Cylinder Block - Yanmar 3TNV Series Service Manual

12. Service Standards
(2) Idle gear shaft and bushing
Inspection item
Shaft outside diameter
Bushing inside diameter
Clearance
(3) Backlash of each gear
Model
Crank gear, cam gear, idle gear,
3TNV82A 88
fuel injection pump gear and PTO gear
Crank gear, cam gear, idle gear,
fuel injection pump gear and PTO gear
4TNV94L
4TNV98(T)
Lubricating oil pump gear
4TNV106(T)
Balancer drive gear
(only for 4TNV106(T))

12.2.3 Cylinder block

(1) Cylinder block
Inspection item
Cylinder inside diameter
Cylinder bore
Standard
45.950 45.975
46.000 46.025
0.025 0.075
Inspection item
3TNV82A
TNV84
TNV88
4TNV94L
4TNV98
4TNV106(T)
Roundness
Inclination
190
Limit Reference page
45.900
4.3.5(2)
46.075
0.175
Standard
0.07 0.15
0.08 0.14
0.09 0.15
0.12 0.18
Standard
82.000 82.030
84.000 84.030
88.000 88.030
94.000 94.030
98.000 98.030
106.000 106.030
0.01 or less
mm
mm
Reference
Limit
page
0.17
0.16
4.3.4.
0.17
0.20
mm
Reference
Limit
page
82.200
84.200
88.200
94.130
4.4.5.(1)
98.130
106.130
0.03