Repair Procedures: Inspection: Piston: Notes

1. Using a gasket scraper, remove the carbon from the piston top.
2. Using a groove cleaning tool or broken ring, clean the piston ring grooves.
3. Using solvent and a brush, thoroughly clean the piston.

Piston-to-cylinder clearance: 

0.02 - 0.04 mm (0.0008 - 0.0016 in)

1. Using a cylinder bore gauge, measure the cylinder bore diameter at position in the thrust and axial direction.

   Cylinder bore diameter: 

   77.00 - 77.03 mm (3.0315 - 3.0327 in)

   Courtesy of KIA MOTORS AMERICA, INC.

2. Measure the piston outside diameter at 12 mm (0.4724 in) from top land of the piston.

Piston outside diameter: 

76.97 - 77.00 mm (3.0303 - 3.0315 in)

Piston-to-cylinder clearance: 

0.02 - 0.04 mm (0.0008 - 0.0016 in)

1. Check the cylinder bore size mark on the side of the cylinder block.

   Courtesy of KIA MOTORS AMERICA, INC.

   Cylinder Bore Difference 

   Mark	Cylinder bore inner diameter
   A	77.00 - 77.01 mm (3.0315 - 3.0319 in)
   B	77.01 - 77.02 mm (3.0319 - 3.0323 in)
   C	77.02 - 77.03 mm (3.0323 - 3.0327 in)

2. Check the piston size mark on the piston top face.

Courtesy of KIA MOTORS AMERICA, INC.

A: Grade

S: ISG type

G: Gasoline engine

6: 1.6L