Yanmar 4TNV98, Service Manual

Page: 145 / 246

4TNV98 & 4TNE98 Diesel Engine Section 4. Fuel System 143
Fuel System Specifications
Special Torque Chart
Component Tightening Torque
Lubricating Oil Application
(Thread Portion and Seat Surface)
Fuel Injector Retainer Bolt
29 ft·lb
(39.2 N·m; 4 kgf·m)
Not Applied
Fuel Pump Drive
Gear Nut
4TNV98
83-91 ft·lb
(113-123 N·m;
11.5-12.5 kgf·m)
Not Applied
High-Pressure Fuel Injection Line Nuts
22-25 ft·lb
(29-34 N·m;
3.0-3.5 kgf·m)
Not Applied
Fuel Return Line Bolts
69-87 in·lb
(7.8-9.8 N·m;
0.8-1.0 kgf·m)
Not Applied
Fuel Injection Pump Mounting Nuts
17-21 ft·lb
(23-28 N·m;
2.3-2.9 kgf·m)
Not Applied
Fuel Injector Nozzle Case Nut
30-33 ft·lb
(39.2-44.1 N·m;
4-4.5 kgf·m)
Not Applied
Fuel Injection Pump
Plunger Plug
4TNV98
30-33 ft·lb
(40-45 N·m;
4.1-4.6 kgf·m)
Not Applied