permits accurate identification of replacement part numbers.Ordering Parts
Quality Caterpillar replacement parts are available from Caterpillar dealers throughout North America and the world. Their parts stocks are up to date