Connecting rods (page 2 of 2)

A Piston Ring

B Ring Expander

1. Using a ring expander, remove the old piston rings.
2. Clean all ring grooves thoroughly.

Note:

• Use a squared - off broken ring or ring groove cleaner with blade to fit piston grooves.
• Top and 2nd ring grooves are 1.2 mm wide and the oil ring groove is 2.8 mm wide.
• File down blade if necessary.
• If the piston is to be separated from the connecting rod, do not install new rings yet.

CAUTION: Do not use a wire brush to clean the ring grooves, or cut ring grooves deeper with cleaning tools.

3. Install new rings in the correct sequence and position.

Note: Do not use old piston rings.

After installing a new set of rings, measure the ring - to - groove clearances:

Top Ring Clearance
Standard (New): 0.035 ÷ 0.060 mm
Service Limit: 0.13 mm

Second Ring Clearance
Standard (New): 0.030 ÷ 0.055 mm
Service Limit: 0.13 mm