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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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Head Bolts & Nuts Main Bearing Main Bearing Case Bolts
  DH850
  D850
  D950
  V1100
  V1200
48 to 51 ft-lbs
  DH850
  D850
  D950
  V1100
  V1200
15 to 17 ft-lbs
  DH850
  D850
  D950
  V1100
  V1200
22 to 25 ft-lbs
 
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Flywheel Bolts Con Rod Bolts ( Big Ends ) Rocker Arm Bracket Studs
  DH850
  D850
  D950
  V1100
  V1200
40 to 43 ft-lbs
  DH850
  D850
  D950
  V1100
  V1200
20 to 22 ft-lbs
  DH850
  D850
  D950
  V1100
  V1200
13 to 15 ft-lbs
 
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Glow Plugs
Drain Plugs
Nozzle Holders Crankshaft Nut
  DH850
  D850
  D950
  V1100
  V1200
15 to 18 ft-lbs
29 to 36 ft-lbs
  DH850
  D850
  D950
  V1100
  V1200
22 to 36 ft-lbs
  DH850
  D850
  D950
  V1100
  V1200
101 to 116 ft-lbs
102 to 115 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

 
     
 
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