Cylinder Block: Inspection

Fig 1: Measuring Wear And Taper In Directions X And Y

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Cylinder Bore Size 

Standard (New): 75.00 - 75.02 mm (2.953 - 2.954 in)

Service Limit: 75.07 mm (2.956 in)

Oversize

0.25: 75.25 - 75.27 mm (2.9626 - 2.9634 in)

0.50: 75.50 - 75.52 mm (2.9724 - 2.9732 in)

Bore Taper 

Limit: (Difference between first and third measurement) 0.05 mm (0.002 in) 

• If measurements in any cylinder are beyond the Oversize Bore Service Limit, replace the block.
• If the block is to be rebored, refer to PISTON CLEARANCE INSPECTION  after reboring.

Reboring Limit: 0.50 mm (0.020 in) 

Measure along the edges and across the center as shown.

Fig 2: Measuring Along Edges And Across Center

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Engine Block Warpage: 

Standard (New): 0.07 mm (0.003 in) max. 

Service Limit: 0.10 mm (0.004 in) 

Fig 3: Checking Engine Block Warpage

Courtesy of AMERICAN HONDA MOTOR CO., INC.