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Engine cylinder head, valve gear > < Checking piston projection at TDC

A3 Mk1

4-cyl TDI®-Engine, Mechanical Components
Dismantling and assembling pistons and conrods
Piston and cylinder dimensions

Honing
dimension

Piston - ø

Cylinder bore - ø

Basic dimension

mm

79.47

79.51

1st undersize

mm

79.72

79.76

2nd undersize

mm

79.97

80.01

Engine cylinder head, valve gear > < Checking piston projection at TDC