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Mercury Optimax 150 User Manual

Mercury Optimax 150
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LEFT HAND NON-RATCHETING
Page 6B-16 90-855347R1 JANUARY 1999
NOTE: Try Step “a” first. If insert cannot be removed with Step “a,” use Step “b.”
a. Drive water pump insert out of water pump cover with a punch and hammer.
b. Drill two 3/16 in. (4.8 mm) diameter holes thru the top of water pump cover (but
not thru insert). Drive insert out of cover with a punch and hammer.
51873
51874
a
a-Drill Two Holes at These Locations
7. Remove impeller from driveshaft. (It may be necessary to use a punch and hammer
to drive impeller upward on driveshaft. In extreme cases, it may be necessary to split
hub of impeller with a hammer and chisel.)
8. Once impeller is removed, remove impeller drive key from driveshaft.
9. Remove water pump face plate and both gaskets (one above and below face plate)
from water pump base.
10. Using 2 pry bars, positioned and padded as shown, lift water pump base up and off
driveshaft.
51874
a
a-Pads
11. Remove (and discard) O-ring from O-ring groove on water pump base.
12. Using a screwdriver, pry oil seals out of water pump base from gear housing side of
base.

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Mercury Optimax 150 Specifications

General IconGeneral
Horsepower150 HP
Engine TypeV6
Alternator Output60 amp / 756 watt
StartingElectric
SteeringRemote
Displacement2.5 L
Fuel Induction System2-Stage Direct Fuel Injection (DFI)
Shaft Length20", 25"
Dry Weight431 lbs (20 in), 439 lbs (25 in)

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