YANMAR

136 CHAPTER SIX
Piston ring side clearance (continued)
Oil ring
Ring end gap
Top ring
Second ring
Oil ring
Piston pin diameter
Piston pin hole diameter
in piston
in rod
Piston pin clearance
in rod
in piston
Piston ring width
Top and second ring
Oil control ring
Crankshaft main journal diameter
Timing gear end
lntermediate
Flywheel end
Journal outof-round-max.
Crankshaft end play
Crankshaft runout-max.
Main bearing clearance
Timing gear end
lntermediate
Flywheel end
lntermediate thrust bearing width-min.
intermediate thrust bearing width-mln.
2GM, 2GM20,3GM, 3GM30
3HM, 3HM35
Crankpin diameter
Journal outof-round-max.
Crankpin bearlng clearance
Connecting rod side clearance
Cylinder head warpage--max.
Camshaft
Valve lobe lift
Fuel pump lobe lift
Journal diameter
End journal
Center journal
Runout
Timing gear backlash
Maximum allowable
Push rod runout-*ax.
Valve lifter
Type
Outside diameter
Outside diameter-min.
Clearance in block
Max. clearance
Valve face angle
Valve seat angle
Valve head margin
Seat width (int. and exh.)
Valve depth-max.
Valve stem clearance
Intake
Exhaust
Tablo 3 ENalNE SPECIFICATIONS (3HM AND 3HM31) (continued)
0.020-0.055 mm (0.00064.0022 in.)
0.25-0.45 mm (0.01 0-0.018 in.)
0.20-0.40 mm (0.0064.016 in.)
0.25-0.45 mm (0.01 0-0.018 in.)
22.991-23.000 mm (0.9052-0.9055 in.)
22.995-23.008 mm (0.9053-0.9058 in.)
23.000 mm (0.9055 in.)
0.025-0.047 mm (0.001 0-0.0019 in.)
0.005 mm tight-0.017 mm loose
(0.0002 in. tight-0.0007 in. loose)
1.97-1.99 mm (0.07764.0783 in.)
3.97-3.99 mm (0.1563-0.1571 in.)
46.950-46.964 mm (1.8484-1 .a490 in.)
46.950-46.964 mm (1 .8484-1.8490 in.)
64.950-64.964 mm (2.5571 -2.5576 in.)
0.01 mm (0.0004 in.)
0.09-0.18 mm (0.0035-0.007 in.)
0.1 5 mm (0.006 in.)
0.036-0.095 mm (0.0014-0.0037 in.)
0.036-0.095 mm (0.0014-0.0037 in.)
0.0364.099 mm (0.0014-0.0039 in.)
29.63 mm(1.166 in.)
24.63 mm (0.970 in.)
29.63 mm (1.1 66 in.)
43.950-43.964 mm (1.7303-1.7309 in.)
0.01 mm (0.0004 in.)
0.036-0.092 mm (0.00144.0036 in.)
0.2-0.4 mm (0.0089.016 in.)
0.07 mm (0.003 in.)
35.000 mm (1.3780 in.)
33.500 mm (1.3189 in.)
30.000 mm (1.1 81 1 in.)
41.500 mm (1.6339 in.)
0.02 mm max. (0.0008 in. max.)
0.05-0.13 mm (0.002-0.005 In.)
0.3 mm (0.012 in.)
0.03 mm (0.0012 in.)
Mechanical
10.000 mm (0.3937 in.)
9.95 mm (0.3917 in.)
0.01 W.O4O mm (0.0004-0.0016 in.)
0.10 mm (0.004 in.)
45"
45"
0.85-1.1 5 mm (0.034-0.045 in.)
1.77 mm (0.070 In.)
1.55 mm (0.061 in.)
0.040-0.065 mm (0.001 64.0026 in.)
0.045-0.070 mm (0.00189.0028 in.)
(continued)