Mercury Optimax 115 User Manual

POWERHEAD
Page 4A-46 90-855347R1 JANUARY 1999
13. Rotate crankshaft several times (using powerhead stand) to assure free operation
(no binds and catching).
Connecting Rod Cap Alignment
Check each connecting rod cap for correct alignment. If not aligned, a ridge can be seen
or felt at the separating line as shown below. Correct any misalignment.
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Ä
Ä
Ä
Ä
Side View
Correct
End View
Correct
Side View
Incorrect-Cap
on Backwards
End View
Incorrect-Cap
on Backwards
ÄÄ
ÄÄ
ÄÄ
ÄÄ
End View
Incorrect-
Not Aligned
14. Verify that no piston rings were broken during installation by pressing in on each piston
ring thru exhaust port using a screwdriver. If no spring tension exists (ring fails to re-
turn to position), it’s likely ring is broken and must be replaced.
51852
a
a-Screwdriver
Crankcase Cover Installation
1. Thoroughly remove all oil from mating surfaces of crankcase cover and cylinder block
with Loctite 7649 Primer (92-809824).
2. Install gasket strips into grooves in crankcase cover. Trim end of each gasket strip
flush with edge of cover as shown.
51852
a
b
a-Gasket Strips
b-Edge of Cover

Mercury Optimax 115 Specifications

General

Fuel Induction System	2-stage Direct Fuel Injection (DFI)
Alternator Amp	60 amp / 756 watt
Steering	Remote
Cylinders	3
Starting	Electric
Displacement	1.5 L
Bore x Stroke	89 x 76 mm
Shaft Length	20" (508 mm)
Horsepower	115 HP