Measuring Cylinder Bore

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Using the cylinder gauge VAS 6078, take measurements as shown > Diagram for measuring cylinder bore at three points in the cylinder, crosswise in transverse direction A and in longitudinal direction B.

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Diagram for measuring cylinder bore

Cylinder bore	New in mm	Maximum permitted deviation from nominal measurement in mm	Note
Nominal measurement	84.510 ± 0.005	0.08	Measure cylinder bore depth of 50 mm.