Piston, Engine

Piston Ring Gap, Checking.

Fig. 1:

- Push ring squarely from above down to approximately 15 mm from bottom end of cylinder. To push down, use a piston without rings.

Ring To Groove Clearance, Checking

Fig. 2:

- Clean groove before checking.

Piston, Checking

Fig. 3:

- Measure pistons approx. 6 mm from the lower edge of the skirt1 at 90° to the piston pin axis.

Deviation from nominal dimension: Max. 0.04 mm

Piston And Cylinder Dimensions