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 bolt to the specified torque, measure the connecting rod large end inside diameter. Refer to "ASSEMBLY".
Standard: 57.000 - 57.013 mm (2.2441 - 2.2446 inches)
^ If measurement exceeds the standard, replace connecting rod.

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





^ Measure inside diameter of bushing using suitable tool.
Standard: 22.000 - 22.006 mm (0.8661 - 0.8664 inches)

Piston Pin Diameter





^ Measure diameter of piston pin using suitable tool.
Standard: 21.989 - 21.995 mm (0.8657 - 0.8659 inches)

Connecting Rod Bushing Oil Clearance (Small End)





(Connecting rod small end oil clearance) = (Inside diameter of confecting rod small end) - (Piston pin diameter)
Standard: 0.005 - 0.017 mm (0.0002 - 0.0007 inches)
^ If 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:








^ Only grade 0 is available.

CONNECTING ROD BEARING OIL CLEARANCE
Method of Measurement
^ Install connecting rod bearings to the connecting rod and cap. Tighten connecting rod bolts to the specified torque. Refer to "ASSEMBLY".





Measure inside diameter of connecting rod bearing. (Oil clearance) = (Inside diameter of connecting rod bearing) - (Crankshaft pin diameter)
Standard: 0.020 - 0.039 mm (0.0008 - 0.0015 inches)
Limit: 0.055 mm (0.0022 inches)
^ If clearance cannot be adjusted within the standard, grind crank shaft pin and use undersized bearing. Refer to "HOW TO SELECT MAIN BEARING".

Method of Using Plastigage





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

CAUTION: Do not rotate crankshaft with plastigage installed.

^ Remove the connecting rod bearing cap and bearings. Measure the plastigage width using the scale on the plastigage bag.

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

CRUSH HEIGHT OF CONNECTING ROD BEARING





^ When connecting rod bearing cap is removed after being tightened to the specified torque with the connecting rod bearings installed, the tip end of the bearing must protrude. Refer to "ASSEMBLY" for the tightening procedure.
Standard: There must be crush height.
^ If standard is not met, replace connecting rod bearings.

CONNECTING ROD BOLT DIAMETER
^ Measure diameter "d" at position shown.





^ When "d" is out of specifications (when it becomes thinner), replace bolt with a new one.
Limit: 7.75 mm (0.3051 inches) or less.