SEAT Workshop Service and Repair Manuals > Leon Mk1 > Power unit | 4 cylinder Injection engine (1.6 l engine, BiFuel) | Enginecrankshaft group, pistons

Checking pistons

Special tools and workshop equipment required

t	External micrometer 75…100 mm

Checking pistons

–	Measure pistons approx. 12 mm from the lower edge of skirt, at 90 ° to the piston pin axis. Difference in relation to max. specified measurement 0.04 mm. Nominal dimension → Chapter

Checking piston ring gap

–	Insert ring at right angles from above into lower cylinder opening approx. 15 mm from edge of cylinder.

¹⁾	No wear limit details available

Checking ring-to-groove clearance

First clean piston ring housing groove.

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