Connecting Rod Side Clearence, Out of Round, & Diameter

CONNECTING ROD SMALL END BORE









Diameter 20.012 to 20.021 mm (0.7879 to 0.7882 in.)






(a) Subtract the piston pin outer diameter measurement from the piston pin bore diameter measurement.

Standard oil clearance 0.002 to 0.011 mm (0.0001 to 0.0004 in.)
Maximum oil clearance 0.011 mm (0.0004 in.)

(b) Subtract the piston pin outer diameter measurement from the connecting rod small end bore diameter measurement.

Standard oil clearance 0.001 to 0.017 mm (-0.00004 to 0.0007 in.)
Maximum oil clearance 0.017 mm (0.0007 in.)

CONNECTING ROD BOLT





Using vernier calipers, measure the tension portion diameter of the bolts.

Standard diameter 6.6 to 6.7 mm (0.260 to 0.264 in.)
Minimum diameter 6.4 mm (0.252 in.)

If the diameter is less than minimum, replace the connecting rod bolt.

INSPECT CONNECTING ROD

Using a connecting rod aligner and feeler gauge, check the connecting rod alignment.





Check for misalignment.

Maximum misalignment 0.05 mm (0.0020 in.) per 100 mm (3.94 in.)

If the misalignment is greater than maximum, replace the connecting rod assembly.





Check for twist.

Maximum twist 0.05 mm (0.0020 in.) per 100 mm (3.94 in.)

If the twist is greater than maximum, replace the connecting rod assembly.

INSPECT CONNECTING ROD BOLT





Using vernier calipers, measure the tension portion diameter of the bolts.

Standard diameter 6.6 to 6.7 mm (0.260 to 0.264 in.)
Minimum diameter 6.4 mm (0.252 in.)

If the diameter is less than minimum, replace the connecting rod bolt.