Cylinder Bore Inner Diameter

Using a bore gauge, measure the cylinder bore for wear, out-of-round and taper at six different points on each cylinder. [(X) and (Y) directions at (A), (B) and (C)] [(Y) is in longitudinal direction of the engine].

Fig 1: Measuring Cylinder Bore Inner Diameter
Courtesy of SUZUKI OF AMERICA CORP.

NOTE: When determining cylinder bore grade, measure cylinder bore at (B) position.

Standard inner diameter:

89.010 - 89.030 mm (3.5043 - 3.5051 in)

Wear limit:

0.2 mm (0.008 in)

Out-of-round [Difference between (X) and (Y)]:

0.015 mm (0.0006 in)

Taper limit [Difference between (A) and (C)]:

0.01 mm (0.0004 in)
If the measured value exceeds the limit, or if there are scratches and/or seizure on the cylinder inner wall, hone or re-bore the cylinder inner wall.