LU - The Nissan Path
Contents
1. Revision May 2008 LU 6 2008 Pathfinder LUBRICATION SYSTEM lt FUNCTION DIAGNOSIS gt VQ40DE FUNCTION DIAGNOSIS LUBRICATION SYSTEM L u b ri catio n Ci rcu it INFOID 0000000001282176 LU Intake camshaft journal No 2 Camshaft INT Camshaft EXH Cylinder head Oz Timing chain tensioner secondary oil gallery left bank n n et i gt lu we Exhaust camshaft journal No 1 a Intake valve timing control GH solenoid valve Camshaft bracket No 1 Intake valve timing controller Main oil gallery Intake valve timing control cover Timing chain case Piston oil jet Timing chain tensioner primary Timing chain oil jet Timing chain case DI oil gallery Ze Oil pump Engine front Oil strainer Oil pan Oil cooler Oil filter PBIC2821E Syste m C h a rt INFOID 0000000001282177 Oil strainer V Oil pan SE i Main oil gallery 7 Oil pump Regulator valve Oil passage 4 To oil pan Bypass Oil cooler Relief valve zz Return oil passage Oil injection Oil filter Relief valve Built into oil filter I Timing chain Main oil gallery oil jet II Intake camshaft Exhaust camshaft Timing chain journal No 2 journal No 1 tensioner Crankshaft secondary Timing chain tensioner primary Connecting rod ji Camshatt oll il Intake valve timing ig passage I control solenoid valve ij Intake camshaft Exhaust camshaft journal N2. Tool number ST25051001 J 25695 1 T25052000 J 25695 2 WBIA0571E 6 Start the engine and warm it up to normal operating temperature 7 Check the engine oil pressure with engine running under no load Engine oil pressure Engine oil temperature at 80 C 175 F Unit kPa kg cm psi Engine Speed Approximate Discharge Pressure Idle speed More than 98 1 0 14 2 000 rpm More than 294 3 0 43 CAUTION If the difference is extreme check the oil passages and oil pump for leaks and blockages 8 After the inspections install oil pressure switch as follows a Remove old liquid gasket adhering to oil pressure switch and engine b Apply liquid gasket and tighten oil pressure switch to the specification Use Genuine RTV Silicone Sealant or equivalent Refer to Gl 26 Recommended Chemical Prod ucts and Sealants Oil pressure switch torque 14 7 N m 1 5 kg m 11 ft lb c After warming up engine make sure there is no leakage of engine oil with engine running Changing Engine Oil INFO1D 0000000001308889 WARNING Be careful not to burn yourself as the engine and engine oil may be hot Prolonged and repeated contact with used engine oil may cause skin cancer try to avoid direct skin contact with used oil If skin contact is made wash thoroughly with soap or hand cleaner as soon as possible Warm up the engine and check for any oil leaks Stop the engine and wait for at least 10 minutes
3. Inspect relief valve for movement cracks and breaks by pushing the ball If replacement is necessary remove the valve by prying it out using a suitable tool Install a new valve in place by tapping it in INSTALLATION Installation is in the reverse order of removal paying attention to the following e Confirm that no foreign objects are adhering to the sealing sur faces of the oil cooler and oil pan e Tighten the connecting bolt after aligning the stopper on the oil pan side with protrusion of the oil cooler ooo Align the protrusion and the stopper KBIA2500E Connector bolt Oil cooler INSPECTION AFTER INSTALLATION 1 Check engine oil and engine coolant levels and add engine oil and engine coolant Refer to LU 24 Inspection and CO 39 System Inspection 2 Start the engine and check for leaks of engine oil or engine coolant Stop the engine and wait for 10 minutes 4 Check the engine oil level and engine coolant level again Refer to LU 24 Inspection and CO 39 Sys tem Inspection Di Revision May 2008 LU 29 2008 Pathfinder OIL PUMP OIL PUMP Exploded View INFOID 0000000001897712 SEC 135 A Lubricate with new engine oil ei N m kg m in lb 0 11 0 1 1 8 O N m kg m ft Ib F 53 9 5 5 40 WBIA0415E 1 Oil pump body 2 Outer rotor 3 Inner rotor 4 Oil pump cover 5 Oil pump drive spacer 6 Regulator valve 7 Regulator spring 8 Regulator plug Removal and Installation INFOI
4. 3 Water pipe 4 Oil pan upper front side 5 O ring 6 Relief valve 7 Oil cooler 8 Oil filter 9 Connector bolt Removal and Installation INFO10 0000000001282181 WARNING Be careful not to burn yourself as the engine oil and engine coolant may be hot CAUTION Do not spill engine coolant on the drive belt Do not spill engine oil on rubber parts such as drive belts and engine mounting insulator REMOVAL NOTE When removing oil cooler only step 1 is unnecessary 1 Drain engine coolant from radiator and cylinder block Refer to CO 12 Changing Engine Coolant and EM 108 Disassembly and Assembly NOTE Perform this step only when removing water pipes and hoses 2 Disconnect water hoses from oil cooler pinching hoses near oil cooler to prevent engine coolant from spilling CAUTION Perform this step when engine is cold Revision May 2008 LU 12 2008 Pathfinder OIL COOLER 3 Remove oil filter Refer to LU 11 Removal and Installation 4 Remove connector bolt and remove oil cooler INSPECTION AFTER REMOVAL Oil Cooler Check oil cooler for cracks Check oil cooler for clogging by blowing compressed air through engine coolant inlet If necessary replace oil cooler assembly Relief Valve Check relief valve for movement cracks and breaks by pushing the ball If replacement is necessary remove relief valve by prying it out using a suitable tool Install a new relief valve in place by tapping it in
5. INSTALLATION Installation is in the reverse order of removal paying attention to the following e Confirm that no foreign objects are adhering to the sealing sur faces of the oil cooler and oil pan upper e Tighten connector bolt after aligning cutout on oil cooler with pro trusion on oil pan upper side Protrusion Oil cooler PBIC2825E INSPECTION AFTER INSTALLATION 1 Check engine oil and engine coolant levels and add engine oil and engine coolant Refer to LU 8 Inspection and CO 11 System Inspection 2 Start the engine and check for leaks of engine oil or engine coolant Stop engine and wait for 10 minutes 4 Check the engine oil level and the engine coolant level again Refer to LU 8 Inspection and CO 11 System Inspection Di Revision May 2008 LU 13 2008 Pathfinder OIL PUMP OIL PUMP Exploded View INFOID 0000000001897710 SEC 150 fy 6 9 0 7 61 FI Lubricate with new engine oil ei Nem kg m in Ib DI Nem kom ID PBIC2826E 1 Oil pump body 2 Oil pump outer rotor 3 Oil pump inner rotor 4 Oil pump cover 5 Regulator valve plug 6 Regulator valve spring 7 Regulator valve spring 8 Regulator valve Removal and Installation INFOID 0000000001282182 REMOVAL 1 Remove oil pans lower and upper Refer to EM 36 Removal and Installation 2 Remove front timing chain case and timing chain primary Refer to EM 63 Removal and Installation 3 Remove the oil pu
6. KV10111100 J 37228 gt a 0 fr CAUTION Pa SEN Do not damage the mating surfaces ee Tap 1 the Tool to insert it ta D O slide In areas where the Tool is difficult to use lightly tap to slide 2 it Tap WBIA0566E LIQUID GASKET APPLICATION PROCEDURE 1 Remove the old liquid gasket adhering to the gasket application surface and the mating surface using suitable tool e Remove the liquid gasket completely from the groove of the liquid gasket application surface bolts and bolt holes 2 Thoroughly clean the mating surfaces and remove adhering moisture grease and foreign material PBICOO03E Revision May 2008 LU 3 2008 Pathfinder PRECAUTIONS lt PRECAUTION gt VQ40DE 3 Attach the liquid gasket tube to the Tool Tool number WS39930000 Use Genuine RTV Silicone Sealant or equivalent Refer to Gl 26 Recommended Chemical Products and Sealants 4 Apply the liquid gasket without breaks to the specified location with the specified dimensions WBIA0567E If there is a groove for the liquid gasket application apply the cy Inner liquid gasket to the groove side As for the bolt holes normally apply the liquid gasket inside the holes If specified in the procedure it should also be applied outside the holes Within five minutes of liquid gasket application install the mat ing component If the liquid gasket protrudes wipe it off im
7. Remove the oil drain plug and oil filler cap to drain the old oil Install a new washer on the oil drain plug then install the oil drain plug in the oil pan Pon gt Oil drain plug Refer to EM 175 Removal and Installation CAUTION Clean the drain plug and install with a new washer 5 Refill the engine with new specified engine oil Oil grade and viscosity Refer to MA 10 Fluids and Lubricants Oil capacity Refer to MA 10 Fluids and Lubricants CAUTION The refill capacity depends on the oil temperature and drain time Use the Refill oil capacity val ues as a reference and check the oil level using the dipstick when filling the engine with oil 6 Warm up the engine and check the area around the drain plug and oil filter for any oil leaks 7 Stop the engine and wait for more than 10 minutes Revision May 2008 LU 25 2008 Pathfinder ENGINE OIL lt ON VEHICLE MAINTENANCE gt VKS6DE 8 Check the oil level using the dipstick as shown Add oil as nec essary and install the oil filler cap Refer to LU 24 Inspection CAUTION Do not overfill the engine with oil Refill oil to this H level Do not overfill SMA954C Revision May 2008 LU 26 2008 Pathfinder OIL FILTER lt ON VEHICLE MAINTENANCE gt VK56DE OIL FILTER Removal and Installation INFOID 0000000001297366 REMOVAL 1 Remove the engine front undercover access plate using power tool 2 Remove the oil filter usin
8. 0 0000000001297368 REMOVAL 1 Remove front cover Refer to EM 186 Exploded View 2 Remove the oil pump drive spacer 3 Remove the oil pump assembly INSTALLATION Installation is in the reverse order of removal paying attention of the following e When inserting the oil pump drive spacer align the crankshaft key and the flat face of the inner rotor If they are not aligned rotate the oil pump inner rotor by hand e Make sure that each part is aligned and tap lightly until it reaches the end _ Inner rotor flat face spacer flat face KBIA2490E INSPECTION AFTER INSTALLATION 1 Check the engine oil level Refer to LU 24 Inspection 2 Start the engine and check for engine oil leaks Revision May 2008 LU 30 2008 Pathfinder OIL PUMP 3 Stop the engine and wait 10 minutes 4 Check the engine oil level and adjust the engine oil level as required Refer to LU 24 Inspection Revision May 2008 LU 31 2008 Pathfinder OIL PUMP lt DISASSEMBLY AND ASSEMBLY gt VK56DE DISASSEMBLY AND ASSEMBLY OIL PUMP Disassembly and Assembly INF01D 0000000001297369 DISASSEMBLY 1 Remove oil pump cover 2 Remove inner rotor and outer rotor from oil pump body 3 Remove the regulator valve plug regulator valve spring and regulator valve INSPECTION AFTER DISASSEMBLY Clearance of Oil Pump Parts e Measure radial clearance using a suitable tool Feeler gauge Body to outer rotor position 1 Position
9. 0001897711 SEC 150 211 213 WBIA0790E 1 Oil pan 2 Water hose 3 Water pipe 4 Water hose 5 Connector bolt 6 Oil filter 7 Oil cooler 8 O ring 9 Relief valve 10 Water hose 11 Connector pipe 12 Gasket A To thermostat housing B Referto LU 27 C To cylinder block Removal and Installation INFOID 0000000001297367 WARNING Be careful not to burn yourself as the engine oil and engine coolant may be hot CAUTION Do not spill engine coolant on the drive belt Do not spill engine oil on rubber parts such as drive belts and engine mounting insulator REMOVAL NOTE When removing oil cooler only step 1 is unnecessary 1 Drain engine coolant from radiator and cylinder block Refer to CO 40 Changing Engine Coolant and EM 225 Disassembly and Assembly NOTE Perform this step only when removing water pipes and hoses 2 Remove engine front undercover using power tool 3 Disconnect water hoses from oil cooler pinching hoses near oil cooler to prevent engine coolant from spilling CAUTION Perform this step when engine is cold 4 Remove oil filter Refer to LU 27 Removal and Installation Revision May 2008 LU 28 2008 Pathfinder OIL COOLER 5 Remove connector bolt and remove oil cooler INSPECTION AFTER REMOVAL Oil Cooler Check oil cooler for cracks Check oil cooler for clogging by blowing compressed air through engine coolant inlet If necessary replace oil cooler assembly Relief Valve
10. 1 0 114 0 200 mm 0 0045 0 0079 in Inner rotor to outer rotor tip position 2 Below 0 180 mm 0 0071 in PBIC0139E e Measure side clearance using suitable tools Straightedge Feeler gauge Body to inner rotor position 3 0 030 0 070 mm 0 0012 0 0028 in Body to outer rotor position 4 0 030 0 090 mm 0 0012 0 0035 in Position 3 Position 4 PBIC0140E e Calculate the clearance between inner rotor and oil pump body as TRE follows Micrometer 1 Measure the outer diameter of protruded portion of inner rotor position 5 using suitable tool PBIC0141E Revision May 2008 LU 32 2008 Pathfinder OIL PUMP lt DISASSEMBLY AND ASSEMBLY gt 2 VK56DE Measure the inner diameter of oil pump body to brazed portion position 6 using suitable tool Inside micrometer PBIC0142E 3 Calculate the clearance using the following formula e Clearance Inner diameter of oil pump body Outer diameter of inner rotor Inner rotor to brazed portion of housing clearance 0 045 0 091 mm 0 0018 0 0036 in Regulator Valve Clearance Check regulator valve to oil pump cover clearance using the following formula e Clearance D1 Valve hole diameter D2 Outer Diameter of valve Regulator valve to oil pump cover 0 040 0 097 mm 0 0016 0 0038 in CAUTION e Coat regulator valve with engine oil e Check that it falls smoothly into the regulator valve hole by its own wei
11. ENGINE SECTION L U ENGINE LUBRICATION SYSTEM CONTENTS VQ40DE OIL PUMP Sg ees gege 15 Disassembly and Assembly 15 PREGAUTION ee 3 SERVICE DATA AND SPECIFICATIONS PRECAUTIONS Een E Ce EE 17 Precaution for Supplemental Restraint System SRS AIR BAG and SEAT BELT PRE TEN SERVICE DATA AND SPECIFICATIONS SIONER aglio radi ia Ce WE 17 Precaution for Liquid Gasket 3 Standard and Limit crsa sala 17 PREPARATION sssssssssssssssssssssssssssssesssseee 5 KM PREPARATION cscccccssccsssssssssssssssssscssssesesececeeeeee e PRECAUTION nemmen 18 Special Service Tool D DRECAUTIONS eee 18 Commercial Service Tool 5 Precaution for Supplemental Restraint System SRS AIR BAG and SEAT BELT PRE TEN FUNCTION DIAGNOSIS scorsa i SONER ciao Lollis 18 LUBRICATION SYSTEM ccccccccccccccccceccecccneeceeeeee 7 Precaution for Liquid Gasket 18 Lubrication Circuit 7 System Chan oaeiae pa elica deal 7 PREPARATION 20 ON VEHIC LE MAINTENANCE IO A aae 8 PREPARATION nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 20 Special Service TOO cceeeeeeeeeeeeeceeceeeeeeeeeeees 20 ENGINE OIL 8 Commercial Service TOO EEN 20 INSPECtiON jei inasi iii ilari 8 Changing Engine Oil 9 FUNCTION DIAGNOSIS t 22 OIL FILTER sesessssssssssssssssssssesssssesstessssssssseeessseen 11 ai e
12. Remove the old liquid gasket adhering to the gasket application surface and the mating surface using suitable tool e Remove the liquid gasket completely from the groove of the Scraper liquid gasket application surface bolts and bolt holes 2 Thoroughly clean the mating surfaces and remove adhering moisture grease and foreign material PBICOO03E Revision May 2008 LU 18 2008 Pathfinder PRECAUTIONS lt PRECAUTION gt 3 Attach the liquid gasket tube to the Tool Tool number WS39930000 Use Genuine RTV Silicone Sealant or equivalent Refer to GI 26 Recommended Chemical Products and Sealants 4 Apply the liquid gasket without breaks to the specified location with the specified dimensions If there is a groove for the liquid gasket application apply the liquid gasket to the groove As for the bolt holes normally apply the liquid gasket inside the holes If specified in the procedure it should also be applied outside the holes Within five minutes of liquid gasket application install the mat ing component If the liquid gasket protrudes wipe it off immediately Do not retighten after the installation Wait 30 minutes or more after installation before refilling the engine with engine oil and engine coolant CAUTION If there are specific instructions in this manual observe them Revision May 2008 LU 19 VK56DE WBIA0567E Es Inner side Groove Inner
13. ace between lower cylinder block and cylinder block Mating surface between cylinder head and rocker cover Mating surface between front timing chain case and rear timing chain case Mating surface between rear timing chain case and cylinder head Mating surface between rear timing chain case and cylinder block Mating surface between rear timing chain case and lower cylinder block Mating surface between rear timing chain case and oil pan upper e Crankshaft oil seals front and rear e Oil level gauge guide e Camshaft position sensor PHASE OIL PRESSURE CHECK WARNING Be careful not to burn yourself as the engine and engine oil may be hot e Put the selector lever in the Park P position 1 Check engine oil level Refer to LU 8 Inspection 2 Remove engine undercover using power tool PBIC2823E Revision May 2008 LU 8 2008 Pathfinder ENGINE OIL lt ON VEHICLE MAINTENANCE gt VQ40DE 3 Disconnect harness connector at oil pressure switch B and remove oil pressure switch B CAUTION Do not drop or shock oil pressure switch e A Oil pan upper e gt Front WBIA0813E 4 Install Tools Tool numbers ST25051001 J 25695 1 ST25052000 J 25695 2 WBIA0571E 5 Start the engine and warm it up to normal operating temperature 6 Check the engine oil pressure with engine running under no load Engine oil pressure Engine oil temperature at 80 C 176 F Unit kPa kg cm psi Engin
14. e Speed Approximate Discharge Pressure Idle speed More than 98 1 0 14 2 000 More than 294 3 0 43 CAUTION If the difference is extreme check the oil passages and oil pump for leaks and blockages After the inspections install oil pressure switch as follows a Remove old liquid gasket adhering to oil pressure switch and engine b Apply liquid gasket and tighten oil pressure switch to the specification Use Genuine RTV Silicone Sealant or equivalent Refer to GI 26 Recommended Chemical Prod ucts and Sealants Oil pressure switch torque 14 7 N m 1 5 kg m 11 ft lb c After warming up engine make sure there is no leakage of engine oil with running engine Changing Engine Oil INFO1D 0000000001308913 WARNING Be careful not to burn yourself as the engine and engine oil may be hot Prolonged and repeated contact with used engine oil may cause skin cancer try to avoid direct skin contact with used oil If skin contact is made wash thoroughly with soap or hand cleaner as soon as possible Warm up the engine and check for any oil leaks Stop the engine and wait for at least 10 minutes Remove the oil drain plug and oil filler cap to drain the old oil Install a new washer on the oil drain plug then install the oil drain plug in the oil pan puo Na Oil drain plug Refer to EM 36 Removal and Installation Revision May 2008 LU 9 2008 Pathfinder ENGINE OIL lt ON VEHICLE MAINTENANCE g
15. g Tool as shown Tool number KV10115801 J 38956 WARNING Be careful not to burn yourself as the engine and engine oil may be hot CAUTION e The oil filter is equipped with a pressure relief valve e Use Genuine NISSAN oil filter or equivalent e When removing prepare a shop cloth to absorb any _ engine oil leaks or spills WBIA0888E Do not allow engine oil to adhere to the drive belts e Completely wipe off any engine oil that adheres to the engine and the vehicle INSTALLATION 1 Remove foreign materials adhering to the oil filter seal mating surface 2 Apply clean engine oil to the oil filter seal circumference of the new oil filter as shown m n SMA010 3 Screw on the oil filler manually until it touches the installation surface then tighten it by 2 3 turn as shown Or tighten to speci fication Oil filter 17 7 N m 1 8 kg m 13 ft lb 2 3 of a turn SMA229B 4 Inspect the engine for oil leaks Refer to LU 27 Removal and Installation 5 Install the engine front undercover access plate using power tool INSPECTION AFTER INSTALLATION Check the engine oil level Refer to LU 24 Inspection Start the engine and check for engine oil leaks Stop the engine and wait for 10 minutes Check the engine oil level and add engine oil as required Pros gt Revision May 2008 LU 27 2008 Pathfinder OIL COOLER ON VEHICLE REPAIR OIL COOLER Ex p loded View INFOID 000000
16. ght Regulator valve PBIC0143E ASSEMBLY Installation is in the reverse order of removal NOTE Install the inner rotor and outer rotor with the punched marks on the oil pump cover side Punch mark PBIC0144E Revision May 2008 LU 33 2008 Pathfinder SERVICE DATA AND SPECIFICATIONS SDS lt SERVICE DATA AND SPECIFICATIONS SDS SERVICE DATA AND SPECIFICATIONS SDS SERVICE DATA AND SPECIFICATIONS SDS Standard and Limit OIL PRESSURE Engine speed VK56DE INFOID 0000000001 297370 Unit kPa kg cm2 psi Approximate discharge oil pressure rpm Idle speed More than 98 1 0 14 2 000 More than 294 3 0 43 Engine oil temperature at 80 C 176 F OIL PUMP Unit mm in Body to outer rotor 0414 0 200 0 0045 0 0079 Inner rotor to outer rotor tip Below 0 180 0 0071 Body to inner rotor 0 030 0 070 0 0012 0 0028 Body to outer rotor 0 030 0 090 0 0012 0 0035 Inner rotor to brazed portion of housing 0 045 0 091 0 0018 0 0036 REGULATOR VALVE Unit mm in Regulator valve to oil pump cover ENGINE OIL CAPACITY APPROXIMATE 0 040 0 097 0 0016 0 0038 Unit US qt Imp qt With oil filter change Drain and refill 6 2 6 1 2 5 1 2 Without oil filter change 5 9 6 1 4 5 1 4 Dry engine engine overhaul Revision May 2008 LU 34 7 6 8 6 3 4 2008 Pathfinder
17. ia nen e Ge ci System Chart kk EEN 23 ON VEHICLE REPAIR 12 ON VEHICLE MAINTENANCE Se OI COOLER cir 12 Exploded View cccceeeeeeeeeeeeecaeeeeeeeeeeeeeeteeeeenaees 12 SEN RE ee WEE Removal and Installation ennenen 12 Changing Engine EE Ge OIL PUMP ent SuEguuebt e au edd 14 Exploded View nnnm 14 OIL FILTER un RN POR ERRE SI IA 2 Removal and Installation ernennen 14 Removal and Installation u si DISASSEMBLY AND ASSEMBLY 15 ON VEHICLE REPAIR 28 OIL COOLER aaia i 28 Revision May 2008 LU 1 2008 Pathfinder Exploded View aiena aaa a 28 OIL PUMP iatiine lariana 32 Removal and Installation ee 28 Disassembly and Assembly i 32 OIL PUMP ia 30 SERVICE DATA AND SPECIFICATIONS Exploded View 30 SDS enee 34 Removal and Installation reenen neen 30 SERVICE DATA AND SPECIFICATIONS DISASSEMBLY AND ASSEMBLY 32 SIDS cera 34 Standard and Limit nne 34 Revision May 2008 LU 2 2008 Pathfinder PRECAUTIONS lt PRECAUTION gt VQ40DE PRECAUTION PRECAUTIONS Precaution for Supplemental Restraint System SRS AIR BAG and SEAT BELT PRE TENSIONER MATA The Supplemental Restraint System such as AIR BAG and SEAT BELT PRE TENSIONER used along with a front
18. ion position 5 using suitable tool 2 Measure the outer diameter of protruded portion of inner rotor position 6 using suitable tool Inner rotor PBIC0821E 3 Calculate the clearance using the following formula e Clearance Inner diameter of oil pump body Outer diameter of inner rotor Inner rotor to brazed portion of housing clearance 0 045 0 091 mm 0 0018 0 0036 in Regulator Valve Clearance Revision May 2008 LU 15 2008 Pathfinder OIL PUMP lt DISASSEMBLY AND ASSEMBLY gt VQ40DE Check regulator valve to oil pump cover clearance using the following formula e Clearance D1 Valve hole diameter D2 Outer Diameter of valve Regulator valve Regulator valve to oil pump cover 0 025 0 070 mm 0 0010 0 0028 in CAUTION e Coat regulator valve with engine oil e Check that it falls smoothly into the regulator valve hole by its own weight Oil pump body PBIC2829E ASSEMBLY Installation is in the reverse order of removal NOTE Install oil pump inner rotor with the groove faced and oil pump outer rotor with the punch mark to oil pump cover side Oil pump body side AL Punch mark a AN AW Oil pump cover side PBIC2830E Revision May 2008 LU 16 2008 Pathfinder SERVICE DATA AND SPECIFICATIONS SDS lt SERVICE DATA AND SPECIFICATIONS SDS VQ40DE SERVICE DATA AND SPECIFICATIONS SDS SERVICE DATA AND SPECIFICATIONS SDS Standard and Limit OIL PRESSURE E
19. ive belts e Completely wipe off any engine oil that adheres to the engine and the vehicle INSTALLATION 1 Remove foreign materials adhering to the oil filter seal mating surface 2 Apply clean engine oil to the oil filter seal circumference of the new oil filter as shown SMA010 3 Screw on the oil filter manually until it touches the installation surface then tighten it by 2 3 turn as shown Or tighten to speci fication 2 3 of a turn Oil filter 17 7 N m 1 8 kg m 13 ft lb SMA702C 4 Inspect the engine for oil leaks Refer to LU 11 Removal and Installation 5 Install the engine undercover using power tool INSPECTION AFTER INSTALLATION Check the engine oil level Refer to LU 8 Inspection Start the engine and check for engine oil leaks Stop the engine and wait for 10 minutes Check the engine oil level and adjust the engine oil level as required PER Revision May 2008 LU 11 2008 Pathfinder OIL COOLER ON VEHICLE REPAIR OIL COOLER Exploded View INFO1D 0000000001897709 SEC 150 211 213 Wei a 0 39 2 4 0 29 I To water inlet ssi and thermostat assembly SY 2 d 49 0 5 0 36 x S N lt Refer to OIL FILTER in LU section 0 22 0 2 2 16 Q Always replace after every disassembly Apply Genuine RTV silicone Sealant or equivalent Refer to GI section DI Nem kg m ft lb WBIA0572E 1 Water connector 2 Water hose
20. lley 4 Chain tensioner Left bank 5 Oil filter 6 Oil cooler 7 Oil pan 8 Oil strainer 9 Oil pump 10 Chain tensioner Right bank Revision May 2008 LU 22 2008 Pathfinder LUBRICATION SYSTEM lt FUNCTIONDIAGNOSIS gt DEE Syste m C h a rt INFOID 0000000001308865 demm DI gallery lt Oil passage By pass passage Sa Oil jet Oil pump Regulator valve To oil pan i i Cylinder head oil Cylinder head oil Chain tensioner ilj ilj gallery Right bank gallery Left bank Left bank Crankshaft Camshaft Intake Camshaft Exhaust bracket camshaft cover cover bracket camshaft rod bearing No 1 bracket No 1 bracket No 2 q No 2 iii I rod Camshaft Camshaft Camshaft Camshaft Camshaft journal oil oil journal oil Chain passage passage imi imi No 1 passage tensioner Right bank Intake Exhaust Exhaust camshaft camshaft HH hi camshaft journals journals journals solenoid valve Intake valve timing controller PBIC0134E Revision May 2008 LU 23 2008 Pathfinder ENGINE OIL lt ON VEHICLE MAINTENANCE gt VK56DE ON VEHICLE MAINTENANCE ENGINE OIL n S pect i O n INFOID 0000000001297364 OIL LEVEL Before starting the engine make sure the vehicle is parked on a flat and level surface then check the oil level If the engine is already running turn it off and allow 10 minutes before checking Pull out oil level gauge and wipe clean Insert oil le
21. mediately Do not retighten after the installation Wait 30 minutes or more after installation before refilling the engine with engine oil and engine coolant CAUTION If there are specific instructions in this manual observe them Inner side SEM159F Revision May 2008 LU 4 2008 Pathfinder PREPARATION lt PREPARATION gt VQ40DE PREPARATION PREPARATION Special Service Tool iwFo10 0000000001303813 BAI The actual shapes of Kent Moore tools may differ from those of special service tools illustrated here Tool number Description Kent Moore No Tool name ST25051001 Measuring oil pressure J 25695 1 Maximum measuring range Oil pressure gauge 2 452 kPa 25 kg cm 356 psi S NT050 ST25052000 Adapting oil pressure gauge to cylinder block J 25695 2 Hose PS1 8x28 in PS1 4x19 in S NT559 KV10111100 Removing steel oil pan and rear timing chain J 37228 case Seal cutter l NT046 KV10115801 Removing and installing oil filter J 38956 i a 64 3 mm 2 531 in Oil filler wrench 8 S NT375 WS39930000 Pressing the tube of liquid gasket Tube presser S NT052 Commercial Service Tool INFOID 0000000001282175 Revision May 2008 LU 5 2008 Pathfinder PREPARATION lt PREPARATION gt VQ40DE Tool name Description Power tool Loosening nuts and bolts PBIC0190E Deep socket Removing and installing oil pressure sensor a 24 mm 0 94 in OD PBIC2072E
22. mp assembly INSTALLATION Installation is in the reverse order of removal paying attention to the following e When installing align crankshaft flat faces with inner rotor flat faces INSPECTION AFTER INSTALLATION 1 Check the engine oil level Refer to LU 8 Inspection 2 Start the engine and check for engine oil leaks 3 Stop engine and wait for 10 minutes 4 Check the engine oil level and adjust engine oil level as required Refer to LU 8 Inspection Revision May 2008 LU 14 2008 Pathfinder OIL PUMP lt DISASSEMBLY AND ASSEMBLY gt VQ40DE DISASSEMBLY AND ASSEMBLY OIL PUMP Disassembly and Assembly INFOID 0000000001282183 DISASSEMBLY 1 Remove oil pump cover 2 Remove inner rotor and outer rotor from oil pump body 3 Remove the regulator valve plug regulator valve spring and regulator valve INSPECTION AFTER DISASSEMBLY Clearance of Oil Pump Parts e Measure radial clearance using a suitable tool Body to outer rotor position 1 0 120 0 195 mm 0 0047 0 0077 in Inner rotor to outer rotor tip position 2 0 060 0 160 mm 0 0024 0 0063 in PBIC2827E e Measure side clearance using suitable tools Body to inner rotor position 3 0 030 0 070 mm 0 0012 0 0028 in Body to outer rotor position 4 0 050 0 090 mm 0 0020 0 0035 in e Calculate the clearance between inner rotor and oil pump body as follows 1 Measure the inner diameter of oil pump body to brazed port
23. ngine speed INFOID 0000000001282184 Unit kPa kg cm psi Approximate discharge pressure rpm Idle speed More than 98 1 0 14 2 000 More than 294 3 0 43 Engine oil temperature at 80 C 176 F OIL PUMP Unit mm in Body to outer rotor 0 120 0 195 0 0047 0 0077 Inner rotor to outer rotor tip 0 060 0 160 0 0024 0 0063 Body to inner rotor 0 030 0 070 0 0012 0 0028 Body to outer rotor 0 050 0 090 0 0020 0 0035 Inner rotor to brazed portion of housing 0 045 0 091 0 0018 0 0036 REGULATOR VALVE Unit mm in Regulator valve to oil pump cover ENGINE OIL CAPACITY APPROXIMATE Drain and refill With oil filter change 0 025 0 070 0 0010 0 0028 Unit US qt Imp qt 5 1 5 3 8 4 1 2 Without oil filter change 4 8 5 1 8 4 1 4 Dry engine Overhaul Revision May 2008 6 3 6 5 8 5 1 2 LU 17 2008 Pathfinder PRECAUTIONS lt PRECAUTION gt VK56DE PRECAUTION PRECAUTIONS Precaution for Supplemental Restraint System SRS AIR BAG and SEAT BELT PRE TENSIONER IWF010 0000000001297358 The Supplemental Restraint System such as AIR BAG and SEAT BELT PRE TENSIONER used along with a front seat belt helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision This system includes seat belt switch inputs and dual stage front air bag modules The SRS system use
24. o 3 4 journal No 2 3 4 i Li Intake camshaft Intake valve timing journal No 1 control cover if if Intake valve timing controller PBIC2822E Revision May 2008 LU 7 2008 Pathfinder ENGINE OIL lt ON VEHICLE MAINTENANCE gt VQ40DE ON VEHICLE MAINTENANCE ENGINE OIL n S pect i O n INFOID 0000000001282178 OIL LEVEL Before starting the engine make sure the vehicle is parked on a flat and level surface then check the oil level If the engine is already running turn it off and allow 10 minutes before checking Pull out oil level gauge and wipe clean Insert oil level gauge Check that the oil level is within the low L and high H range as indicated on the dipstick If the engine oil level is out of range add oil as necessary Refer to MA 10 Fluids and Lubricants CAUTION Do not overfill the engine with oil OIL APPEARANCE e Check the engine oil for a white milky appearance or excessive contamination If the engine oil is milky it is highly probable that it is contaminated with engine coolant Repair or replace damaged parts OIL LEAKAGE Check for oil leakage around the following areas e Oil pans lower and upper e Oil pan drain plug e Oil pressure switch e Oil filter e Oil cooler e Water pump cover e Chain tensioner cover Intake valve timing control cover and intake valve timing control solenoid valve Mating surface between cylinder block and cylinder head Mating surf
25. s the seat belt switches to determine the front air bag deployment and may only deploy one front air bag depending on the severity of a collision and whether the front occupants are belted or unbelted Information necessary to service the system safely is included in the SR and SB section of this Service Man ual WARNING e To avoid rendering the SRS inoperative which could increase the risk of personal injury or death in the event of a collision which would result in air bag inflation all maintenance must be performed by an authorized NISSAN INFINITI dealer e Improper maintenance including incorrect removal and installation of the SRS can lead to personal injury caused by unintentional activation of the system For removal of Spiral Cable and Air Bag Module see the SR section Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Manual SRS wiring harnesses can be identified by yellow and or orange harnesses or har ness connectors Precaution for Liquid Gasket INFOID 0000000001297359 REMOVAL OF LIQUID GASKET SEALING e After removing the bolts and nuts separate the mating surface and remove the old liquid gasket sealing using Tool Tool number KV10111100 J 37228 CAUTION Do not damage the mating surfaces e Tap 1 the Tool to insert it e In areas where the Tool is difficult to use lightly tap to slide 2 it WBIAOS66E LIQUID GASKET APPLICATION PROCEDURE 1
26. seat belt helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision This system includes seat belt switch inputs and dual stage front air bag modules The SRS system uses the seat belt switches to determine the front air bag deployment and may only deploy one front air bag depending on the severity of a collision and whether the front occupants are belted or unbelted Information necessary to service the system safely is included in the SR and SB section of this Service Man ual WARNING e To avoid rendering the SRS inoperative which could increase the risk of personal injury or death in the event of a collision which would result in air bag inflation all maintenance must be performed by an authorized NISSAN INFINITI dealer e Improper maintenance including incorrect removal and installation of the SRS can lead to personal injury caused by unintentional activation of the system For removal of Spiral Cable and Air Bag Module see the SR section Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Manual SRS wiring harnesses can be identified by yellow and or orange harnesses or har ness connectors Precaution for Liquid Gasket INFOID 0000000001308809 REMOVAL OF LIQUID GASKET SEALING e After removing the bolts and nuts separate the mating surface and remove the old liquid gasket sealing using Tool SQ 6 Tool number
27. side SEM159F 2008 Pathfinder PREPARATION lt PREPARATION gt VKS6DE PREPARATION PREPARATION Special Service Tool INFO1D 0000000001207360 The actual shapes of Kent Moore tools may differ from those of special service tools illustrated here Tool number Description Kent Moore No Tool name ST25051001 Measuring oil pressure J 25695 1 Maximum measuring range Oil pressure gauge 2 452 kPa 25 kg cm 356 psi S NT050 ST25052000 Adapting oil pressure gauge to cylinder block J 25695 2 Hose PS1 8x28 in PS1 4x19 in S NT559 KV10111100 Removing steel oil pan and rear timing chain J 37228 case Seal cutter NT046 KV10115801 Removing and installing oil filter J 38956 A a 64 3 mm 2 531 in Oil filler wrench O E j S NT375 WS39930000 Pressing the tube of liquid gasket ed Tube presser S NT052 Co m m e TC i a S e rv i ce Too INFOID 0000000001 297361 Revision May 2008 LU 20 2008 Pathfinder PREPARATION lt PREPARATION gt VK56DE Tool name Description Power tool Loosening bolts and nuts PBICO190E Deep socket Removing and installing oil pressure switch Deep socket 26 mm NT818 Revision May 2008 LU 21 2008 Pathfinder LUBRICATION SYSTEM lt FUNCTION DIAGNOSIS gt VKS6DE FUNCTION DIAGNOSIS LUBRICATION SYSTEM L u b ri cati O n G i rc u it INFOID 0000000001297362 WBIA0399E 1 Exhaust camshaft 2 Intake camshaft 3 Main oil ga
28. t VQ40DE CAUTION Clean the drain plug and install with a new washer 5 Refill the engine with new specified engine oil Oil grade and viscosity Refer to MA 10 Fluids and Lubricants Oil capacity Refer to MA 10 Fluids and Lubricants CAUTION The refill capacity depends on the oil temperature and drain time Use the Refill oil capacity val ues as a reference and check the oil level using the dipstick when filling the engine with oil 6 Warm up the engine and check the area around the drain plug and oil filter for any oil leaks 7 Stop the engine and wait for more than 10 minutes 8 Check the oil level using the dipstick as shown Add oil as nec essary and install the oil filler cap Refer to LU 8 Inspection CAUTION Do not overfill the engine with oil Overfull RZ e Normal range Add PBIC2823E Revision May 2008 LU 10 2008 Pathfinder OIL FILTER lt ON VEHICLE MAINTENANCE gt VQ40DE OIL FILTER Removal and Installation RO REMOVAL 1 Remove the engine undercover using power tool 2 Remove the oil filter using Tool as shown Tool number KV10115801 J 38956 WARNING Be careful not to burn yourself as the engine and engine oil may be hot CAUTION Oil filter is equipped with a pressure relief valve e Use Genuine NISSAN Oil Filter or equivalent e When removing prepare a shop cloth to absorb any Q engine oil leaks or spills LBIA0425E Do not allow engine oil to adhere to dr
29. vel gauge Check that the oil level is within the low L and high H range as indicated on the dipstick If the engine oil level is out of range add oil as necessary Refer to Refill oil to this H level MA 10 Fluids and Lubricants Do not overfill CAUTION Do not overfill the engine with oil SMA954C OIL APPEARANCE e Check the engine oil for a white milky appearance or excessive contamination If the engine oil is milky it is highly probable that it is contaminated with engine coolant Repair or replace damaged parts OIL LEAKAGE Check for oil leakage around the following areas e Oil pan e Oil pan drain plug e Oil pressure switch e Oil filter e Oil cooler Intake valve timing control cover Intake valve timing control solenoid valve Front cover Mating surface between cylinder block and cylinder head Mating surface between cylinder head and rocker cover Crankshaft oil seal front and rear OIL PRESSURE CHECK WARNING Be careful not to burn yourself as the engine and engine oil may be hot e Put the selector lever in the Park P position 1 Check the engine oil level Refer to LU 24 Inspection Remove engine front undercover using power tool Disconnect the oil pressure switch A harness connector Remove the oil pressure switch A CAUTION Do not drop or shock oil pressure switch FON WBIA0791E Revision May 2008 LU 24 2008 Pathfinder ENGINE OIL 5 Install Tools
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