Cylinder Bore

NOTE: The cylinder bores should be measured at normal room temperature, 21°C (70°F).

The cylinder walls should be checked for out-of-round and taper with Tool C119 or equivalent (Fig 1). (Refer to ENGINE - SPECIFICATIONS ). If the cylinder walls are badly scuffed or scored, the cylinder block should be replaced, and new pistons and rings fitted.

Fig 1: Checking Cylinder Bore Size

Courtesy of DAIMLERCHRYSLER CORP.

Measure the cylinder bore at three levels in directions A and B (Fig 1). Top measurement should be 10 mm (3/8 in.) down and bottom measurement should be 10 mm (3/8 in.) up from bottom of bore. (Refer to ENGINE - SPECIFICATIONS ).