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Scania 9-Series User Manual

Scania 9-Series
74 pages
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program 96
©
Scania CV AB 1997-05:2
Issue 2
en
Part No.
1 588 468
Industrial & Marine Engines
01:01-02
Work Description - 9-series engine
Industrial and Marine engines
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Scania 9-Series Specifications

General IconGeneral
BrandScania
Model9-Series
CategoryEngine
LanguageEnglish

Summary

Cylinder head

Valve clearance

Describes how to check and adjust valve clearance for intake and exhaust valves when the engine is cold.

Compression

Details the use of a compression tester to check wear and damage in cylinder liners and piston rings.

Removing

Step-by-step instructions for removing the cylinder head from the engine block.

Dismantling

Procedures for dismantling the cylinder head, including valve removal and component inspection.

Checking, changing and machining

Procedures for checking, changing valve stem seals, and machining valves and valve seats.

Changing valve seats

Instructions for removing old valve seat rings and pressing in new ones using specialized tools.

Machining valve seats

Steps for machining valve seat rings using a valve seat cutter tool and ensuring correct alignment.

Rocker arms

Procedure for removing and fitting new bushings in rocker arms using specialized drifts.

Valve guides

Instructions for pressing out old valve guides and pressing in new ones using drive tools.

Checking and machining sealing surface

Checking the cylinder head for cracks and machining the sealing surface and sealing ring grooves.

Assembly

Steps for assembling cylinder head components, including valve train parts and fitting the cylinder head.

Fitting cylinder head

Procedures for fitting the cylinder head to the engine block, including bolt tightening sequences.

Special tools

Turbocharger

Special tools

Lists and illustrates specialized tools for turbocharger inspection and measurement.

General

Important notes on cleanliness, oil leakage, foreign bodies, and general care when working on the turbocharger.

Oil leakage

Describes causes and consequences of oil leakage in the turbocharger system and potential engine damage.

Foreign bodies

Explains the damage foreign bodies can cause to turbocharger vanes and the importance of avoiding them.

Air and exhaust leakage

Discusses the impact of air and exhaust leaks on charge pressure, engine temperature, and wear.

Charge pressure

Explains factors affecting charge pressure and notes that low pressure doesn't always mean a faulty turbocharger.

Cleaning compressor wheel

Instructions for cleaning the compressor wheel to resolve low charge pressure issues.

Measuring radial and axial clearance

Provides guidance on measuring radial and axial clearances to diagnose potential turbocharger defects.

Radial clearance

Detailed steps for measuring the radial clearance of the turbine and compressor wheels using a dial gauge.

Axial clearance

Instructions for measuring the axial clearance of the turbocharger shaft using a dial gauge.

Wear limits for Holset

Specifies the acceptable radial and axial clearance wear limits for Holset turbochargers.

If the turbocharger is not working

Troubleshooting steps to identify the cause of turbocharger malfunction, checking various engine systems.

Changing the turbocharger

Step-by-step instructions for removing and fitting a new turbocharger, including necessary gasket and filter changes.

Pistons and cylinder liners

Special tools

Lists and illustrates specialized tools for piston and cylinder liner servicing.

Removal of loose ring in cylinder liner

Procedure for removing a tightly fitted loose ring from a cylinder liner using specialized tools.

Removing and dismantling piston and connecting rod

Steps for removing pistons and connecting rods from the cylinder block, including piston cooling nozzles.

Removing piston rings

Instructions for removing piston rings using a piston ring compressor tool.

Removing gudgeon pin

Procedure for removing the gudgeon pin from the piston and connecting rod assembly using a drift.

Checking connecting rods

Methods for checking connecting rods for twist and bend using a specialized connecting rod tester.

Assembling piston and connecting rod

Step-by-step guide for assembling pistons and connecting rods, including fitting piston rings and gudgeon pins.

Removing cylinder liner

Instructions for marking and extracting cylinder liners from the engine block using a puller.

Measuring cylinder liner height

Procedure for measuring cylinder liner height relative to the cylinder block surface using a dial gauge.

Adjusting cylinder liner height

Guidance on adjusting cylinder liner height using shims, including machining if necessary.

Machining cylinder liner to desired height

Steps for machining cylinder liners to achieve the correct height using a specialized cutter tool.

Fitting cylinder liner

Instructions for checking, lubricating, and fitting cylinder liners into the engine block, ensuring correct orientation.

Fitting piston and connecting rod

Steps for fitting pistons and connecting rods into the cylinder block, including bearing cap installation and tightening.

Flywheel and flywheel housing

Special tools

Lists and illustrates specialized tools for flywheel and flywheel housing assembly and removal.

Removing flywheel

Procedure for removing the flywheel from the crankshaft using puller bolts.

Changing the support bearing

Instructions for removing and fitting the support bearing in the flywheel using a drift.

Changing the ring gear

Steps for removing a worn ring gear and fitting a new one by heating and mounting.

Changing crankshaft seal

Procedure for changing the crankshaft seal using specialized assembly tools.

Removing and fitting flywheel housing

Instructions for removing the flywheel housing, cleaning surfaces, and fitting a new gasket.

Fitting flywheel housing

Steps for fitting the flywheel housing, tightening bolts in sequence, and fitting a new crankshaft seal.

Fitting flywheel

Procedure for fitting the flywheel onto the crankshaft, using guide pins and tightening bolts to specified torque.

Timing gear

Special tools

Lists and illustrates specialized tools for timing gear assembly and removal.

Crankshaft seal

Removing

Steps for removing the crankshaft seal, including damper, pulley, and hub removal.

Fitting

Instructions for fitting a new crankshaft seal using assembly tools and degreasing the crankshaft.

Timing gear cover

Removing

Steps for removing components obstructing access to the timing gear cover and removing the cover.

Fitting

Instructions for fitting the timing gear cover, including cleaning surfaces, gasket, and bolt tightening.

Intermediate gear

Removing

Steps for removing the intermediate gear, including timing gear cover and oil catcher removal.

Fitting

Instructions for fitting the intermediate gear and thrust bearings, ensuring correct alignment and bolt tightening.

Crankshaft gear

Removing

Steps for removing the crankshaft gear, including intermediate gear and oil pump gear removal.

Fitting

Instructions for fitting the crankshaft gear, including heating, key placement, and intermediate gear fitting.

Camshaft gear

Removing

Steps for removing the camshaft gear, including timing gear cover and intermediate gear removal.

Fitting

Instructions for fitting the camshaft gear, including heating, key placement, and intermediate gear fitting.

Camshaft

Removing

Steps for removing the camshaft, including rocker arms, pushrods, side covers, and intermediate gear.

Fitting

Instructions for fitting the camshaft, including lubrication, guide flange bolts, and rocker arm fitting.

Changing valve tappets

Procedure for removing and fitting valve tappets and their retaining rings.

Camshaft bearings

Notes on checking camshaft bearings for wear and fitting new bearings with correct oilway alignment.

Checking camshaft setting

Method for checking camshaft timing by measuring valve lifting height using dial gauges.

Crankshaft

Removing

Steps for removing the crankshaft, including main bearing caps, halves, and thrust washers.

Checking and grinding

Procedure for measuring crankshaft journals for wear and considering regrinding or replacement.

Fitting

Instructions for fitting the crankshaft, including cleaning oilways, lubricating bearings, and tightening cap bolts.

Lubrication system

Oil cooler

Diagram and parts list for the oil cooler and instructions for changing seals and the cooling element.

Changing seals and oil cooler element

Steps for removing the drive belt, draining coolant, and detaching the oil cooler and coolant pump.

Oil cleaner

Dismantling and assembly

Instructions for dismantling the oil cleaner rotor, cleaning the bowl, and checking components.

Lifting the engine

Special tools

Lists and illustrates specialized tools for lifting the engine, including lifting chain and lever block.

Specifications

General Engine Information

Provides general engine specifications such as cylinder configuration, bore, stroke, and firing order.

Locking compounds and lubricants

Lists various compounds used for assembly, including part numbers and applications.

Cylinder head specifications

Specifications for cylinder head machining, height, and valve head angle.

Valve specifications

Combines intake/exhaust valve clearance, head angle, min dimension, valve seat specs, valve guide specs, rocker arm specs.

Tightening torques

Lists tightening torques for cylinder head bolts, injector nuts, rocker arms, and exhaust manifolds.

Turbocharger wear limits

Wear limits for radial and axial shaft clearance for the turbocharger.

Piston and cylinder liner specifications

Specifications for cylinder liner shims, height, and maximum permitted height difference.

Piston and connecting rod specifications

Piston orientation, rings, and connecting rod markings for correct assembly.

Flywheel and housing specifications

Housing seal, timing gear, camshaft gear, injection pump gear, intermediate gear, PTO gear, camshaft clearances.

Crankshaft specifications

Specifications for main bearing races, big-end bearing journals, and thrust bearings.

Lubrication system specifications

Specifications for oil pump backlash, oil pressure valve, oil cleaner deposits, and oil filter.

Tightening torques

Lists tightening torques for oil pump cover, oil pump to block bolts, and oil cleaner locknut.

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