Service Data and Specifications (S.D.S.) — Inspection and Adjustment — CD17 (Cont'd)
EM-277spec tableCD17 diesel engine specifications.
PISTON, PISTON RING AND PISTON PIN
Piston
Piston (Unit: mm (in))
Piston skirt diameter — Standard
Grade / Sub-itemGrade No. 1
Value79.94 - 79.95 (3.1472 - 3.1476)
Piston skirt diameter — Standard
Grade / Sub-itemGrade No. 2
Value79.95 - 79.96 (3.1476 - 3.1480)
Piston skirt diameter — Standard
Grade / Sub-itemGrade No. 3
Value79.96 - 79.97 (3.1480 - 3.1484)
Piston skirt diameter — Standard
Grade / Sub-itemGrade No. 4
Value79.97 - 79.98 (3.1484 - 3.1488)
Piston skirt diameter — Standard
Grade / Sub-itemGrade No. 5
Value79.98 - 79.99 (3.1488 - 3.1492)
Piston skirt diameter — Oversize
Grade / Sub-itemStandard
Value79.96 - 80.01 (3.1480 - 3.1500)
Piston skirt diameter — Oversize
Grade / Sub-item0.5 (0.020)
Value80.44 - 80.49 (3.1669 - 3.1689)
Piston skirt diameter — Oversize
Grade / Sub-item1.0 (0.039)
Value80.94 - 80.99 (3.1866 - 3.1886)
Measure position (From Top)
Grade / Sub-item
Value60 (2.36)
Piston pin hole diameter
Grade / Sub-item
Value23.991 - 23.999 (0.9445 - 0.9448)
Piston ring
Piston ring (Unit: mm (in))
Side clearance
RingTop
Standard0.020 - 0.060 (0.0008 - 0.0024)
Limit0.20 (0.0079)
Side clearance
Ring2nd
Standard0.040 - 0.080 (0.0016 - 0.0031)
Limit0.15 (0.0059)
Side clearance
RingOil
Standard0.030 - 0.070 (0.0012 - 0.0028)
Limit0.10 (0.0039)
Ring gap
RingTop
Standard0.20 - 0.35 (0.0079 - 0.0138)
Limit1.0 (0.039)
Ring gap
Ring2nd
Standard0.20 - 0.35 (0.0079 - 0.0138)
Limit0.7 (0.028)
Ring gap
RingOil
Standard0.30 - 0.45 (0.0118 - 0.0177)
Limit0.6 (0.024)
Piston pin
Piston pin (Unit: mm (in))
Piston pin outer diameter
Value23.994 - 24.000 (0.9446 - 0.9449)
Interference fit of piston pin to piston
Value0 - 0.004 (0 - 0.0002)
Piston pin to connecting rod clearance
Value0.025 - 0.044 (0.0010 - 0.0017)
CONNECTING ROD
Connecting rod (Unit: mm (in))
Bend [per 100 mm (3.94 in)]
Sub-itemStandard
ValueLess than 0.15 (0.0059)
Torsion
Sub-itemStandard
ValueLess than 0.30 (0.0118)
Piston pin bore dia.
Sub-item
Value24.025 - 24.038 (0.9459 - 0.9464)
Big end play
Sub-itemLimit
Value0.3 (0.012)
CRANKSHAFT
Crankshaft (Unit: mm (in))
Main journal dia.
Sub-itemGrade No. 0
Value52.967 - 52.975 (2.0853 - 2.0856)
Main journal dia.
Sub-itemGrade No. 1
Value52.959 - 52.967 (2.0850 - 2.0853)
Main journal dia.
Sub-itemGrade No. 2
Value52.951 - 52.959 (2.0847 - 2.0850)
Pin journal dia.
Sub-item
Value44.961 - 44.974 (1.7701 - 1.7706)
Out-of-round (X − Y) and taper (A − B)
Sub-itemStandard
ValueLess than 0.005 (0.0002)
Out-of-round (X − Y) and taper (A − B)
Sub-itemLimit
Value0.03 (0.0012)
Runout
Sub-itemStandard
ValueLess than 0.05 (0.0020)
Runout
Sub-itemLimit
Value0.03 (0.0012)
Free end play
Sub-itemStandard
Value0.05 - 0.18 (0.0020 - 0.0071)
Free end play
Sub-itemLimit
Value0.3 (0.012)