Cylinder Block Assembly: Testing and Inspection
Pistons and Cylinder Bore, Checking
Piston Ring Gap, Checking
Special tools, testers and auxiliary items required
• Feeler Gauge
- Insert the ring at a right angle from above, to the lower end of cylinder approximately 15 mm from the cylinder edge.
Piston Ring Groove Clearance, Checking
Special tools, testers and auxiliary items required
• Feeler Gauge
- Clean the groove in the ring before checking.
Piston, Checking
Special tools, testers and auxiliary items required
• Micrometer 75-100 mm (VAS 6071)
- Take the measurement approximately 10 mm from the lower edge of the piston skirt and offset 90° to the piston axis.
Deviation from nominal dimension: Max. 0.04 mm
Cylinder Bore, Checking
• The cylinder bore must not be measured if the cylinder block is secured to the engine stand with the engine lateral bracket (T03001) , or else results may be incorrect.
Special tools, testers and auxiliary items required
• Cylinder Gauge (VAS 6078)
- Measure diagonally at 3 positions transversely - A - and longitudinally - B -.
Deviation from nominal size: Max. 0.08 mm.
Piston and Cylinder Reconditioning Dimension
• 1 The measurement does not include the graphite coating, which is 0.02 mm thick. The graphite coating wears off.