Repair Procedures: Inspection: Piston

1. Remove the carbon deposits on the top of the piston using a scraper.
2. Clean the piston ring groove using a broken ring.
3. Thoroughly clean the piston using solvent and brush.

Clearance between piston and cylinder: 

0.04 - 0.06 mm (0.0016 - 0.0024 in.)

1. Measure the cylinder bore inner diameter at position in the thrust and axial direction using a cylinder bore gauge.

   Cylinder bore diameter: 

   92.00 - 92.03 mm (3.6220 - 3.6232 in.)

   Courtesy of HYUNDAI MOTOR AMERICA

2. Measure the piston outer diameter at 14.0 mm (0.55118 in.) from bottom land of the piston.

   Piston outside diameter: 

   91.95 - 91.98 mm (3.6201 - 3.6213 in.)

Courtesy of HYUNDAI MOTOR AMERICA

Piston-to-cylinder clearance: 

0.04 - 0.06 mm (0.0016 - 0.0024 in.)

1. Check the cylinder bore size mark on the lateral side of cylinder block. The upper side is left bank (2-4-6) and the lower side is right bank (1-3-5).

   Courtesy of HYUNDAI MOTOR AMERICA

   CYLINDER BORE SIZE INNER DIAMETER SPECIFICATIONS
   
   

   Class	Mark	Cylinder bore inner diameter
   A	A	92.00 - 92.01 mm (3.6220 - 3.6224 in.)
   B	B	92.01 - 92.02 mm (3.6224 - 3.6228 in.)
   C	C	92.02 - 92.03 mm (3.6228 - 3.6232 in.)

2. Check the piston size code (A) and the front mark (B) on the piston top face.