Crank mechanism — specifications (Sierra)

Piston diameters (mm)

Engine	1.6 dm³ LSD	1.8 dm³ REB
Nominal standard diameters:
- group 1	81,265 – 81,275	86,145 – 86,155
- group 2	81,275 – 81,285	86,155 – 86,165
- group 3	81,285 – 81,295	86,165 – 86,175
- group 4	81,295 – 81,305	86,165 – 86,175
Repair diameters:
- standard	81,290 – 81,315	86,170 – 86,195
- repair 0.5	81,790 – 81,815	86,670 – 86,695
- repair 1.0	82,290 – 82,315	87,170 – 87,195
Clearance of new pistons in cylinders	0,015 – 0,500

Piston pins

The piston pins of the 1.6 dm³ LSD and 1.8 dm³ REB engines are identical to the pins of the 1.6 dm³ LCT and LCS engines.