Honda Workshop Service and Repair Manuals

Crankshaft Main Bearing: Specifications
Service Specifications

Crankshaft Journals

Crankshaft

Main journal diameter

Standard or New ......................................................................................................................................  54.976 - 55.000 mm (2.1644 - 2.1654 inch)

Rod journal diameter

Standard or New ......................................................................................................................................  44.976 - 45.000 mm (1.7707 - 1.7717 inch)

Rod/main journal taper

Standard or New ..................................................................................................................................................................  0.0025 mm (0.0001 inch)
Service Limit .........................................................................................................................................................................  0.005 mm (0.0002 inch)

Rod/main journal out-of-round

Standard or New ..................................................................................................................................................................  0.0025 mm (0.0001 inch)
Service Limit .........................................................................................................................................................................  0.005 mm (0.0002 inch)

End play

Standard or New ..................................................................................................................................................  0.10 - 0.35 mm (0.004 - 0.014 inch)
Service Limit .............................................................................................................................................................................  0.45 mm (0.018 inch)

Runout

Standard or New .......................................................................................................................................................  0.03 mm (0.001 inch) maximum
Service Limit .............................................................................................................................................................................  0.04 mm (0.002 inch)

Main Bearing Clearance

Crankshaft bearing

Main bearing-to-journal oil clearance

No.1 journal; No.5 journal

Standard or New ....................................................................................................................................  0.018 - 0.036 mm (0.0007 - 0.0014 inch)
Service Limit .......................................................................................................................................................................  0.05 mm (0.002 inch)

No.2, 3 and 4 journals

Standard or New ....................................................................................................................................  0.024 - 0.042 mm (0.0009 - 0.0017 inch)
Service Limit .......................................................................................................................................................................  0.05 mm (0.002 inch)

Rod bearing clearance

Standard or New ..........................................................................................................................................  0.024 - 0.042 mm (0.0009 - 0.0017 inch)
Service Limit .............................................................................................................................................................................  0.05 mm (0.002 inch)