Tightening torques in Nm
4
L / M . . / 07.96
L 31. M 31
Engine L 30 L 40. M 40
L 41. M 41
Shouldered nuts on stud bolts (tierods) for cylinder head
(Coat the tierod thread and washer contact face in the
oil cavity with sealant D)5065
Big end bolts: M 10 x 1 (8 mm Allen screw) 60 60
M 11 x 1 (10 mm Allen screw) – 115
Machine screws for counterweights 65 65
Machine screws for end cover, flywheel side
(Coat thread with sealant D)1010
Hex nuts for securing injectors 15 15
Pressure valve at injection pump 35 35
Collar nut for injector nozzle 85 85
L 41. M 41 40-50
Machine screws at balancing weight
bearing journals (4-cyl.) 30 30
Machine screws at drive gearwheel for balancing weights
(4-cyl.)(Coat thread with sealant D)7575
Hex nut for attaching spring bridge (governor) 25 25
Machine screws M 12 x190 (crankcase halves) 90 90
Flywheel bolts 135 200
Machine screws for gearwheel on crankshaft 30 30
Machine screws M 6 for securing cam tracks
(injection timer) 14 14
Hex bolts for connecting housing
(Coat thread with sealant D) 140 140
Support mount for front engine feet (Silent Pack) 130 130
Hex bolts for governor weight holder 25 25
Hex nut for cylinder head cover (pressure-cast version) – 10
Machine screws holding solenoid valve
to engine monitoring block – 6.5
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