Xem Studiomeasured geometry

Library › Hardware › Pistons Ø16, 20, 25 and 30 with a Ø3 wrist-pin boss

trunk piston Ø25 (= the liner bore) × 22

trunk piston Ø25 (= the liner bore) × 22: closed 2 mm crown, open skirt, two wrist-pin bosses 7 apart for a 5 mm con-rod's small end, Ø3 wrist pin across the bore 12.8 above the crown face

Exact dimensions. True size, no printing tolerance added. Threads are plain cylinders at the major diameter.

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From the full sheet

Pistons Ø16, 20, 25 and 30 with a Ø3 wrist-pin boss: every size, notes, mating features and sources. What small piston has a 3 mm wrist pin?

Other sizes