Tightening torques for threaded connections (Nm) (Discovery 1)

Engine block

• Main bearing cap - 133
• Rear oil line plug - 37
• Piston cooling nozzle - 17
• Drain plug - 25
• Vacuum pump cam lubrication nozzle - 7
• Connecting rod bearing cap - 59
• Oil pressure sensor (on the bearing cap) — 9
• Oil pressure sensor (on the front cover) — 25
• Axial camshaft locking tool - 9
• Oil drain pipe to the block (internal) — 25
• Oil drain pipe to the block (external) - 25
• Pallet - 25
• Oil pan drain plug - 35
• Pusher guide - 14
• Crankcase ventilation side cover - 25
• Crankcase ventilation side cover flap - 4
• Vacuum pump - 25
• Fuel pump - 25
• Flywheel housing - 45
• Flywheel housing hatch - 10
• Flywheel housing plug - 12
• Rear oil seal housing - 25
• Oil filter bracket - 45
• Oil thermostat housing to filter - 9
• Oil pressure sensor - 17
• Oil filter - 13
• Oil cooler hoses - 45
• Oil dipstick tube - 25
• Engine support to block - 85
• Engine support to clutch housing - 45
• Support cushion to support - 85
• Flywheel to crankshaft - 146
• Clutch basket to flywheel - 34
• Automatic transmission drive clutch to the crankshaft - 146
• Starter pinion ring gear to automatic transmission drive clutch — 25
• Automatic transmission drive clutch to torque converter — 45

Cylinder head

Cylinder head to block see. text

• Heater tube - 22
• Coolant temperature sensor - 14
• Cylinder head plug - 14
• Engine lift bracket - 25
• Wiring support clip bracket - 25
• Exhaust manifold stud - 10
• Exhaust manifold nut - 45
• Intake Manifold Stud - 8
• Intake Manifold Nut and Bolt - 25
• Air temperature sensor - 14
• Intake Manifold Cap - 14
• Intake Manifold Heat Shield - 6
• Glow plug - 20
• Glow Plug Wire Nut - 2
• Injector bracket (stud) - 8
• Injector bracket (nut) - 25
• Thermostat housing - 25
• Thermostat housing pipe - 25
• Temperature sensor switch (thermostat housing) — 11
• Thermostat housing plug - 6
• Rocker arm axle stand bolt - 5 +50°
• Valve cover (stud) - 8
• Valve cover (nut) - 10
• Oil separator (crankcase ventilation) — 9
• Pusher adjusting nut - 16
• Front cover to the block - 25
• Plastic cover to front cover - 25
• Plastic roller (timing belt, stud) — 10
• Plastic roller (timing belt, nut) — 45
• Tensioner (timing belt) — 45
• Camshaft Hub Bolt - 80
• Camshaft hub ring gear - 25
• Fuel injection pump (stud) - 8
• Fuel injection pump (nut) - 25
• Rear support bracket to the fuel injection pump - 25
• Bracket for the rear support of the fuel injection pump to the block - 25
• Fuel injection pump gear access cover - 25
• Toothed ring of the hub of the fuel injection pump gear wheel - 25
• Torsional vibration damper bolt - 80 +90°
• Fan pulley to hub - 25
• Viscous fan clutch - 45
• Attachment Belt Tensioner (Stud) - 14
• Attachment belt tensioner (nut) - 25
• Water pump pulley to hub - 25
• Adapter for the oil drain hose from the turbocharger to the block - 42
• Oil drain hose from turbocharger to turbocharger - 25
• Oil drain hose tube to adapter - 38
• Adapter for the turbocharger oil supply pipe to the block - 25
• TKR oil supply pipe to the adapter - 25
• TCR oil supply pipe to TCR - 19
• TCR to cylinder head (stud) - 10
• TCR to cylinder head (nut) - 45
• TKR plug - 25
• TKR to EGR valve - 25
• Recirculation tube to valve - 25
• Recirculation pipe to the mixer - 25
• Fuel pump to filter (nut) - 15
• Fuel pump to the filter (hollow bolt) — 33
• Fuel filter for injection pump (hollow bolt) — 33
• High pressure tubes - 29
• Drain pipe to the injectors (hollow bolt) — 10
• Drain pipe to the fuel injection pump (hollow bolt) — 25
• Boost corrector tube to the high-pressure fuel pump - 10
• Plug - 29
• Power steering pump mounting bracket - 25
• Power steering pump bracket to adapter plates - 25
• Power steering pump pulley to hub - 25
• Generator bracket - 25
• Starter (bolt and nut) — 45
• Tachometer (wiring connector) — 4

Air conditioning compressor

• Front cover support bracket - 45
• Compressor to bracket (stud) - 8
• Compressor to bracket (nut) - 25
• Belt tensioner pulley to tension bar - 45
• Belt tensioner to the front cover - 25
• Idler pulley to front cover - 45
• Coolant temperature sensor (air conditioning systems) — 25
• Coolant outlet pipe plug - 25
• Generator bracket to front cover - 45
• Generator to bracket - 85
• Generator pulley to hub - 95
• Alternator Belt Guard - 25