Checking the connecting rods

• Check that the outside diameter of the pistons is within the specified limits; if not, replace the piston complete with seal rings and gudgeon pin.

NOTE: The outside diameter of the piston should be measured at right angles to the gudgeon pin axis and 8 mm from the lower edge of the skirt.

Checking the connecting rods

1. Fit the caps on the connecting rods and fasten them with their screws to the specified torque.
2. Check that the diameter of the connecting rod big end is within the specified limits; if not, replace the connecting rods.

24 ÷ 26 Nm + 60°
2.5 ÷ 2.7 kgm + 60°

• Check the squaring of the connecting rods using suitable equipment; if squaring is less than perfect, replace the connecting rod.
• Check that the difference in weight between the connecting rods complete with half bearings, caps and screws is within the specified limits.

1. Check that the end floats between the second ring/scraper ring and their seats on the piston are within the specified limits.

• Check that the difference in weight between the pistons is within the specified limits.

NOTE: The arrows indicate the areas from which it is possible to remove material to obtain an equal weight.