Land Rover 3 5 3 9 4 2 V8 Engine Overhaul 1996 Rover Manual
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ENGINE DESCRIPTION ANDOPERATION 3 CYLINDER BLOCKCOMPONENTS 1. Cylinder block 2. Piston andgudgeon pin 3. Connecting rod 4. Core plugs 5. Camshaft 6. Dipstick 7. Camshaft key 8. Timing chain 9. Camshaft sprocket 10. Spacer 11. Distributor drivegear 12. Distributor 13. Oilpump gears* 14. Timing coverandgasket * 15. Timing coveroilseal * 16. Crankshaft pulley 17. Crankshaft sprocket 18. Woodruff key 19. Crankshaft 20. Centre mainbearing shell-upper 21. Crankshaft rearoilseal 22. Rear mainbearing capand side...
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ENGINE 4DESCRIPTION ANDOPERATION CYLINDER HEADCOMPONENTS 1. Cylinder head 2. Rocker cover 3. PCV filter 4. Rocker shaft 5. Tappet 6. Pushrod 7. Rocker shaftbracket 8. Rocker arm 9. Rocker shaftspring 10. PCV airintake filter 11. Engine oilfiller cap 12. Inlet valve seal,spring, cap,andcollets 13. Exhaust valveseal,spring, capand collets 14. Inlet valve andseat 15. Exhaust valveandseat 16. Inlet manifold gasketandseals 17. Cylinder headgasket 18. Valve guide
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ENGINE DESCRIPTION ANDOPERATION 5 Operation TheV8engine isan eight cylinder, watercooled unit comprising ofcast aluminium cylinderblockand cylinder heads. The twobanks ofsteel cylinder linerswhich are pressed downtostops inthe cylinder block,areset at 900 toeach other. Thecrankshaft iscarried infive main bearings, end-floatbeingcontrolled bythe thrust facesofthe upper centre mainbearing shell. The centrally locatedcamshaft isdriven bythe crankshaft viaaninverted toothchain. Thevalves are operated...
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ENGINE 6DESCRIPTION ANDOPERATION Lubrication -Engine numbers withoutsuffixB 1.Oil strainer 2. Crankshaft mainbearing oilfeed 3. Oil pressure reliefvalve 4. Oil pump 5. Main gallery A Oiltocooler B Oilfrom cooler
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ENGINE DESCRIPTION ANDOPERATION 7 Lubrication -Engine numbers withsuffix B 1.Oil strainer 2. Oil pump 3. Pressure reliefvalve 4. Oil pressure switch 5. Main gallery A Oil tocooler B Oil from cooler Engine numbers withoutsuffixB The fullflow lubrication systemusesanexternal gear pump which isdriven bythe distributor drive shaft. Theoilpump gearsarehoused inthe timing cover andtheoilpressure reliefvalve andwarning light switch arefitted tothe oilpump cover. Engine numbers withsuffix B The fullflow...
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ENGINE 8DESCRIPTION ANDOPERATION Distributor driveandtiming chainlubrication 1.Bearing 2. Camshaft 3. Key 4. Camshaft timingchainsprocket 5. Spacer 6. Distributor drivegear The distributor driveandtiming chainarelubricated from thecamshaft frontbearing. Thefeed tothe timing chainischannelled alongthecamshaft sprocket, keyand spacer. Hydraulic tappets1.Clip 2. Pushrod seat 3. Inner sleeve 4. Upper chamber 5. Non-return ballvalve 6. Spring 7. Outer sleeve 8. Lower chamber -high pressure The purpose ofthe...
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ENGINEOVERHAUL 1 ROCKER SHAFTS Rocker shaft-remove 1. LH rocker shaftonly:Remove screwsecuring dipstick tubetorocker cover. 2.Remove 4screws securing rockercoverto cylinder head. NOTE:Markposition of2longer screws. 3. Remove rockercover. 4. Remove anddiscard gasketfromrocker cover. 5. Mark eachrocker shaftinrelation tooriginal cylinder head. CAUTION: Incorrectfitmentofrocker shafts willlead toan oilfeed restriction. 6.Progressively slackenandremove 4bolts securing rockershaftassembly tocylinder head. 7....
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ENGINE 2OVERHAUL Dismantle 1. Remove splitpinfrom oneendofrocker shaft. 2. Remove plainwasher, wavewasher, rocker arms, brackets andsprings. Inspect 1. Thoroughly cleancomponents. 2. Inspect eachcomponent forwear, inparticular rocker armsandshafts. Discard weakor broken springs. 3. Inspect pushrod seatsinrocker arms. 4. Check pushrods forstraightness andinspect ball ends fordamage, replaceasnecessary. Assembly 1. Assemble rockershaftswithidentification groove atone oclock position withpush rod end...
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ENGINEOVERHAUL 3 Rocker shaft-refit 1. Lubricate pushrods withengine oil. 2. Fitpushrods inremoved order. 3.Fiteach rocker shaftassembly, ensuring identification grooveisuppermost andtowards front ofengine onRH side andtowards rearof engine onLH side. CAUTION: Incorrectfitmentwillresult in an oilfeed restriction. 4. Fitbolts andtighten tocorrect torque. 5. Clean gasket surface inrocker coverusing Bostik cleaner 6001orequivalent, andallow to dry. 6. Apply athin coating ofBostik 1775or equivalent...
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ENGINE 4OVERHAUL CYLINDER HEAD Cylinder head-remove 1. Remove rockershaftassembly. 2. Mark heads LHand RHforreassembly. Engine numbers withoutsuffixB NOTE: RHcylinder headillustrated 3. Using sequence shown,remove 14bolts securing cylinderheadtocylinder block. Enginenumbers withsuffix B NOTE: RHcylinder headillustrated 4. Using sequence shown,remove anddiscard 10 bolts securing cylinderheadtocylinder block. NOTE: Nobolts arefitted inthe four lower holes ineach cylinder head. Allengines 5.Release...