Standard Procedure - Piston Fitting
WARNING: This page is about a different variant/trim than selected.
- Use Cylinder Indicator (special tool #C-119, Cylinder Indicator) (2) to correctly measure the inside diameter of the cylinder bore (3). A cylinder indicator capable of reading in 0.003 mm (0.0001 in.) increments is required. If a cylinder indicator is not available, do not use an inside micrometer.
- Measure the inside diameter of the cylinder bore at a point 38.0 mm (1.5 inches) below top of bore (4). Start perpendicular (across or at 90°) to the axis of the crankshaft at point A and then take an additional bore reading 90° to that at point B.NOTE:
The coated pistons, piston pins and connecting rods are pre-assembled and serviced as an assembly.
- The piston and rod assembly is specific for the left cylinder bank (odd numbered) and the right cylinder bank (even numbered) and must not be interchanged.
- The coating material (1, 2) is applied to the piston after the final piston machining process. Measuring the outside diameter of a coated piston will not provide accurate results. Therefore measuring the inside diameter of the cylinder bore with a cylinder indicator is MANDATORY . To correctly select the proper size piston, a cylinder indicator capable of reading in 0.003 mm (0.0001 in.) increments is required.
- Piston installation into the cylinder bore requires slightly more pressure than that required for non-coated pistons. The bonded coating on the piston will give the appearance of a line-to-line fit with the cylinder bore.