Yanmar 3TNV82A-B Service Manual page 133

TNV DI Service Manual
Before You Begin Servicing ............................................................ 6-3
Introduction...................................................................................... 6-6
Cylinder Head Specifications .......................................................... 6-6
Adjustment Specifications ......................................................... 6-6
Cylinder Head............................................................................ 6-6
Intake / Exhaust Valve and Guide ............................................. 6-7
Push Rod................................................................................... 6-9
Rocker Arm and Shaft ............................................................... 6-9
Valve Spring ............................................................................ 6-10
Camshaft and Timing Gear Train Specifications........................... 6-11
Camshaft ................................................................................. 6-11
Idler Gear Shaft and Bushing .................................................. 6-13
Timing Gear Backlash ............................................................. 6-13
Crankshaft and Piston Specifications............................................ 6-14
Crankshaft ............................................................................... 6-14
Thrust Bearing ......................................................................... 6-15
Piston....................................................................................... 6-16
Piston Ring .............................................................................. 6-18
Connecting Rod....................................................................... 6-22
Tappet ..................................................................................... 6-23
Cylinder Block Specifications ........................................................ 6-24
Cylinder Block.......................................................................... 6-24
Special Torque Chart .................................................................... 6-25
Torque for Bolts and Nuts........................................................ 6-25
Special Service Tools.................................................................... 6-28
Measuring Instruments.................................................................. 6-32
2-Valve Cylinder Head .................................................................. 6-34
2-Valve Cylinder Head Components ....................................... 6-34
TNV DI Service Manual
Section 6
ENGINE
Page
6-1