Table of Contents
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Table of Contents
Related Manuals for Volvo Penta TAD731
Summarization of Contents
Introduction and Safety
Manual Overview and Safety Precautions
Overview of the manual and essential safety measures for engine operation.
General Information
Manual Scope and Standards
Details about the manual's scope, intended audience, and power standards.
Parts and Certification Requirements
Guidelines on using genuine parts and maintaining engine certifications.
Repair Instructions and Responsibilities
Repair Methods and Joint Responsibility
Repair guidelines, cleanliness standards, and shared responsibility for engine performance.
Tightening Torques and Fasteners
General Torques, Lock Nuts, and Strength
General tightening torques for standard screws and advice on lock nuts.
Angle Tightening Procedures
Methods for angle tightening procedures using a protractor.
Sealants and Fluorocarbon Rubber Safety
Sealant Types and Application
Details on RTV and anaerobic sealants and their application methods.
Fluorocarbon Rubber Handling Precautions
Safety precautions when handling fluorocarbon rubber due to hazardous fumes.
Identification Plates (420-620, 520-722)
Plate Information Details
Numbering and description of data found on engine identification plates.
Identification Plates (650/660, 750/760)
Plate Information Details
Numbering and description of data found on engine identification plates.
Technical Data: TD/TAD420-660VE
General Engine Specifications
General technical data for TD/TAD420-660VE engine series.
Engine Block Components (TD/TAD420-660VE)
Cylinder Head and Bolt Specifications
Technical data for cylinder head and head bolt specifications.
Cylinder Liners (TD/TAD420-660VE)
Parent Bore and Replaceable Liner Specs
Specifications for parent bore and replaceable, dry type cylinder liners.
Cylinder Head Gasket (TD/TAD420-660VE)
Piston Projection Measurement
Method for measuring piston projection to determine head gasket thickness.
Gasket Identification
Identification markings for different cylinder head gasket thicknesses.
Piston Assemblies (TD/TAD420-660VE)
Piston, Ring, and Scraper Ring Specs
Specifications for pistons, rings, including clearance and gap limits.
Valve Mechanism (TD/TAD420-660VE)
Valve and Seat Specifications
Specifications for valves, seat angles, disc edge, and seat width.
Valve Clearance
Valve clearance specifications for specific engine models.
Valve Seats, Guides, and Springs
Valve Seat and Guide Dimensions
Dimensions and wear limits for valve seats and guides.
Valve Spring Specifications
Specifications for valve spring type, length, and wire diameter.
Camshaft, Timing Gear, and Flywheel
Camshaft and Timing Gear Details
Camshaft specs, bearings, clearances, and timing gear components.
Flywheel Specifications
Flywheel type, runout, and tooth count details.
Crankshaft and Main Bearings
Crankshaft Dimensions and Tolerances
Length, clearances, ovality, and run-out of crankshaft.
Main Bearing Journals and Shells
Dimensions and specifications for main bearing journals and shells.
Thrust Washers
Width and oversize specifications for thrust washers.
Connecting Rod Bearing Journals and Shells
Journal and Shell Dimensions
Diameter, width, and tolerances for journals and shells.
Connecting Rods: Dimensions and Tolerances
Rod and Bush Dimensions
Length, bushing bore, and bush replacement specs for connecting rods.
Rod Tolerances and Markings
Axial clearance, radial clearance, parallelism, squareness, and marking guidelines.
Lubricating System
Oil Grade and Viscosity Recommendations
Recommended oil grades based on fuel sulfur content and viscosity based on temperature.
Engine Oil System Details
Oil Quantities and Pressure Specifications
Engine oil capacities and required oil pressure specifications.
Lubrication System Components
Details on oil pump, filter, cooler, and other lubrication parts.
Fuel System (420, 620)
Fuel System Component Identification
Identification and basic specs of fuel system parts like tank, pump, filter.
Fuel Specification and Feed Pump
Fuel Standards and Pump Specs
Fuel approval standards and specifications for the fuel feed pump.
Injection Pump and Injectors
Injection Pump Measurements
Basic measurements, tolerances, and specifications for injection pumps.
Injector Specifications
Opening pressure, max pressure, leakage, and bore specs for injectors.
Fuel Filter and Pre-filter Sizes
Filtering sizes for fuel filters and pre-filters.
Commencement of Delivery (FB) 420/620
Delivery Commencement Table
Table correlating FB, camshaft types, Vh, and Lo for delivery commencement.
Shim Thickness Calculation (420/620)
Shim Thickness Conversion Table
Table to convert theoretical shim thickness to actual shim thickness.
Using EP Code for Shims (420/620)
EP Code Conversion Table
Table for converting EP codes to Ex values for shim calculation.
Governor and Control Rod (420/620)
Governor Specifications
Details on governor manufacturer, designation, and speed droop.
Control Rod Specifications
Travel and recess dimension specs for the control rod.
Intake, Exhaust, and Cooling Systems
Intake and Exhaust System Details
Turbocharger specs, exhaust temps, and air intake restrictions.
Cooling System Components
Details on cooling system type, capacity, thermostat, pump, and coolant.
Tightening Torques - Engine Components
General and Engine Mounting Torques
General screw torques and specific torques for engine mounting components.
Bearing and Flywheel Torques
Tightening torques for main bearings, connecting rods, and flywheel.
Accessory and Component Torques
Tightening torques for V-belt pulley, vibration damper, and rocker components.
Tightening Torques - System Components
Cylinder Head and Oil System Torques
Torques for cylinder head, oil cooler, pump housing, sump, and pipes.
Fuel System and Common Rail Torques
Torques for fuel system components, common rail, IEGR, and pumps.
Tightening Torques - Inlet, Exhaust, and Cooling
Inlet and Exhaust System Torques
Torques for exhaust and inlet manifold fasteners, and turbo connections.
Cooling System Torques
Tightening torques for thermostat housing, water temp sensor, and water pump.
Technical Data: TD/TAD520, TAD530/531/532
General Engine Specifications
General technical data for TD/TAD520-532 engine series.
Cylinder Liners and Engine Block (TD/TAD520, TAD530/531/532)
Cylinder Liner Specifications
Specifications for replaceable, wet type cylinder liners.
Cylinder Head and Bolts
Technical data for cylinder head and head bolt specifications.
Cylinder Head Gasket Measurement (TD/TAD520, TAD530/531/532)
Piston Projection and Gasket ID
Method for piston projection measurement and gasket thickness identification.
Piston Assemblies (TD/TAD520, TAD530/531/532)
Piston and Ring Specifications
Specifications for pistons, rings, including clearance and gap limits.
Oil Scraper Ring Details
Details on the oil scraper ring specifications.
Valve Mechanism Details (TD/TAD520, TAD530/531/532)
Valve and Seat Specifications
Specifications for valves, seat angles, disc edge, and seat width.
Valve Clearance
Valve clearance specifications for specific engine models.
Valve Seats, Guides, and Springs (TD/TAD520, TAD530/531/532)
Valve Seat and Guide Dimensions
Dimensions and wear limits for valve seats and guides.
Valve Spring Specifications
Specifications for valve spring type, length, and wire diameter.
Camshaft, Timing Gear, and Flywheel (TD/TAD520, TAD530/531/532)
Camshaft and Timing Gear Details
Camshaft specs, bearings, clearances, and timing gear components.
Flywheel Specifications
Flywheel type, runout, and tooth count details.
Crankshaft and Main Bearings (TD/TAD520, TAD530/531/532)
Crankshaft Dimensions and Tolerances
Length, clearances, ovality, and run-out of crankshaft.
Main Bearing Journals and Shells
Dimensions and specifications for main bearing journals and shells.
Thrust Washers
Width and oversize specifications for thrust washers.
Connecting Rod Bearing Journals and Shells (TD/TAD520, TAD530/531/532)
Journal and Shell Dimensions
Diameter, width, and tolerances for journals and shells.
Connecting Rods: Dimensions and Tolerances (TD/TAD520, TAD530/531/532)
Rod and Bush Dimensions
Length, bushing bore, and bush replacement specs for connecting rods.
Rod Tolerances and Markings
Axial clearance, radial clearance, parallelism, squareness, and marking guidelines.
Lubricating System (TD/TAD520, TAD530/531/532)
Oil Grade and Viscosity Recommendations
Recommended oil grades based on fuel sulfur content and viscosity based on temperature.
Engine Oil System Details (TD/TAD520, TAD530/531/532)
Oil Quantities and Pressure Specifications
Engine oil capacities and required oil pressure specifications.
Lubrication System Components
Details on oil pump, filter, cooler, and other lubrication parts.
Fuel System (TD/TAD520, TAD530/531/532)
Fuel System Component Identification
Identification and basic specs of fuel system parts like tank, pump, filter.
Fuel Specification and Feed Pump (TD/TAD520, TAD530/531/532)
Fuel Standards and Pump Specs
Fuel approval standards and specifications for the fuel feed pump.
Injection Pump and Injectors (TD/TAD520, TAD530/531/532)
Injection Pump Measurements
Basic measurements, tolerances, and specifications for injection pumps.
Injector Specifications
Opening pressure, max pressure, leakage, and bore specs for injectors.
Fuel Filter and Pre-filter Sizes
Filtering sizes for fuel filters and pre-filters.
Commencement of Delivery (FB) (TD/TAD520, TAD530/531/532)
Delivery Commencement Table
Table correlating FB, camshaft types, Vh, and Lo for delivery commencement.
Shim Thickness Calculation (TD/TAD520, TAD530/531/532)
Shim Thickness Conversion Table
Table to convert theoretical shim thickness to actual shim thickness.
Using EP Code for Shims (TD/TAD520, TAD530/531/532)
EP Code Conversion Table
Table for converting EP codes to Ex values for shim calculation.
Governor and Control Rod (TD/TAD520, TAD530/531/532)
Governor Specifications
Details on governor manufacturer, designation, and speed droop.
Control Rod Specifications
Travel and recess dimension specs for the control rod.
Intake, Exhaust, and Cooling Systems (TD/TAD520, TAD530/531/532)
Intake and Exhaust System Details
Turbocharger specs, exhaust temps, and air intake restrictions.
Cooling System Components
Details on cooling system type, capacity, thermostat, pump, and coolant.
Tightening Torques - TD/TAD520, TAD530/531/532
General and Engine Component Torques
General screw torques and specific torques for engine mounting and components.
System Component Torques
Torques for oil, fuel, common rail, IEGR, and pump systems.
Tightening Torques - TD/TAD520, TAD530/531/532 (Cont.)
Inlet, Exhaust, and Cooling System Torques
Torques for manifold, turbo, thermostat, sensor, and pump fasteners.
Technical Data: TD/TAD720-722, TAD730/733, TAD750/760
General Engine Specifications
General technical data for TD/TAD720-760 engine series.
Cylinder Liners and Engine Block (TD/TAD720-760)
Cylinder Liner Specifications
Specifications for replaceable, wet type cylinder liners.
Cylinder Head and Bolts
Technical data for cylinder head and head bolt specifications.
Cylinder Head Gasket Measurement (TD/TAD720-760)
Piston Projection and Gasket ID
Method for piston projection measurement and gasket thickness identification.
Piston Assemblies (TD/TAD720-760)
Piston and Ring Specifications
Specifications for pistons, rings, including clearance and gap limits.
Oil Scraper Ring Details
Details on the oil scraper ring specifications.
Valve Mechanism Details (TD/TAD720-760)
Valve and Seat Specifications
Specifications for valves, seat angles, disc edge, and seat width.
Valve Clearance
Valve clearance specifications for specific engine models.
Valve Seats, Guides, and Springs (TD/TAD720-760)
Valve Seat and Guide Dimensions
Dimensions and wear limits for valve seats and guides.
Valve Spring Specifications
Specifications for valve spring type, length, and wire diameter.
Camshaft, Timing Gear, and Flywheel (TD/TAD720-760)
Camshaft and Timing Gear Details
Camshaft specs, bearings, clearances, and timing gear components.
Flywheel Specifications
Flywheel type, runout, and tooth count details.
Crankshaft and Main Bearings (TD/TAD720-760)
Crankshaft Dimensions and Tolerances
Length, clearances, ovality, and run-out of crankshaft.
Main Bearing Journals and Shells
Dimensions and specifications for main bearing journals and shells.
Thrust Washers
Width and oversize specifications for thrust washers.
Connecting Rod Bearing Journals and Shells (TD/TAD720-760)
Journal and Shell Dimensions
Diameter, width, and tolerances for journals and shells.
Connecting Rods: Dimensions and Tolerances (TD/TAD720-760)
Rod and Bush Dimensions
Length, bushing bore, and bush replacement specs for connecting rods.
Rod Tolerances and Markings
Axial clearance, radial clearance, parallelism, squareness, and marking guidelines.
Lubricating System (TD/TAD720-760)
Oil Grade and Viscosity Recommendations
Recommended oil grades based on fuel sulfur content and viscosity based on temperature.
Engine Oil System Details (TD/TAD720-760)
Oil Quantities and Pressure Specifications
Engine oil capacities and required oil pressure specifications.
Lubrication System Components
Details on oil pump, filter, cooler, and other lubrication parts.
Fuel System (720–733)
Fuel System Component Identification
Identification and basic specs of fuel system parts like tank, pump, filter.
Fuel Specification and Feed Pump (TD/TAD720-760)
Fuel Standards and Pump Specs
Fuel approval standards and specifications for the fuel feed pump.
Injection Pump and Injectors (TD/TAD720-760)
Injection Pump Measurements
Basic measurements, tolerances, and specifications for injection pumps.
Injector Specifications
Opening pressure, max pressure, leakage, and bore specs for injectors.
Fuel Filter and Pre-filter Sizes
Filtering sizes for fuel filters and pre-filters.
Commencement of Delivery (FB) (720–733)
Delivery Commencement Table
Table correlating FB, camshaft types, Vh, and Lo for delivery commencement.
Shim Thickness Calculation (720–733)
Shim Thickness Conversion Table
Table to convert theoretical shim thickness to actual shim thickness.
Using EP Code for Shims (720–733)
EP Code Conversion Table
Table for converting EP codes to Ex values for shim calculation.
Governor and Control Rod (720–733)
Governor Specifications
Details on governor manufacturer, designation, and speed droop.
Control Rod Specifications
Travel and recess dimension specs for the control rod.
Intake, Exhaust, and Cooling Systems (TD/TAD720-760)
Intake and Exhaust System Details
Turbocharger specs, exhaust temps, and air intake restrictions.
Cooling System Components
Details on cooling system type, capacity, thermostat, pump, and coolant.
Tightening Torques - TD/TAD720-760
General and Engine Component Torques
General screw torques and specific torques for engine mounting and components.
System Component Torques
Torques for oil, fuel, common rail, IEGR, and pump systems.
Tightening Torques - TD/TAD720-760 (Cont.)
Inlet, Exhaust, and Cooling System Torques
Torques for manifold, turbo, thermostat, sensor, and pump fasteners.
Tightening Torque Diagrams
Main Bearing Cap and Connecting Rod Diagrams
Torque and angle tightening diagrams for main bearing caps and connecting rods.
Flywheel and V-belt Pulley Torques
Flywheel Tightening Procedures
Torque and angle tightening procedures for flywheel screws.
V-belt Pulley and Vibration Damper Torques
Tightening torques for V-belt pulley screws and vibration damper.
Cylinder Head and Injection Pump Tightening
Head Screw Torque Sequence
Torque and angle tightening sequence for cylinder head screws.
Injection Pump Flange Torques
Torque specifications and procedure for injection pump flange screws.
Delivery Pipe and Screw Plug Torques
Delivery Pipe Tightening
Tightening specifications for delivery pipes and warning about reuse.
Screw Plug Torque Values
Torque values for various screw plugs on the engine block.
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