RS 4 Quattro Sedan V8-4.2L (BNS) (2007)
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Piston Ring: Testing and Inspection
Piston Ring End Gap, Measuring
Piston Ring End Gap, Measuring
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Slide piston ring down from above at a right angle to cylinder wall until it is approximately 15 mm from bottom edge of cylinder.
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When sliding in, use a piston without piston rings.
