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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 |
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DH850 |
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D850 |
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D950 |
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V1100 |
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V1200 |
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48 to 51 ft-lbs |
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DH850 |
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D850 |
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D950 |
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V1100 |
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V1200 |
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15 to 17 ft-lbs |
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DH850 |
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D850 |
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D950 |
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V1100 |
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V1200 |
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22 to 25 ft-lbs |
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| Flywheel Bolts |
Con Rod Bolts ( Big Ends ) |
Rocker Arm Bracket Studs |
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DH850 |
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D850 |
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D950 |
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V1100 |
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V1200 |
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40 to 43 ft-lbs |
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DH850 |
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D850 |
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D950 |
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V1100 |
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V1200 |
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20 to 22 ft-lbs |
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DH850 |
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D850 |
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D950 |
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V1100 |
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V1200 |
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13 to 15 ft-lbs |
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Glow Plugs
Drain Plugs |
Nozzle Holders |
Crankshaft Nut |
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DH850 |
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D850 |
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D950 |
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V1100 |
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V1200 |
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15 to 18 ft-lbs
29 to 36 ft-lbs |
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DH850 |
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D850 |
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D950 |
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V1100 |
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V1200 |
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22 to 36 ft-lbs |
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DH850 |
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D850 |
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D950 |
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V1100 |
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V1200 |
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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 |
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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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