Checking the condition and repairing the piston and piston rings (Hyundai Accent MC)

1. Use a scraper to remove carbon deposits from the piston bottom.

2. Using a broken piston ring or a suitable tool, clean the piston grooves.

3. Using a soft brush and solvent, thoroughly clean the pistons.

4. Measure the piston outside diameter at a distance of 39.15-39.87 mm from the piston crown. Standard value: 76.47-76.50 mm (1.6 L); 75.47-75.50 mm (1.4 l).

4. Measure the piston outside diameter at a distance of 39.15-39.87 mm from the…

5. Calculate the clearance between the piston and the cylinder. Compare the result with the nominal value. Nominal value: 0.02-0.04 mm.

6. Using a set of flat feeler gauges, check the clearance between the new piston ring and the piston groove. Standard value: 0.04-0.085 mm (compression ring); 0.08-0.175 mm (oil scraper ring). If the gap is greater than 1.0 mm, replace the piston.

6. Using a set of flat feeler gauges, check the clearance between the new…

7. Install the piston ring into the cylinder at right angles to the stacks, carefully pressing it in with the piston. Using a set of flat feeler gauges, measure the gap in the piston ring joint. If the gap in the joint is greater than the maximum permissible value, replace the ring. If the gap is much greater than the permissible value, check the inner diameter of the cylinder.