3054 Engine Caterpillar


General Information

Usage:

554 1AM
The engine is a diesel engine which is controlled with a mechanically actuated fuel injection pump. The four engine cylinders are arranged in-line.

The cylinder head assembly has one inlet valve and one exhaust valve for each cylinder. The ports for the inlet and the exhaust valves are on the right side of the cylinder head. Each cylinder valve has a single valve spring. Each cylinder has a piston cooling jet that is installed in the cylinder block. The piston cooling jet sprays engine oil onto the inner surface of the piston in order to cool the piston.

The pistons have a Fastram combustion chamber in the top of the piston in order to provide an efficient mix of fuel and air. The piston pin is off-center in order to reduce the noise level.

The pistons have two compression rings and an oil control ring. The groove for the top ring has a hard metal insert in order to reduce wear of the groove. The skirt has a layer of graphite in order to reduce wear.

The correct piston height is important in order to ensure that the piston does not contact the cylinder head. The correct piston height also ensures the efficient combustion of fuel which is necessary in order to conform to requirements for emissions.

A piston and connecting rod are matched to each cylinder. The piston height is controlled by the length of the connecting rod. Seven different lengths of connecting rods are available in order to attain the correct piston height. The different lengths of connecting rods are made by machining the small end bearing off-center in order to form an eccentric bearing. The amount of the eccentricity of the bearing creates the different lengths of the connecting rods. Two heights of pistons are available in order to attain the correct piston height. The piston heights match specific lengths of pistons.

Note: Always refer to the engine identification number in order to get the correct new parts.

The crankshaft has five main journals. End play is controlled by thrust washers which are located on both sides of the center main bearing.

The timing case is made of aluminum. The timing gears are stamped with timing marks in order to ensure the correct assembly of the gears. When the number 1 piston is at the top center position on the compression stroke, the marked teeth of the following components will match the marks that are on the idler gear: crankshaft, camshaft and fuel injection pump. There is no timing mark on the rear face of the timing case.

The crankshaft gear turns the idler gear which then turns the following gears:

  • the camshaft gear

  • the fuel injection pump

  • a lower idler gear which turns the gear of the lubricating oil pump

The camshaft and the fuel injection pump run at half the rpm of the crankshaft.

The cylinder block provides support for the full length of the dry cylinder liners. The cylinder liners are a press fitted part. The cylinder liners are pressed into the cylinder block. The cylinder liners have a flame ring above the flange.

Either a Delphi DP 200 Series fuel injection pump is installed on the engine, or a Stanadyne fuel injection pump is installed on the engine. Both pumps conform to requirements for emissions. Both the pump timing and the high idle are preset at the factory. Adjustments to the pump timing and high idle should only be made by personnel which have had the correct training. The fuel injection pumps have mechanical governors in order to control the engine rpm.

Coolant from the bottom of the radiator passes through the centrifugal water pump. The pump is driven by a gear. The gear of the pump is driven by the gear of the fuel injection pump.

If equipped, an air compressor is located on the left side of the engine. The air compressor is mounted directly to the rear face of the timing case. The air compressor is driven by the main idler gear through an idler gear for the compressor. The cylinder head of the air compressor is cooled by coolant from the engine. The air compressor is lubricated by the lubrication system of the engine.


NOTICE

Failure to follow recommended procedures for handling or transporting engines can lead to engine damage.

To avoid possible engine damage, use the following procedure.


When you are lifting or moving the engine, use the following procedures in order to prevent engine damage.

  1. Do not tilt the engine to an extreme angle unless the lubricating oil is first drained from the oil pan.

  2. Do not turn the engine onto a side or an end surface unless the lubricating oil is first drained from the oil pan.

  3. If the oil is not drained prior to tilting the engine or turning the engine onto a side or an end surface, the lubricating oil from the oil pan can enter the closed crankcase breather system and flow into the intake manifold and the cylinder bores. This situation could cause an hydraulic lock in the engine. Hydraulic lock can damage the engine.

  4. The engine oil should be refilled to the correct level before the engine is started.

Engine And Components

Left Front View



Illustration 1g00620090
(1) Valve cover
(2) Water temperature regulator housing
(3) Engine oil filler cap
(4) Fuel injection nozzle
(5) Fuel filter
(6) Engine oil cooler
(7) Fan drive housing
(8) Water pump
(9) Fuel injection pump
(10) Crankshaft pulley
(11) Engine oil level gauge
(12) Engine oil filter

Right Rear View



Illustration 2g00620091
(13) Air inlet heater
(14) Alternator
(15) Wastegate
(16) Turbocharger
(17) Turbocharger oil supply
(18) Turbocharger oil return
(19) Fuel transfer pump
(20) Starter motor
(21) Oil pan
(22) Flywheel
(23) Flywheel housing

Engine Serial Numbers

Type 1 Engines and 9RM Engines

Note: For a complete description of Type 1 and Type 2 engines, refer to the Systems Operation, Testing and Adjusting Module, "Engine Design" for more information.



Illustration 3g00296495
Engine serial number location for Type 1 engines and 9RM engines
(1) Engine Serial Number Plate

The engine serial number is located on the left side of the cylinder block.

Type 2 Engines and 7BJ Engines

Note: For a complete description of Type 1 and Type 2 engines, refer to the Systems Operation, Testing and Adjusting Module, "Engine Design" for more information.



Illustration 4g00296496
Engine serial number location for Type 2 engines and 7BJ engines
(1) Engine Serial Number Plate

The engine serial number is located on the left side of the cylinder block.

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