CUMMINS B3.3 - Connecting Rod, Piston Ring and Piston Pin

Diesel Engine Specifications
111
Connecting Rod, Piston Ring and Piston Pin
Ref Inspection Item Standard Remarks
PISTON PIN
Outer Diameter
Nominal OD:
30.00 mm
[1.181 in]
—
1
Clearance
0.004 to 0.018 mm
[0.0002 to 0.0007 in]
Clearance Limit:
0.05 mm
[0.002 in]
PISTON RING
A Top
0.30 to 0.45 mm
[0.012 to 0.018 in]
Clearance Limit:
2.00 mm
[0.079 in]
B Second
0.30 to 0.45 mm
[0.012 to 0.018 in]
Clearance Limit:
2.00 mm
[0.079 in]
C
Piston Ring Gap
Oil
0.25 to 0.45 mm
[0.0098 to 0.018 in]
Clearance Limit:
1.50 mm
[0.059 in]
CONNECTING ROD
2 Bend (B)/Torsion (T)
Maximum:
0.20/0.30 mm
[0.0078/0.0118 in]
Repair Limit:
0.25/0.35 mm
[0.0098/0.0138 in]
3 Inner Diameter of Bushing Hole
33.00 mm
[1.299 in]
Tolerance:
0.025 mm
[0.001 in]
CONNECTING ROD BUSHING
1
Clearance Between Bushing and
Piston Ring (Small End)
0.020 to 0.039 mm
[0.0008 to 0.0015 in]
Nominal OD:
30.00 mm
[1.18 in]
Clearance Limit:
0.100 mm
[0.0039 in]
CONNECTING ROD BEARING
4 Inner Diameter STD
57.00 mm
[2.244 in]
Repair Limit:
57.20 mm
[2.252 in]
18900022