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MECHANICAL
Standard clearance between pis-
ton and piston pin
Piston pin
Degree of fit
Ring closed gap
Piston ring
Ring groove gap
Bend or twist per 100 mm (3.94
Connecting
in) in length
rod
Thrust clearance of large end
Oil clearance
Bearing of
Bearing size
large end
(Thickness at cen-
ter)
Bushing of
Clearance between piston pin
small end
and bushing
Bend limit
Crank pin and crank
journal
Crank pin outer
diameter
Crankshaft
Crank journal outer
diameter
Thrust clearance
Oil clearance
Bearing size (Thick-
ness at center)
Main bear-
ing
General Description
Top ring
mm (in)
Second ring
Oil ring
Top ring
mm (in)
Second ring
Standard
0.03 (0.0012) US
mm (in)
0.05 (0.0020) US
0.25 (0.0098) US
Out-of-roundness
Grinding limit (dia.)
Standard
0.03 (0.0012) US
mm (in)
0.05 (0.0020) US
0.25 (0.0098) US
Standard
0.03 (0.0012) US
mm (in)
0.05 (0.0020) US
0.25 (0.0098) US
Standard
0.03 (0.0012) US
#1, #3
0.05 (0.0020) US
0.25 (0.0098) US
mm (in)
Standard
0.03 (0.0012) US
#2, #4, #5
0.05 (0.0020) US
0.25 (0.0098) US
ME(H4DOTC)-4
mm (in) Standard
Standard
Standard
Standard
Standard
Standard
mm (in) Limit
mm (in) Standard
mm (in) Standard
mm (in) Standard
mm (in)
mm (in)
mm (in)
mm (in) Standard
mm (in) Standard
0.004 — 0.008 (0.0002 — 0.0003)
Piston pin must be fitted into position with
thumb at 20°C (68°F).
Outer circle side: 0.20 — 0.25 (0.0079 —
0.0098)
Inner circle side: 0.20 — 0.30 (0.0079 —
0.012)
0.40 — 0.50 (0.016 — 0.020)
0.20 — 0.50 (0.0079 — 0.0197)
0.040 — 0.080 (0.0016 — 0.0031)
0.030 — 0.070 (0.0012 — 0.0028)
0.10 (0.0039)
0.070 — 0.330 (0.0028 — 0.0130)
0.026 — 0.052 (0.0010 — 0.0020)
1.486 — 1.498 (0.0585 — 0.0590)
1.504 — 1.512 (0.0592 — 0.0595)
1.514 — 1.522 (0.0596 — 0.0599)
1.614 — 1.622 (0.0635 — 0.0639)
0 — 0.022 (0 — 0.0009)
0.035 (0.0014)
0.005 (0.0002) or less
Crank pin: To 51.750 (2.0374)
Crank journal: To 59.750 (2.3524)
51.984 — 52.000 (2.0466 — 2.0472)
51.954 — 51.970 (2.0454 — 2.0461)
51.934 — 51.950 (2.0447 — 2.0453)
51.734 — 51.750 (2.0368 — 2.0374)
59.992 — 60.008 (2.3619 — 2.3625)
59.962 — 59.978 (2.3607 — 2.3613)
59.942 — 59.958 (2.3599 — 2.3606)
59.742 — 59.758 (2.3521 — 2.3527)
0.030 — 0.115 (0.0012 — 0.0045)
0.010 — 0.030 (0.00039 — 0.0012)
1.998 — 2.011 (0.0787 — 0.0792)
2.017 — 2.020 (0.0794 — 0.0795)
2.027 — 2.030 (0.0798 — 0.0799)
2.127 — 2.130 (0.0837 — 0.0839)
2.000 — 2.013 (0.0787 — 0.0793)
2.019 — 2.022 (0.0795 — 0.0796)
2.029 — 2.032 (0.0799 — 0.0800)
2.129 — 2.132 (0.0838 — 0.0839)
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