MAINTENANCE - 1B - 17
90-816462 2-695
6. Insert a small wire (repeatedly) to make sure that
vent holes and water drain holes and passages
(as shown) are unobstructed and open.
71216
70134
b
c
d
e
f
a
c
f
a - Speedometer Pitot Tube
b - Trim Tab Cavity Vent Hole
c - Trim Tab Cavity Drain Passage
d - Gear Housing Water Drain Hole
(One Each - Port and Starboard)
e - Gear Housing Cavity Vent Hole
f - Gear Housing Cavity Drain Hole
7. Crank engine over SLIGHTLY, with starter motor,
to purge any water trapped in seawater pickup
pump. DO NOT ALLOW ENGINE TO START.
!
CAUTION
If boat is in the water or is to remain in the water,
seacock (if so equipped) must remain closed un-
til engine is to be restarted, to prevent water from
flowing back into cooling system. If boat is not
fitted with a seacock, seawater inlet hose must re-
main disconnected and plugged, to prevent water
from flowing into cooling system and/or boat. As
a precautionary measure, attach a tag to the igni-
tion switch or steering wheel with the warning
that the seacock must be opened or the seawater
inlet hose reconnected prior to starting the en-
gine.
8. After cooling system has been drained complete-
ly, coat threads of drain plugs with Quicksilver
Perfect Seal and reinstall. Tighten drain plugs se-
curely. Reconnect hoses and tighten all hose
clamps securely. If NOT equipped with sea-
cock: seawater inlet hose must remain discon-
nected and plugged until engine is to be restarted.
IMPORTANT: MerCruiser recommends that pro-
pylene glycol antifreeze (nontoxic and biode-
gradable, which makes it friendly to lakes and riv-
ers) be used in sea-water section of the cooling
system for cold weather or extended storage.
Make sure that the propylene glycol antifreeze
contains a rust inhibitor and is recommended for
use in marine engines. Be certain to follow the
propylene glycol manufacturer’s recommenda-
tions.
9. For additional assurance against freezing and
rust, remove the thermostat cover and thermo-
stat. Fill the engine seawater cooling system with
a mixture of antifreeze and tap water mixed to
manufacturer’s recommendation to protect en-
gine to the lowest temperature to which it will be
exposed during cold weather or extended stor-
age. Using a new gasket, reinstall thermostat and
cover. Tighten cover bolts to 30 lb. ft. (41 N·m).
72589
b
c
d
a
f
g
e
a - Lifting Eye
b - Cover
c - Gasket
d - Thermostat
e - Hose
f - Fitting
g - Housing
NOTE: Hoses shown removed only to indicate flow.
Do not remove hoses.
Содержание 13
Страница 1: ...13 Printed in U S A 90 816462 2 695 1995 Brunswick Corporation GM 4 Cylinder MARINE ENGINES ...
Страница 2: ...90 816462 2 695 0 ...
Страница 7: ...1 A IMPORTANT INFORMATION GENERAL INFORMATION 72000 ...
Страница 15: ...1 B 50617 IMPORTANT INFORMATION MAINTENANCE ...
Страница 36: ...1 C IMPORTANT INFORMATION TROUBLESHOOTING ...
Страница 74: ...2 A 50633 REMOVAL AND INSTALLATION 4 CYL ALPHA ONE DRIVE ...
Страница 88: ...3 A 26790 ENGINE 181 CID 3 0L 4 CYLINDER GM ENGINE ...
Страница 137: ...4 A 72079 ELECTRICAL SYSTEMS STARTING SYSTEM ...
Страница 170: ...4 B 71855 ELECTRICAL SYSTEMS IGNITION SYSTEM ...
Страница 197: ...ELECTRICAL SYSTEMS CHARGING SYSTEM 4 C 72078 ...
Страница 237: ...4 D 72747 ELECTRICAL SYSTEMS INSTRUMENTATION ...
Страница 250: ...4 E 72938 ELECTRICAL SYSTEMS WIRING DIAGRAMS ...
Страница 264: ...5 A FUEL SYSTEM FUEL PUMP ...
Страница 271: ...5 B 72681 FUEL SYSTEM MERCARB 2 BARREL CARBURETOR ...
Страница 300: ...6 A 50628 COOLING SYSTEM SEAWATER COOLED MODELS ...
Страница 309: ...6 B 73665 COOLING SYSTEM CLOSED COOLING MODELS ...
Страница 325: ...C 6 EXHAUST SYSTEM MANIFOLD ...
Страница 331: ...7 A 71317 POWER STEERING PUMP ...