1.13
Section 1
Safety and General Information
1
General Torque Values
Metric Fastener Torque Recommendations for Standard Applications
Size
M4 1.2 (11) 1.7 (15) 2.9 (26) 4.1 (36) 5.0 (44) 2.0 (18)
M5 2.5 (22) 3.2 (28) 5.8 (51) 8.1 (72) 9.7 (86) 4.0 (35)
M6 4.3 (38) 5.7 (50) 9.9 (88) 14.0 (124) 16.5 (146) 6.8 (60)
M8 10.5 (93) 13.6 (120) 24.4 (216) 33.9 (300) 40.7 (360) 17.0 (150)
Tightening Torque: N·m (ft. lb.) + or - 10%
Property Class
M10 21.7 (16) 27.1 (20) 47.5 (35) 66.4 (49) 81.4 (60) 33.9 (25)
M12 36.6 (27) 47.5 (35) 82.7 (61) 116.6 (86) 139.7 (103) 61.0 (45)
M14 58.3 (43) 76.4 (55) 131.5 (97) 184.4 (136) 219.7 (162) 94.9 (70)
Noncritical
Fasteners
Into Aluminum
Noncritical
Fasteners
Into Aluminum
Tightening Torque: N·m (in. lb.) + or - 10%
Property Class
4.8
5.8 8.8 10.9 12.9
4.8
5.8 8.8 10.9 12.9
N·m = in. lb. x 0.113
N·m = . lb. x 1.356
in. lb. = N·m x 8.85
. lb. = N·m x 0.737
Torque
Conversions
Oil Drain Plugs Tightening Torque: N•m (English)
Size
1/8" NPT
1/4"
3/8"
1/2"
3/4"
X-708-1
Into Cast Iron
–
17.0 (150 in. lb.)
20.3 (180 in. lb.)
27.1 (20 . lb.)
33.9 (25 . lb.)
27.1/33.9 (20/25 . lb.)
Into Aluminum
4.5 (40 in. lb.)
11.3 (100 in. lb.)
13.6 (120 in. lb.)
17.6 (13 . lb.)
21.7 (16 . lb.)
27.1/33.9 (20/25 . lb.)
Valves and Valve Lifters (Continued)
Intake Valve Stem Diameter
New .............................................................................................................. 5.982/6.0 mm (0.2355/0.2362 in.)
Exhaust Valve Guide I.D.
New .............................................................................................................. 6.038/6.058 mm (0.2377/0.2385 in.)
Max. Wear Limit ......................................................................................... 6.160 mm (0.2425 in.)
Exhaust Valve Stem Diameter
New .............................................................................................................. 5.970/5.988 mm (0.235/0.2357 in.)
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