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46 SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS TIGHTENING TORQUES PART TORQUE PART Nm kgm Under-basement fastening screws to cylinder block ♦ Outer screws First stage : pre-tightening M10x1.25 25 2.5 Inner screws Second stage : pre-tightening M16x2 140 14 Inner screws Third stage : angle closing M16x2 60 ° Inner screws Fourth stage : angle closing M16x2 60 ° Outer screws Fifth stage : angle closing M10x1,5 90 ° Pipe union for piston cooling nozzle M12X1.5 35 ± 2 3.5 ± 0.2 Intercooler fastening screws to cylinder block ♦ pre-tightening 11.5 ± 3.5 19 ± 3 1.15 ± 0.35 1.9 ± 0.3 Plug 125 ± 15 12.5 ± 1.5 Spacer and oil sump fastening screws 41.5 ± 3.5 4.1 ± 0.3 Gearcase fastening screws to cylinder block 41.5 ± 3.5 4.1 ± 0.3 63 ± 7 6.3 ± 0.7 9 ± 3 1.9 ± 0.3 Cylinder head fastening screw: ♦ First stage pre-tightening 50 5 Second stage pre-tightening 100 10 Third stage angle closing 90 ° Fourth stage angle closing 75 ° Rocker arm shaft fastening screw ♦ First stage pre-tightening 40 4 Second stage angle closing 60 ° Locknut for rocker arm adjusting screw ♦ 39 ± 5 3.9 ± 5 Screws for injector fastening brackets ♦ 36.5 3.65 Shoulder plate fastening screws to head ♦ 20 ± 2 2 ± 0.2 Engine support bracket fastening screws to cylinder head 74 ± 8 7.4 ± 0.8 Gear fastening screws to camshaft: ♦ First stage pre-tightening 50 5 Second stage angle closing 50 ° Phonic wheel fastening screws to distribution gear 8.5 ± 1.5 0.8 ± 0.1 Exhaust pipe fastening screws • pre-tightening 40 ± 5 70 ± 5 4 ± 0.5 70 ± 0.5 Connecting rod cap fastening screws: ♦ First stage pre-tightening 50 5 Second stage angle closing 40 ° Engine flywheel fastening screws: ♦ M16x1.5x58 First stage pre-tightening 100 10 Second stage angle closing 60 ° Engine flywheel fastening screws: ♦ M16x1.5x110 First stage pre-tightening 100 10 Second stage angle closing 120 ° Flywheel pulley fastening screws to crankshaft : ♦ First stage pre-tightening 70 7 Second stage angle closing 50 ° Fixing screw for the phonic wheel fixed in the timing system gear 8.5 ± 1.5 0.8 ± 0.1 ♦ Lubricate with oil MOLYKOTE before assembly Lubricate with graphitized oil before assembly |