SEAT Workshop Service and Repair Manuals > Leon Mk2 > Power unit | 4-Cylinder injection engine (1.4 l engine with direct injection engine, turbocharger and displacement compressor) | Enginecrankshaft group, pistons | Dismantling and assembling pistons and conrods

Checking pistons

Special tools and workshop equipment required

t	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 between actual and nominal diameter: not more than 0.04 mm. Nominal dimension → Chapter

Checking piston ring gap

–	Push ring squarely from above down to approx. 15 mm from bottom end of cylinder.

¹⁾	no wear limit details possible

Checking ring-to-groove clearance

First clean piston ring housing groove.

SEAT Workshop Service and Repair Manuals