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TIGHTENING TORQUES
(1) Special Tightening Torques
For " * " marked screws, bolts and nuts on under table, apply engine oil to their threads and seats before tightening.
 
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Cylinder Head Cover Screw Main Bearing Case Screw-1 Main Bearing Case Screw-2
  D1403
  D1703
  D1503
  D1803
  V1903
  V2003
  V2203
  V2403
6.9 to 11.3 N m
0.70 to 1.15 kgf m
5.1 to 8.3 ft-lbs
  D1403
  D1703
  D1503
  D1803
  V1903
  V2003
  V2203
  V2403
46.1 to 50.9 N m
4.7 to 5.2 kgf m
34.0 to 37.6 ft-lbs
  D1403
  D1703
  D1503
  D1803
  V1903
  V2003
  V2203
  V2403
68.6 to 73.5 N m
7.0 to 7.5 kgf m
50.6 to 54.2 ft-lbs
 
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Cylinder head screw
(A) 3 cylinder model   (B) 4 cylinder model
     
Cylinder head screw
  D1403
  D1703
  D1503
  D1803
  V1903
  V2003
  V2203
  V2403
93.1 to 98.0 N m
9.5 to 10.0 kgf m
68.7 to 72.3 ft-lbs
  D1403
  D1703
  D1503
  D1803
  V1903
  V2003
  V2203
  V2403
(A) 3 cylinder model

(B) 4 cylinder model
 
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Flywheel Screw Connecting Rod Screw Rocker Srm Bracket Screw
  D1403
  D1703
  D1503
  D1803
  V1903
  V2003
  V2203
  V2403
98.0 to 107.8 N m
10.0 to 11.0 kgf m
72.3 to 79.5 ft-lbs
  D1403
  D1703
  D1503
  D1803
  V1903
  V2003
  V2203
  V2403
44.1 to 49.0 N m
4.5 to 5.0 kgf m
32.5 to 36.2 ft-lbs
  D1403
  D1703
  D1503
  D1803
  V1903
  V2003
  V2203
  V2403
23.5 to 27.5 N m
2.4 to 2.8 kgf m
17.4 to 20.3 ft-lbs
 
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Idle gear shaft screw Bearing case cover screw Fan drive pulley mounting nut
  D1403
  D1703
  D1503
  D1803
  V1903
  V2003
  V2203
  V2403
23.5 to 27.5 N m
2.4 to 2.8 kgf m
17.4 to 20.3 ft-lbs
  D1403
  D1703
  D1503
  D1803
  V1903
  V2003
  V2203
  V2403
23.5 to 27.5 N m
2.4 to 2.8 kgf m
17.4 to 20.3 ft-lbs
  D1403
  D1703
  D1503
  D1803
  V1903
  V2003
  V2203
  V2403
137.3 to 156.9 N m
14.0 to 16.0 kgf m
101.3 to 115.7 ft-lbs
 
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Glow plug Nozzle holder clamp screw Oil switch taper screw
  D1403
  D1703
  D1503
  D1803
  V1903
  V2003
  V2203
  V2403
19.6 to 24.5 N m
2.0 to 2.5 kgf m
14.5 to 18.1 ft-lbs
  D1403
  D1703
  D1503
  D1803
  V1903
  V2003
  V2203
  V2403
25.5 to 29.4 N m
2.6 to 3.0 kgf m
18.8 to 21.7 ft-lbs
  D1403
  D1703
  D1503
  D1803
  V1903
  V2003
  V2203
  V2403
14.7 to 19.6 N m
1.5 to 2.0 kgf m
10.8 to 14.5 ft-lbs
 
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Injection pipe retaining nut Overflow pipe assembly retaining screw Camshaft set screw
  D1403
  D1703
  D1503
  D1803
  V1903
  V2003
  V2203
  V2403
14.7 to 24.5 N m
1.5 to 2.5 kgf m
10.8 to 18.1 ft-lbs
  D1403
  D1703
  D1503
  D1803
  V1903
  V2003
  V2203
  V2403
9.8 to 11.3 N m
1.00 to 1.15 kgf m
7.2 to 8.3 ft-lbs
  D1403
  D1703
  D1503
  D1803
  V1903
  V2003
  V2203
  V2403
23.5 to 27.5 N m
2.4 to 2.8 kgf m
17.4 to 20.3 ft-lbs
 
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Hi-idling body Balancer shaft set bolt Alternator pulley nut
  D1403
  D1703
  D1503
  D1803
  V1903
  V2003
  V2203
  V2403
44.1 to 49.0 N m
4.5 to 5.0 kgf m
32.6 to 36.3 ft-lbs
  D1403
  D1703
  D1503
  D1803
  V1903
  V2003
  V2203
  V2403
23.5 to 27.5 N m
2.4 to 2.8 kgf m
17.4 to 20.3 ft-lbs
  D1403
  D1703
  D1503
  D1803
  V1903
  V2003
  V2203
  V2403
58.3 to 78.9 N m
5.95 to 8.05 kgf m
43.0 to 58.2 ft-lbs
 
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General Tightening Torques
Screw and bolt material grades are shown by numbers punched on the screw and bolt heads.
Prior to tightening, be sure to check out the numbers as shown below.
None or 4 : Standard grade
7 : Special grade

 

Nominal Diameter

Standard Grade

Special Grade

M6

7.9 to 9.3 N m
0.80 to 0.95 kgf m
5.8 to 6.9 ft-lbs

7.9 to 9.3 N m
0.80 to 0.95 kgf m
5.8 to 6.9 ft-lbs

M8

7.9 to 9.3 N m
0.80 to 0.95 kgf m
5.8 to 6.9 ft-lbs

7.9 to 9.3 N m
0.80 to 0.95 kgf m
5.8 to 6.9 ft-lbs

M10

7.9 to 9.3 N m
0.80 to 0.95 kgf m
5.8 to 6.9 ft-lbs

7.9 to 9.3 N m
0.80 to 0.95 kgf m
5.8 to 6.9 ft-lbs

M12

7.9 to 9.3 N m
0.80 to 0.95 kgf m
5.8 to 6.9 ft-lbs

7.9 to 9.3 N m
0.80 to 0.95 kgf m
5.8 to 6.9 ft-lbs

 
     
 
Kubota parts