Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSJAGUAR1991XJ-6 L6-4.0LREPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTENGINESPECIFICATIONSTORQUE SPECIFICATIONS
1991 Jaguar XJ-6 L6-4.0L
Torque Specifications
1991 Jaguar XJ-6 L6-4.0LSECTION Torque Specifications
4.0L Torque Specifications
ALL TORQUE SPECIFICATIONS ARE IN MILLIMETERS
Alternator bolt- trunnion lock nuts ..........12-14 Nm
Alternator pivot bolt ........................23-27 Nm
Alternator pivot bolt nut ....................23-27 Nm
Banlo bolt to cylinder head ..................13-16 Nm
Camcover to cylinder head ...................9.5-12 Nm
Camshaft sprocket to camshaft ................23-27 Nm
Clip-hose to breather pipe .....................2.4 Nm
Connecting rod to big end nut .................52-55 Nm
Cylinder block drain plug .....................68-75 Nm
Cylinder head to cylinder block:
Tighten in sequence to ........................52-54 Nm
Rotate clockwise through exactly 90°
Dipstick to bracket .............................5-8 Nm
Distributor clamp plate to timing cover ......9.5-12 Nm
Exhaust manifold to cylinder head .............23-27 Nm
Heat shield to exhaust manifold ...............23-27 Nm
Heater pipe to cylinder head ..................23-27 Nm
Heater pine to inlet manifold ................9.5-12 Nm
Hose-bottom hose to water pump ..............3.8-4.3 Nm
Hose-expansion tank to water pump ...........2.5-3.5 Nm
Hose-heater return pipe to water pump .......2.5-3.5 Nm
Hose-water pump to thermostat housing .......2.5-3.5 Nm
Inlet manifold to cylinder head ...............23-27 Nm
Intake elbow to throttle housing ................2.4 Nm
Oil pump front cover to body .................9.5-12 Nm
Oil pump to cylinder block ....................23-27 Nm
Oil pump rear cover to body ..................9.5-12 Nm
Oil sump plug .................................41-47 Nm
Oil sump to cylinder block ....................23-27 Nm
Oil sump to timing cover ......................23-27 Nm
Power steering pump to mounting ...............23-27 Nm
Power steering pump to adaptor ................49-54 Nm
Top hose to thermostat housing ..............3.8-4.3 Nm
Transfer housing to cylinder block ............23-27 Nm
Windage tray to cylinder block ................23-27 Nm
Lower chain tensioner to cylinder block .......23-27 Nm
Lowerstatic damper to cyllnder block ..........23-37 Nm
Oil pump drive chain damper to block ..........23-27 Nm
Upper static damper to cylinder block .........23-27 Nm
Upper timing chain tensioner to block .........23-27 Nm
Lower left hand damper to cyllnder block ......23-27 Nm
Lower right hand damper to cylinder block .....23-27 Nm
Oil pump drive chain damper to block ...........3-27 Nm
Upper right hand damper to cyllnder block .....23-27 Nm
Upper timing chain tensioner to block .........23-27 Nm
ALL TORQUE SPECIFICATIONS ARE IN MILLIMETERS
Alternator bolt- trunnion lock nuts ..........12-14 Nm
Alternator pivot bolt ........................23-27 Nm
Alternator pivot bolt nut ....................23-27 Nm
Banlo bolt to cylinder head ..................13-16 Nm
Camcover to cylinder head ...................9.5-12 Nm
Camshaft sprocket to camshaft ................23-27 Nm
Clip-hose to breather pipe .....................2.4 Nm
Connecting rod to big end nut .................52-55 Nm
Cylinder block drain plug .....................68-75 Nm
Cylinder head to cylinder block:
Tighten in sequence to ........................52-54 Nm
Rotate clockwise through exactly 90°
Dipstick to bracket .............................5-8 Nm
Distributor clamp plate to timing cover ......9.5-12 Nm
Exhaust manifold to cylinder head .............23-27 Nm
Heat shield to exhaust manifold ...............23-27 Nm
Heater pipe to cylinder head ..................23-27 Nm
Heater pine to inlet manifold ................9.5-12 Nm
Hose-bottom hose to water pump ..............3.8-4.3 Nm
Hose-expansion tank to water pump ...........2.5-3.5 Nm
Hose-heater return pipe to water pump .......2.5-3.5 Nm
Hose-water pump to thermostat housing .......2.5-3.5 Nm
Inlet manifold to cylinder head ...............23-27 Nm
Intake elbow to throttle housing ................2.4 Nm
Oil pump front cover to body .................9.5-12 Nm
Oil pump to cylinder block ....................23-27 Nm
Oil pump rear cover to body ..................9.5-12 Nm
Oil sump plug .................................41-47 Nm
Oil sump to cylinder block ....................23-27 Nm
Oil sump to timing cover ......................23-27 Nm
Power steering pump to mounting ...............23-27 Nm
Power steering pump to adaptor ................49-54 Nm
Top hose to thermostat housing ..............3.8-4.3 Nm
Transfer housing to cylinder block ............23-27 Nm
Windage tray to cylinder block ................23-27 Nm
Lower chain tensioner to cylinder block .......23-27 Nm
Lowerstatic damper to cyllnder block ..........23-37 Nm
Oil pump drive chain damper to block ..........23-27 Nm
Upper static damper to cylinder block .........23-27 Nm
Upper timing chain tensioner to block .........23-27 Nm
Lower left hand damper to cyllnder block ......23-27 Nm
Lower right hand damper to cylinder block .....23-27 Nm
Oil pump drive chain damper to block ...........3-27 Nm
Upper right hand damper to cyllnder block .....23-27 Nm
Upper timing chain tensioner to block .........23-27 Nm
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.