- Yanmar 3JH5E, 4JH5E, 4JH-4TE, 4JH-HTE essential bolt torques
Yanmar 3JH5E, 4JH5E, 4JH-4TE, 4JH-HTE Main Bearing Bolt torque
3JH and 4JH
M12 x 1.5 bolts
98 Nm, 72 lb.ft
Yanmar 3JH5E, 4JH5E, 4JH-4TE, 4JH-HTE Connecting Rod Bolt torque
3JH and 4JH
M9 x 1.0 bolts
44 Nm, 33 lb.ft
Yanmar 3JH5E, 4JH5E, 4JH-4TE, 4JH-HTE Cylinder head Bolt torque
3JH and 4JH
M10 x 1.25 bolts
88 Nm, 65 lb.ft
- Yanmar 3TN-4TN Essential Bolt torques
Yanmar 3TN-4TN Main Bearing bolt torque
3TN66
54 Nm, 40 lb.ft
3TNA72
79 Nm, 58 lb.ft
3TN75/3TN78/4TN78
78 Nm, 57 lb.ft
3TN82/4TN82/3TN84/4TN84
98 Nm, 72 lb.ft
4TN100
196 Nm, 145 lb.ft
Yanmar 3TN-4TN Connecting Rod Bolt Torque
3TN66/3TNA72
23 Nm, 16.96 lb.ft
3TN75/3TN78/4TN78
39 Nm, 29 lb.ft
3TN82/4TN82/3TN84/4TN84
47 Nm, 35 lb.ft
4TN100
93 Nm, 69 lb.ft
Yanmar 3TN Cylinder Head Bolt Torque
3 Cylinder Engines
3TN66
34 Nm, 25 lb.ft
3TNA72
61 Nm, 45 lb.ft
3TN75/3TN78
69 Nm, 51 lb.ft
3TN82/3TN84
78 Nm, 58 lb.ft
Yanmar 4TN Cylinder Head Bolt Torque
4 Cylinder Engines
4TN78
69 Nm, 51 lb.ft
4TN82/4TN84
78 Nm, 58 lb.ft
4TN100
157 Nm, 116 lb.ft
- Yanmar 4NTE94, 4NTE98, 4NTE106 essential bolt torques
Yanmar 4NTE94, 4NTE98, 4NTE106 Main Bearing Bolt torque
4TNE94*98
M11 x 1.25 bolts
115 Nm
4TNE106 (T)
M14 x 1.5 bolts
200 Nm
Yanmar 4NTE94, 4NTE98, 4NTE106 Connecting Rod Bolt torque
4TNE94*98
M11 x 1.25 bolts
55 Nm
4TNE106 (T)
M11 x 1.0 bolts
80 Nm
Yanmar 4NTE94, 4NTE98, 4NTE106 Cylinder head Bolt torque
4TNE94*98
M11 x 1.25 bolts
110 Nm
4TNE106 (T)
M13 x 1.5 bolts
190 Nm
- Yanmar 4BY-6BY Essential Bolt torques
Yanmar 4BY-6BY Main Bearing bolt torque
4BY/6BY
Step 1 = 22 Nm, 16 lb.ft
Step 2 = 90 degrees
Yanmar 4BY-6BY Connecting Rod Bolt Torque
4BY/6BY
Step 1 = 5 Nm, 3.66 lb.ft
Step 2 = 20 Nm, 14.75 lb.ft
Step 3 = 70 degrees
Yanmar 4BY-6BY Cylinder Head Bolt Torque
4BY/6BY
Step 1 = Tighten all bolts
80 Nm, 59 lb.ft
Step 2 = Loosen all bolts at least
180 degrees
Step 3 = Tighten all bolts
50 Nm, 37 lb.ft
Step 4 = Tighten an additional
90 degrees
Step 5 = Tighten an additional
90 degrees
- Yanmar 6AYM Essential Bolt torques
Yanmar 6AYM Main Bearing bolt torque
Tighten the bolt-operating and non operating side
Step 1 = 49 +/- 5 Nm
Operating side bolt
Step 2 = angle 30 degrees
Non-Operating side bolt
Step 3 = angle 50 degrees
Operating side bolt
Step 4 = angle 68 degrees +/- 2 degrees (final)
Non-Operating side bolt
Step 5 = angle 68 degrees +/- 2 degrees (final)
Yanmar 6AYM Connecting Rod Bolt Torque
First (temporary) = 50 +/- 5 Nm
Second (temporary) = 70 +/- 5 Nm
Third time = 137 +/- 5 Nm
Yanmar 6AYM Cylinder Head Bolt Torque
Step 1 = 98 Nm
Step 2 = 471 Nm
Step 3 = Loosen all bolts completely
Step 4 = 98 Nm
Tighten bolts further from step 4 position
(angle gauge use)
Step 5 = 150 degrees
- Yanmar 6LP Essential Bolt torques
Yanmar 6LP Main Bearing bolt torque
Step 1 = 102.90 Nm
Step 2 = 90 degrees
Yanmar 6LP Connecting Rod Bolt Torque
Step 1 = 36.77 Nm
Step 2 = 90 degrees
Yanmar 3TN Cylinder Head Bolt Torque
6LP-DTE
Step 1 = 68.65 Nm
Step 2 = 90 degrees
Step 3 = Retighten further by 90 degrees
Yanmar 4TN Cylinder Head Bolt Torque
6LP-STE
Step 1 = 68.65 Nm
Step 2 = 90 degrees
Step 3 = Retighten further by 90 degrees
6LP-STE Bolt size
A = 121.5 mm
B = 133.5 mm
- Yanmar 6LY Essential Bolt torques
Yanmar 6LY(M)UTE.STE/UTEHD Main Bearing bolt torque
255 +/- 9.8 Nm
Yanmar 6LY(M)UTE.STE/UTEHD Connecting Rod Bolt Torque
137 +/- 4.9 Nm
Yanmar 6LY(M)UTE.STE/UTEHD Cylinder Head Bolt Torque
Step1 = 107.87 Nm
Step2 = 166.71 Nm
Step1 = 205.93 Nm
- Yanmar L-A Series Essential Bolt torques
Yanmar L-A Series Connecting Rod Bolt Torque
L40AE/L70AE
17.65-20.59 Nm, 13.0-15.2 lb.ft
L75AE/L100AE
36.77-41.67 Nm, 27.1-30.7 lb.ft
Yanmar L-A Series Cylinder Head Bolt Torque
L40AE/L48AE
Step1 = 27.45-31.38 Nm, 20.2-23.1 lb.ft
Step2 = 14.70 Nm, 10.8 lb.ft
L60AE/L70AE
Step1 = 41.18-45.11 Nm, 30.4-33.3 lb.ft
Step2 = 21.57 Nm, 15.9 lb.ft
L75AE/L100AE
Step1 = 52.95-56.87 Nm, 39.0-41.9 lb.ft
Step2 = 29.41 Nm, 21.7 lb.ft
- Yanmar TNV Essential Bolt torques
Yanmar TNV Main Bearing bolt torque
3TNV82A
76.4 – 80.4 Nm
3TNV84/84T/88/4TNV84/84T/88
93.2 – 98.1 Nm
4TNV106/4TNV106T
186.2 – 205.8 Nm
Yanmar TNV Connecting Rod Bolt Torque
3TNV82A
76.4 – 80.4 Nm
3TNV84/84T/88/4TNV84/84T/88
44.1 – 49.0 Nm
4TNV94L/4TNV98/98T
53.9 – 58.8 Nm
4TNV106/106T
78.5 – 83.4 Nm
Yanmar TNV Cylinder Head Bolt Torque
TNV82A
Step 1 = 30.0 Nm
Step 2 = 61.7 Nm
TNV84/88
Step 1 = 41.1 Nm
Step 2 = 85.3 Nm
4TNV94L/98
Step 1 = 49.0 Nm
Step 2 = 103.1 Nm
4TNV106(T)
Step 1 = 88.3 Nm
Step 2 = 188.0 Nm