Piston, Pistons Rings and Cylinder Bore, Checking

Piston, Pistons Rings and Cylinder Bore, Checking

Piston Ring Gap, Checking





Special tools, testers and auxiliary items required

• Feeler gauge

- Insert ring into lower cylinder opening at a right angle from above, approximately 15 mm from cylinder edge.





Piston Ring Groove Clearance, Checking





Special tools, testers and auxiliary items required

• Feeler gauge

- Before measuring, clean ring groove.





Pistons, Checking





Special tools, testers and auxiliary items required

• External micrometer 75 to 100 mm

- Take measurement approximately 10 mm from lower edge of piston skirt and offset 90° to piston axis.

Deviation from nominal dimension: max. 0.04 mm

Cylinder Bore, Checking





Special tools, testers and auxiliary items required

• Internal dial gauge 50 to 100 mm

- Measure diagonally at 3 positions transversely - A - and longitudinally - B -.

Deviation from nominal size: max. 0.08 mm.

• Cylinder bore must not be measured if cylinder block is secured to engine stand with holding fixture (T03001), or else results may be incorrect.