Mercury Optimax 115 Service Manual page 225

POWERHEAD
PISTON
DIAMETER
Dimension
"A" at Right
Angle (90 )
to Piston
Pin
REEDS Reed Stand 0pen (Max.)
Special Tools
1. Lifting Eye 91-90455
2. Powerhead Stand 91-30591A1
3. Piston Ring Expander 91-24697
4. Lockring Removal Tool 91-52952A1
5. Piston Pin Tool 91-74607A1
6. Driver Head 91-55919
Page 4A-2
3.4925 in.
(88.7095 mm
Using a micrometer, measure dimension
"A" at location shown. Dimension "A"
should be 3.4925 in.
DARD size piston (new) Dimension "A"
will be 0.001 - 0.0015 less if coating is
0.700
worn off piston (used)
17.78mm
0.020 in. (0.50 mm)
.0005 in.
.0127 mm)
.0005 for a STAN-
90-855347R1 JANUARY 1999