34
ROUTINE SERVICE
COOLING SYSTEM
Tachometer Pulse Setting
(
SystemCheck
)
Confirm accuracy of tachometer reading.
•
Adjust dial on back of t achometer to required
setting (the outboard should not be running).
Water Pump Overboard Indicator
A steady stre am o f water should flow from the
overboard indicator.
Operating Temperature
An outboard run at id le speed sh ould achieve a
temperature base d on the engine’ s thermost atic
control. In gene ral, the powerhea d temperature
should reach at least 104°F (40°C) after five min-
utes of idling. Check that the powerhead reaches
idle temperature. Refer to
Idle Speed
Make sure the outboard idles within the specified
idle RPM range. If the outboard is run on a flush-
ing device, the idle speed and quality may not be
representative of actual in water use.
COOLING SYSTEM
Regularly inspect cooling system components for
corrosion, damage, leaks, or restrictions:
•
water intake screens
•
water pump
•
all internal water passages
•
thermostats
•
all external water hoses and fittings
•
vapor separator cooling passages and fittings
•
EMM
cooling passages and fittings
•
overboard water pressure indicator.
Water Intake Screens
Inspect condition of water int ake scre ens. Clean
or replace as needed.
Confirm function of overboard water pressure indi-
cator.
Outboard Model
Tachometer Setting
40–90 HP
6 Pulse or 12 Pole
1.
Water pump overboard indicator
008469
1
1.
Water intake screen
2.
Overboard indicator
001212
008470
1
2
Содержание E-Tec 40 HP
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Страница 224: ...222 POWERHEAD POWERHEAD VIEWS 2 Cylinder Port Dressed Powerhead 2 Cylinder Starboard Dressed Powerhead 008428 008159...
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