Yanmar 3TNV88F - ENGINE

3TNV88F Service Manual
6-1
3TNV88F Service Manual
Section 6
ENGINE
Page
Before You Begin Servicing ............................................................ 6-3
Introduction...................................................................................... 6-4
Cylinder Head Specifications .......................................................... 6-4
Adjustment Specifications ......................................................... 6-4
Cylinder Head............................................................................ 6-4
Intake/Exhaust Valve and Guide............................................... 6-4
Push Rod................................................................................... 6-5
Rocker Arm and Shaft............................................................... 6-5
Valve Spring.............................................................................. 6-5
Camshaft and Timing Gear Train Specifications............................. 6-6
Camshaft................................................................................... 6-6
Idler Gear Shaft and Bushing.................................................... 6-6
Timing Gear Backlash ............................................................... 6-6
Crankshaft and Piston Specifications.............................................. 6-7
Crankshaft................................................................................. 6-7
Thrust Bearing........................................................................... 6-7
Piston......................................................................................... 6-7
Piston Ring................................................................................ 6-8
Connecting Rod......................................................................... 6-8
Tappet ....................................................................................... 6-9
Cylinder Block Specifications .......................................................... 6-9
Cylinder Block............................................................................ 6-9
Special Torque Chart .................................................................... 6-10
Torque for Bolts and Nuts........................................................ 6-10
Special Service Tools.................................................................... 6-11
Measuring Instruments.................................................................. 6-13
Cylinder Head................................................................................ 6-15
Cylinder Head Components .................................................... 6-15
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