Yanmar 4JH4E - Cylinder Block

13. Service standards
322
13.2.3 Cylinder block
(1) Cylinder block
(2) Crankshaft
(3) Thrust bearing
mm
Inspection item Standard Limit Reference page
Cylinder inside diameter
3JH4E/ 4JH4E 88.000-88.030 88.200
5.1.5
4JH4-TE/ 4JH4-HTE 84.000-84.030 84.200
Cylinder bore
Roundness
0.01 or less 0.03
Inclination
mm
Inspection item Standard Limit Reference page
Bending (1/2 the dial gauge reading) - 0.02 5.5.1(2)
Crank pin
Pin outside diameter 47.952-47.962 47.902
5.4.2(2)
5.5.1(3)
5.5.2(2)
Metal inside diameter 48.000-48.026 -
Metal thickness 1.492-1.500 -
Clearance 0.038-0.083 0.150
Crank journal
(Selective pairing)
Journal outside diameter 49.952-49.962 49.902
Metal inside diameter 51.000-51.010 -
Metal thickness 1.995-2.010 -
Clearance 0.038-0.068 0.150
mm
Inspection item Standard Limit Reference page
Crankshaft side gap 0.14-0.22 0.30 5.5.1(4)