Pleasurecraft Marine Pleasurecraft 302/2A Owner's Manual - page 27
Flushing Instructions
NOTE: When engine is operated in salt water, flush it with
fresh water periodically and before storage. If
engine is flushed while boat is in water, water
intake must have a sea water cock installed between
water pickup and pump inlet.
CAUTION: DO NOT operate engine without cooling
water flowing through water pump, or water pump
will be damaged, and subsequent engine damage
may result.
1. Close sea water cock (if flushed while boat is in water).
2. Remove hose clamp and inlet hose from water pump
inlet.
3. Connect length of hose to pump inlet and city water tap
and open tap.
4. Place the remote control lever in neutral position and
start the engine. Operate the engine at 500 to 600 RPM
in neutral gear until engine reaches normal operating
temperature to circulate flushing water.
5. Check that water is being discharged out exhaust outlets
and watch water temperature gauge on instrument panel
to prevent overheating.
6. Allow engine to run until discharged water is clear.
7. Stop engine and remove flushing hose. Fasten water
intake line securely to pump inlet with hose clamp.
8. Open sea water cock before restarting engine.
IMPORTANT: DO NOT increase engine speed
above 600 RPM or water pump damage may
occur.
Closed Cooling System Filling
16 Qts. Capacity with 14 Lb. (6.35kg) Pressure Gap
1. Fill expansion tank with solution of clean water and
permanent type anti-freeze. Mix to proportions of 50%
water and 50% anti-freeze. If solutions are not
premixed, pour 2 gals. anti-freeze in system first and
complete filling with water slowly until tank runs over.
2. Start engine and run for 5 minutes.
IMPORTANT: Do not operate engine without
cooling water flowing through sea water pick-
up pump, as pump will be damaged.
3. Stop engine and check coolant level in expansion tank.
Normal coolant level will fill expansion tank halfway.
Add coolant, if necessary. If coolant level is above
normal, excess will flow out overflow tube when engine
reaches operating temperature.
IMPORTANT: Drain sea water section of
cooling system if engine is removed from
service in below freezing temperature.
4. Check coolant level after first open-throttle boat test.
CAUTION: Reservoir is equipped with a 14 lb.
(6.35kg) pressure cap. To remove cap, turn a
quarter of a turn to allow pressure in cooling
system to escape. Then turn cap all-the-way off.
Check coolant level periodically and add coolant if
necessary. If level is excessively low, check system for leaks
and repair as necessary.
Drain closed cooling system and fill with new coolant at
least once each year.
Draining Instructions
Fresh Water Section
1. Remove fill cap from reservoir.
CAUTION: Reservoir is equipped with a 14 lb. (6.35
kg) pressure cap. To remove cap, turn a quarter of
a turn to allow pressure in cooling system to
escape. Then turn cap all-the-way off.
2. Remove drain plugs and open petcocks which are
located as follows:
Heat Exchanger - One plug located in bottom of
exchanger at the rear. Remove only the plug closest to
the front of the engine.
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