Cylinder sealing surface lapped in against cylinder head with grinding paste.
Cylinder original bore, just got a light honing.
Max piston ring groove clearence is 0,15mm.
New piston ring mounted, measured 0,5mm.
C = Max piston ring end gap 0,8mm
Piston ring end gap 0,7 mm. still within specs.
Piston to cylinder clearence is 0,15 mm. Wear limit 0,30 mm.
No wear on piston pin.
81,42 original size piston.