Tightening torques for threaded connections (Peugeot 306)

TU type engines

Cylinder head bolts - aluminum cylinder block: - first pass 20 Nm

second pass tightening at an angle of 240°

Cast iron cylinder block:

• first pass - 20 nm
• second pass tightening at an angle of 120°
• third pass tightening at an angle of 120°

Camshaft sprocket mounting bolt - 80 Nm

Valve adjusting screw locknuts - 18 Nm

Cylinder head cover nuts - 5 Nm

Camshaft retaining plate - 15 Nm

Connecting Rod Bearing Nuts - 1/4 Liter Engine:

• first pass - 20 nm
• second pass tightening at an angle of 45°

Connecting rod bearing nuts - 1.6 liter engine: - 37.5 Nm

Main bearings - 1.4 liter engine:

• Housing bolts - 40 Nm
• Small bolts on the engine crankcase (along the outer edge) — 8 nm

Main Bearing Bolts - 1.6L Engine:

• first pass - 20 nm
• second pass - tightening at an angle of 50°

Flywheel bolts - 65 Nm

Crankshaft timing belt pulley bolt - 100 Nm

Fastening the belt pulley to the belt pulley housing - 8 Nm

Cooling system outlet fitting housing - 8 Nm

Front oil seal cover - 8 Nm

Rear oil seal flange - 8 nm

Ignition distributor drive housing - 8 Nm

Mounting the ignition distributor on the housing - 8 Nm

Fuel pump on the cylinder head - 8 Nm

Cylinder head oil dipstick tube - 15 Nm

The scale for setting the ignition timing on the cylinder block is 8 Nm

Water pump, small bolts - 30 Nm



Water pump, large bolts - 55 Nm

Channel plug, lubricants - 39 nm

Sensor (next to the filter) — 28 nm

Sensor (above the filter) — 25 nm

Oil pump and oil pan on the cylinder block - 8 Nm

Exhaust manifold studs 5 - 7.5 Nm

Exhaust manifold nuts - 16 Nm

Exhaust pipe clamps - 12 Nm

Intake manifold on cylinder head - 8 Nm

Oil drain plug - 39 Nm

Engine mounts - see text

Spark plugs (with sealing rings) — 35 nm

Flywheel clutch - 15 Nm

XU-type engines

Cylinder head bolts 8-valve engines:

• first pass - up to 60 nm
• second pass - completely loosen
• third pass - tighten to 20 Nm
• fourth pass - tightening to an angle of 300°

Cylinder Head Bolts - 16-Valve Engines:

• first pass - up to 35 nm
• second pass - up to 70 nm
• third pass tightening at an angle of 160°

Camshaft Timing Pulley Bolt - 35 Nm

Camshaft bearing caps - 15 Nm

Flywheel bolts - 50 Nm

Crankshaft timing belt pulley bolt - 110 Nm

Timing Gear Cover Bolts - 10 Nm

Cylinder head cover - 10 Nm

Timing Belt Tensioner Bolts - 16 Nm

Main bearing cap bolts - 70 Nm

Connecting rod bearing caps:

• first pass - up to 40 nm
• second pass - completely loosen
• tighten the third pass to 20 Nm with an additional 70° angle

Oil drain plug - 30 Nm

Engine mounts - see text

Intake manifold - 20 Nm

Water pump - 15 Nm

Clutch bolts - 15 Nm

Diesel and turbodiesel engines

Cylinder Head Bolts - Non-Turbo:

• first pass - tighten to 70 Nm
• second pass - tightening at an angle of 180°

Cylinder Head Bolts - Turbo Diesel Engines:

• first pass - tighten to 20 Nm
• second pass - tighten to 60 Nm
• third pass - tightening to an angle of 220°

Connecting rod bearing caps - 50 Nm



Main bearing caps - 70 Nm

Crankshaft belt pulley:

• first pass - 40 nm
• second pass - tightening to an angle of 60°

Flywheel bolts - 50 Nm

Timing pulley of the camshaft - 45 Nm

Camshaft bearing caps - 20 Nm

Cylinder head cover - 2 Nm

Oil pan - 15 Nm

Tension roller fastening - 20 Nm

Tension roller - 20 Nm

High pressure fuel pump drive pulley - 50 Nm

Oil pump - 15 Nm

Injectors - 90 nm

Glow plugs - 22 nm

Water pump - 10 Nm

Cooling system outlet fitting - 15 Nm

Fuel filter bolt - 15 Nm

Filter cover bolts - 6 Nm

Temperature switch - 18 nm

Exhaust manifold - 22 Nm

Turbocharger - 55 Nm

Vacuum pump - 25 nm

Intake manifold - 25 Nm

Clutch drive disc - 22 Nm

Engine/gearbox mounts - see relevant section

Transmission

Oil drain and oil filler plugs - 25 Nm

Reverse light switch - 25 Nm

Gearbox MA

Gearbox on the engine - 35 Nm

Box to box support axis - 20 nm

Rubber-metal support to the body - 25 nm

Gearbox support axle nut - 65 Nm

Battery tray bolts - 20 Nm

Control unit mountings - 20 nm

The thrust on the articulated lever is 20 Nm

Starter bolts - 20 Nm

Drive shaft support - 18 Nm

Drive shaft nuts (non-ABS) - 265 Nm

Drive shaft nuts (with ABS) - 325 Nm

Wheel bolts - 85 Nm

Gearbox MA

Gearbox on the engine - 45 Nm

Box-to-box support axis - 50 nm

Gearbox mount side bolts - 25 Nm

Gearbox support axle nut - 65 Nm

Battery tray bolts - 20 Nm

Control unit mounting bolts (ABS) - 20 Nm

Differential end mount - 20 Nm

Starter bolts - 20 Nm

Drive shaft support - 18 Nm

Drive shaft nuts - 325 Nm

Torque support bolt - 50 Nm

Wheel bolts - 85 Nm

Clutch basket guide sleeve - 6 Nm

Steering

Steering wheel nut - 3 Nm

Steering gear mounting on the chassis - 60

Steering ends on swing arms - 35 Nm

Steering rods on a toothed rack - 50 Nm

Steering coupling tightening bolt - 2.5 Nm

Tube union nuts - 13 Nm

Tie rod locknuts - 45 Nm

Power steering cylinder - 55 Nm

Power steering cylinder on the steering rod - 55 Nm

Front suspension

Shock absorber strut on the body - 20 Nm

Rod nut, upper shock absorber strut support - 45 Nm

Shock absorber strut on steering knuckle - 55 Nm

Steering rod joint nuts - 35 Nm

Upper and lower anti-roll bar links - 40 Nm

Anti-roll bar on wishbone - 55 Nm

• Wishbone on frame, rear - 55 Nm
• Wishbone on frame, front - 75 Nm

Ball joint on wishbone - 50 Nm

Wishbone bushing on frame - 27 Nm

• Drive shaft nut - M20 thread - 265 Nm
• Drive shaft nut - M25 thread - 325 Nm

Brake caliper mounting bolts:

• bendix brake caliper - 110 Nm
• teves brakes - caliper mount - 30 Nm
• teves brakes - brake caliper housing - 120 Nm

Wheel nuts - 85 Nm

Rear suspension

Shock absorber mount, upper - 75 Nm

Shock absorber mount, lower - 120 Nm

Torsion bar mounting bolt - 20 Nm

Anti-roll bar link on trailing arm - 35 Nm

Wheel bearing nuts - 185 Nm

Bridge beam on the body - 45 nm

Beam support pins - 45 nm

Brake shield (drum) on the bridge - 40 nm

Wheel nuts - 85 Nm

Brake system

Brake caliper mounting bolts, front wheel brakes:

• Bendix - Brake Caliper Housing - 110 Nm
• Lucas - Brake Caliper Housing - 100 Nm
• Teves - Brake Caliper on Brake Caliper Body - 30 Nm
• Teves - Brake Caliper Housing - 120 Nm

Master cylinder - 15 Nm

Air release valves - 8 Nm



Connecting brake hoses - 13 Nm

Brake pipe union nuts - 14 Nm

Drive shaft nut - M20 thread - 265 Nm

Drive shaft nut - M25 thread - 325 Nm

Rear wheel hub nuts - 185 Nm

Brake booster on bulkhead - 20 Nm

Brake shield mounting bolts on the trailing arm - 40 Nm

Rear brake caliper on the caliper body on the rear axle - 120 Nm

Wheel bolts - 85 Nm

ABS hydraulic control unit mount - 20 Nm

Connecting pipelines to the unit - 15 nm

ABS speed sensors, front, on steering knuckles - 10 Nm

ABS speed sensors, rear, on the rear side of the rear axle - 10 Nm

Load-dependent brake force regulator mounting bolt - 20 Nm

Pedal axle nut - 20 Nm

Light metal alloy wheels - Follow manufacturer's instructions.