Measuring Piston-Ring Vertical Clearance

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Measure piston-ring vertical clearance.

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Piston-ring vertical clearance

1.1 Clean the ring groove on the piston.
1.2 Fit piston ring on the ring groove of the piston > Piston-ring vertical clearance
1.3 Guide a feeler gauge into the gap between the piston ring and ring groove and read off the value > Piston-ring vertical clearance

Piston ring	New in mm	Wear limit in mm
1. Compression ring	0, 03-0, 07	Not determined
2. Compression ring	0, 02-0, 06	Not determined
Oil scraper ring	Cannot be measured	-