Golf GTI L4-1781cc 1.8L SOHC (RD) (1987)
Piston: Specifications
Piston Diameter [1]:
Standard .................................................................................................................................................................................... 80.98 mm (3.1882 in.)
1st oversize ............................................................................................................................................................................... 81.23 mm (3.1980 in.)
2nd oversize .............................................................................................................................................................................. 81.48 mm (3.2079 in.)
Piston Wear Limits:
Max ............................................................................................................................................................................................ 0.04 mm (0.0016 in.)
Piston-to-Cylinder Clearance ................................................................................................................................................................ 0.03 mm (0.0012 in.)
Max ............................................................................................................................................................................................ 0.07 mm (0.0028 in.)
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[1]: Measure the piston approximately 6-10 mm (0.2-0.4 in.) from the bottom of the piston skirt and at right angles (90°) to the piston pin. Nominal
piston diameters are also marked on the piston crowns.