Chrysler 70, 75 and 85 HP Outboard Motors Service Manual OB 3438, Page 133Get this manual
DisassemblyPiston Assembly Inspection and RepairPower Head
1Push piston assembly out of cylinder bore2Remove piston rings from piston, using ring expanderSpecial Tool NoT 8926 Figure 27 3Remove piston pin from piston assembly, using piston pin toolSpecial Tool NoT 2990Figure 28
Refer to specification section for dimensions1Remove carbon from exhaust ports and all exhaust passages, using cleaning solution or rotary brushSpecial Tool NoT 2991
AInsert end of shim bar marked "295" between large diameter of spacer and rollers
Carbon build up restricts exhaust gases and greatly reduces engine performance 2Clean all dried cement off gasket surfaces with lacquer thinner
The shim bar has two (2) slots, marked "310" and "295" The "295" end is used to remove piston pin because it will slide between spacer and connecting rod BPlace piston on pillow block with piston pin in hole of pillow blockCPlace stepped end of drive pin in I.Dof piston pin DPress piston pin outFigure 28