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Perkins 4.108M User Manual

Perkins 4.108M
134 pages
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Table of Contents

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Perkins 4.108M Specifications

General IconGeneral
Engine Model4.108M
Compression Ratio22:1
Fuel SystemIndirect injection
Cooling SystemWater-cooled
AspirationNaturally aspirated
Engine TypeInline 4-cylinder
Displacement1.76 L (107.4 cu in)

Summary

Section B Technical Data

Engine Data

Core specifications like bore, stroke, number of cylinders, and compression ratio.

Recommended Torque Tensions

Specified torque values for critical engine fasteners and components.

Service Wear Limits

Maximum allowable wear for key engine parts during service.

Manufacturing Data and Dimensions

Detailed manufacturing dimensions for engine components like cylinder blocks and liners.

Crankshaft

Technical data and dimensions for the engine's crankshaft.

Main Bearings

Specifications and dimensions for main crankshaft bearings.

Cylinder Head

Technical data and dimensions for the cylinder head.

Lubricating Oil Pump

Specifications and data for the lubricating oil pump.

Lubricating Oil Filter

Details and specifications for the lubricating oil filter.

Cooling System

Overview of the engine cooling system.

Section C Operating and Maintenance

Preventive Maintenance

General guidelines for maintaining the engine's condition.

Section D Fault Finding

Fault Finding Chart

A chart listing common faults and their possible causes.

Key to Fault Finding Chart

Explanation of the codes and references used in the fault finding chart.

Section E Cylinder Head

To Remove the Cylinder Head

Step-by-step instructions for removing the cylinder head.

To Remove the Valves

Instructions for removing valves from the cylinder head.

To Dismantle the Rocker Shaft Assembly

Step-by-step instructions for dismantling the rocker shaft assembly.

To Re-Assemble the Rocker Shaft Assembly

Step-by-step instructions for re-assembling the rocker shaft assembly.

To Refit the Valves

Instructions for refitting the valves into the cylinder head.

Cylinder Head Gasket

Information and procedures for fitting the cylinder head gasket.

To Refit the Cylinder Head

Detailed steps for refitting the cylinder head.

Adjusting Valve Clearances

Procedure for checking and adjusting valve clearances.

Valve Adjusting Sequence

The correct sequence for adjusting engine valves.

Section F Pistons and Connecting Rods

To Remove Pistons and Connecting Rods

Step-by-step instructions for removing pistons and connecting rods.

To Remove Pistons and Rings from the Connecting Rods

Procedures for removing pistons and rings from connecting rods.

To Refit Pistons to Connecting Rods

Instructions for refitting pistons to connecting rods.

Fitting the Piston Rings

Detailed instructions on how to fit piston rings correctly.

To Fit Piston and Connecting Rod Assemblies

Procedures for fitting piston and connecting rod assemblies to the engine.

Fitting the Piston into the Cylinder Block

Steps for fitting pistons into the cylinder block.

Section G Cylinder Block and Liners

To Renew Cylinder Liners

Step-by-step instructions for renewing cylinder liners.

To Remove Liners

Instructions for removing cylinder liners from the block.

To Fit New Liners

Procedures for fitting new cylinder liners into the block.

Section H Crankshaft and Main Bearings

To Renew Main Bearings and Thrust Washers

Procedures for renewing main bearings and thrust washers.

To Remove the Crankshaft

Step-by-step instructions for removing the crankshaft.

Section J Timing Case and Drive

To Remove the Timing Case Cover

Steps for removing the timing case cover.

To Remove the Crankshaft Front Oil Seal

Procedure for removing the crankshaft front oil seal.

To Refit the Timing Case Cover

Instructions for refitting the timing case cover.

To Refit the Idler Gear and Hub

Procedures for refitting the idler gear and hub.

To Remove the Camshaft Gear

Steps for removing the camshaft gear.

To Remove the Fuel Pump Gear

Procedures for removing the fuel pump gear.

To Remove the Fuel Pump Drive Hub

Instructions for removing the fuel pump drive hub.

To Refit the Fuel Pump Drive Hub

Procedures for refitting the fuel pump drive hub.

To Remove the Timing Case Back Plate

Steps for removing the timing case back plate.

To Refit the Timing Case Back Plate

Instructions for refitting the timing case back plate.

To Remove the Camshaft and Tappets

Procedures for removing the camshaft and tappets.

To Refit the Tappets and Camshaft

Instructions for refitting tappets and the camshaft.

Section K Timing

Checking Fuel Pump Timing using Tool MS67B

Using a specific tool to check fuel pump timing.

Checking Timing Mark on Fuel Pump Mounting Flange

How to check timing marks on the fuel pump mounting flange.

Checking Marking Angle on Fuel Pump Flange

Checking the marking angle on the fuel pump flange.

Section L Lubricating System

Draining the Sump

Procedure for draining the engine oil sump.

Removing Lubricating Oil Pump

Step-by-step instructions for removing the lubricating oil pump.

To Refit the Oil Pump

Instructions for refitting the lubricating oil pump.

To Dismantle the Oil Pressure Relief Valve

Procedures for dismantling the oil pressure relief valve.

To Remove the Filter Element

Instructions for removing the oil filter element.

To Refit the Oil Filter Head Casing

Procedures for refitting the oil filter head casing.

Unscrew Screw Type Oil Filter Canister

Procedure for unscrewing the screw-type oil filter canister.

Section M Cooling System

To Remove Pump

Step-by-step instructions for removing the sea water pump.

Alignment of Sea Water Pump Adaptor Plate

How to align the sea water pump adaptor plate.

To Remove Water Pump

Instructions for removing the fresh water pump.

To Re-Assemble the Water Pump

Procedures for re-assembling the water pump.

To Refit the Water Pump

Instructions for refitting the water pump.

To Remove Thermostat

Instructions for removing the engine thermostat.

Section N Air Filter and Fuel System

To Renew the Filter Element

Steps for renewing the fuel filter element.

Pressure Testing of Fuel Lift Pump in Position

Procedure for testing the fuel lift pump's pressure.

To Re-Assemble the Lift Pump

Instructions for re-assembling the fuel lift pump.

To Refit the Lift Pump

Procedures for refitting the fuel lift pump.

Fuel Injection Pump

Details and specifications for the fuel injection pump.

To Remove the Fuel Injection Pump

Step-by-step instructions for removing the fuel injection pump.

To Refit the Injection Pump

Procedures for refitting the fuel injection pump.

Testing for Faulty Atomiser

Method for testing atomisers for faults.

Bleeding the Fuel System

Procedure for bleeding air from the fuel system.

Priming Procedure after Changing a Filter Element

Steps for priming after filter element replacement.

Section P Flywheel and Flywheel Housing

Alignment of the Adaptor Plate, Flywheel Housing and Flywheel

Procedures for aligning the adaptor plate, housing, and flywheel.

Alignment of the Adaptor Plate Face

How to align the face of the adaptor plate.

Checking Alignment of Flywheel Face

Method for checking the alignment of the flywheel face.

Alignment of Flywheel Housing Bore

Procedures for aligning the flywheel housing bore.

Checking Alignment of Flywheel Housing Face

How to check the alignment of the flywheel housing face.

Section Q Electrical System

Fault Finding on AC5

Troubleshooting guide for AC5 alternators.

Test 3: Checking or Adjusting the Voltage Setting

Procedure for checking and adjusting voltage output.

Fault Diagnosis for 11 AC Alternator Fails to Charge

Troubleshooting steps when the 11 AC alternator fails to charge.

Lubricating Oils

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