Piston And Piston Ring Combinations - Mercury 150 EFI Service Manual

POWERHEAD
7. Make sure lockrings are properly seated in piston grooves.
a - Lockring Installation Tool

Piston and Piston Ring Combinations

All 153 cu. in. (2.5 Liter) models have two half keystone (half tapered) rings.
.056 in.
.056 in.
Page 4A-58
b
b
a a
51086
a a
51086
b - Lockring
90-883728 JULY 2001