Service Limits & General Specifications

CONNECTING ROD BEARING (BIG END)





Install the connecting rod cap without the connecting rod bearing installed. After tightening the connecting rod nut to the specified torque, measure the connecting rod large end inner diameter using an inside micrometer.
Standard: 55.000 - 55.013 mm (2.1654 - 2.1659 inch)

CONNECTING ROD BUSHING OIL CLEARANCE (SMALL END)
Inner Diameter of Connecting Rod (Small End)





Measure inner diameter of bushing.
Standard: 22.000 - 22.012 mm (0.8661 - 0.8666 inch)

Outer Diameter of Piston Pin





Measure outer diameter of piston pin.
Standard: 21.989 - 22.001 mm (0.8657 - 0.8662 inch)

Connecting Rod Bushing Oil Clearance (Small End)





(Connecting rod small end oil clearance) = (Inner diameter of connecting rod small end) - (Outer diameter of piston pin)
Standard: 0.005 - 0.017 mm (0.0002 - 0.007 inch)
^ If the measured value exceeds the standard, replace the connecting rod assembly and/or piston and piston pin assembly.
^ If replacing the piston and piston pin assembly, refer to the Table for Selective Fitting for Piston to select the piston corresponding to the applicable bore grade of the cylinder block to be used. Refer to "HOW TO SELECT PISTON".

Factory installed parts grading:







Service parts apply only to grade 0.

OIL CLEARANCE OF CONNECTING ROD BEARING
Method of Measurement





^ Install the connecting rod bearings to the connecting rod and the cap, and tighten the connecting rod nut to the specified torque. Using a inside micrometer measure the inner diameter of connecting rod bearing.
(Oil clearance) = (Inner diameter of connecting rod bearing) - (Outer diameter of crankshaft pin)
Standard: 0.020 - 0.045 mm (0.0008 - 0.0018 inch)
Limit: 0.055 mm (0.0022 inch)
^ If clearance cannot be adjusted within the standard, grind crankshaft pin and use undersized bearing. Refer to "HOW TO SELECT CONNECTING ROD BEARING".

Method of Using Plastigage





^ Remove oil and dust on the crankshaft pin and the surfaces of each bearing completely.
^ Cut a plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding oil holes.
^ Install the connecting rod bearings to the connecting rod cap, and tighten the connecting rod nut to the specified torque.

CAUTION: Never rotate the crankshaft.

^ Remove the connecting rod cap and bearings, and using the scale on the plastigage bag, measure the plastigage width.

NOTE: The procedure when the measured value exceeds the repair limit is same as that described in "Method of Measurement".





Connecting Rod Bearing Clearance





CONNECTING ROD BEARING





Undersize





Bearing Clearance