Threaded connection / Tightening torque Nm (kgf m)
Main bearing cap bolts:
- Vertical 430-470 (43-47)
- Horizontal 100-120 (10-12)
Crankshaft hub bolt 431-490 (44-50)
Bolts for connecting rod caps 200–220 (20–22)
Flywheel housing bolts 100–125 (10–12.5)
Flywheel bolts:
with locking plates for two bolts 200–220 (20–22)
with plate for all bolts 235–255 (24–26)
Bolts of fastening of an arm of a forward support of the engine 90–110 (9–11)
Bots for fastening the upper cover of the cylinder block 25–32 (2.5–3.2)
Cylinder head stud nuts 240–260 (24–26)
Nuts for fastening the axles of the rocker arms 120–150 (12–15)
Starter bracket bolt 70–90 (7–9)
Starter bracket mounting bolts 45–62 (4.5–6.2)
Nuts for injector brackets 50–62 (5–6.2)
Injection advance clutch nut 130–150 (13–15)
High pressure fuel pump fittings 100–120 (10–12)
Nuts for 60–80 nozzles (6–8)
Nozzle fitting 8–10 (8–10)
Camshaft gear nut 270–300 (27–30)
Nut for fastening the driven gear of the fuel pump drive 140–180 (14–18)
Threaded connections of the high pressure fuel pump drive coupling:
- bolts for fastening the plates to the driven coupling half 32–40 (3.2–4)
- other 44-60 (4.4-6.0)
Nut of the axle of the pulley of the tensioner of the pneumatic compressor drive 120–150 (12–15)
10-20 (1-2) Compressor Drive Tensioner Tensioner Bolt Nut
Nuts for rocker arm adjustment screws 44–56 (4.4–5.6)
Oil pump mounting bolts 90–100 (9–10)
Oil sump drain plug 140–160 (14–16)
High pressure fuel pump mounting bolts 28–36 (2.8–3.6)
High pressure fuel line nuts 18-25 (1.8-2.5)
Turbocharger mounting bolts 36–44 (3.6–4.4)
Exhaust manifold bolts 36-44 (3.6-4.4)
Low pressure fuel line bolts:
- M10 = 20–25 (2–2.5)
- M14 = 40–50 (4–5)
- M16 = 48-50 (4.8-6)
Bolts for fastening the clutch housing to the gearbox housing 137–157 (14–16)* / 216–245 (22–25)**
Bolts for fastening the clutch housing to the flywheel housing: М12 = 70–80 (7–8)
Bolts for fastening the spacer to the crankcase of the main box 123–157 (12.5–16)
Bolts for fastening the crankcase to the spacer:
- pre-tightening 20-30 (2-3)
- final tightening 79–98 (8–10)
Bolts for securing the upper cover of the crankcase of the main box 35–49 (3.6–5)* / 49–54 (5.0–5.5)**
Axles of the shift fork of the range 118–128 (12–13)
Bolts for securing the input shaft cover 23.5–35 (2.4–3.6)
Bolts for fastening the gear coupling of the lower range to the spacer 49–55 (5–5.6)
Output flange bolt 431-490 (44-50)
Note:
* - for YaMZ-238VM and YaMZ-2381 gearboxes;
** - for YaMZ-239 gearboxes.