6A-6 - SEAWATER COOLING MODELS
90-823225--1 1096
Stern Drive Unit Seawater
Pickup Pump Output Test
If an overheating problem exists, use this test to de-
termine if a sufficient amount of water is being
supplied to cool engine.
IMPORTANT: The following information should
be observed before proceeding with test:
•
BOAT MUST BE IN THE WATER FOR THIS
TEST. This test CANNOT BE performed with a
flush-test device and water hose.
•
The ability of this test to detect a problem is
greatly dependent upon the accuracy in
which it is performed. An error in setting the
engine RPM, timing the test or measuring the
water output will affect the overall accuracy
of the test and may produce misleading re-
sults. To help ensure accurate results, a shop
tachometer with an error of less than 5%
should be used. The boat tachometer defi-
nitely should not be used as its accuracy is
questionable. A stop watch should be used to
time the duration of the test to help ensure
that the accuracy is maintained within one
second. An 8 U.S. qt. (7.6 L) or larger capacity
container should be used to measure water
output.
•
Due to the manner in which this test is per-
formed, it may not be possible to detect a
marginal condition or a high-speed water
pump output problem.
1. Remove water inlet hose, which runs between
gimbal housing water tube and engine, and re-
place with another hose of same diameter, but
approximately 3 ft. (1 m) longer. Hose should be
wire reinforced or of adequate wall thickness to
prevent it from kinking when performing test.
Clamp hose at gimbal housing water tube only.
Do not clamp hose at engine end.
72614
b
c
a
a - Water Tube
b - Hose Clamp
c - Water Hose
2. Place an 8 U.S. qt. (7.6 L) or larger container near
unclamped end of hose.
!
CAUTION
Do not run engine for more than 15 seconds with
hose disconnected, in next step, as internal dam-
age to engine and exhaust system may result.
3. With assistance of another person, start engine
and adjust speed to exactly 1000 RPM while
holding unclamped end of hose on connection on
engine. Remove hose from connection on engine
and direct water flow into container for exactly 15
seconds. At the end of 15 seconds, direct the wa-
ter flow overboard, return engine to idle and stop
engine. Reconnect hose to engine.
4. Measure quantity of water discharged into con-
tainer and compare with specifications given in
chart following.
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Страница 7: ...A 1 72000 IMPORTANT INFORMATION GENERAL INFORMATION...
Страница 16: ...B 1 IMPORTANT INFORMATION MAINTENANCE...
Страница 59: ...C 1 IMPORTANT INFORMATION TROUBLESHOOTING...
Страница 92: ...A 2 72975 REMOVAL AND INSTALLATION MCM MODELS ALPHA ONE DRIVES...
Страница 103: ...B 2 70246 REMOVAL AND INSTALLATION MCM MODELS ALPHA ONE DRIVES WITH DRIVESHAFT EXTENSION...
Страница 120: ...2 72580 C REMOVAL AND INSTALLATION MCM MODELS BRAVO DRIVES...
Страница 135: ...D 2 70246 REMOVAL AND INSTALLATION MCM MODELS BRAVO DRIVES WITH DRIVESHAFT EXTENSION...
Страница 154: ...E 2 70648 REMOVAL AND INSTALLATION MIE MODELS VELVET DRIVE TRANSMISSIONS...
Страница 173: ...F 2 25280 REMOVAL AND INSTALLATION MIE MODELS HURTH TRANSMISSIONS...
Страница 189: ...A 3 72615 ENGINE 5 0L 305 CID 5 7L 350 CID...
Страница 192: ...3A 0 ENGINES 90 823225 1 1096...
Страница 266: ...ELECTRICAL SYSTEMS STARTING SYSTEM A 72079 4...
Страница 284: ...STARTING SYSTEM 4A 17 90 823225 1 1096 THIS PAGE IS INTENTIONALLY BLANK...
Страница 308: ...B 4 72722 90 823224 692 4B IGNITION SYSTEM ELECTRICAL SYSTEMS THUNDERBOLT IV AND V IGNITION SYSTEM...
Страница 334: ...C 4 72078 ELECTRICAL SYSTEM CHARGING SYSTEM...
Страница 344: ...CHARGING SYSTEM 4C 9 90 823225 1 1096 THIS PAGE IS INTENTIONALLY BLANK...
Страница 360: ...D 4 72747 ELECTRICAL SYSTEM INSTRUMENTATION...
Страница 380: ...E 4 72761 ELECTRICAL SYSTEM ELECTRICAL KITS...
Страница 393: ...F 4 72938 ELECTRICAL SYSTEMS WIRING DIAGRAMS...
Страница 427: ...A 5 50830 90 823224 692 5A FUEL DELIVERY SYSTEMS AND FUEL PUMPS FUEL SYSTEM FUEL DELIVERY SYSTEMS AND FUEL PUMPS...
Страница 438: ...B 5 72681 FUEL SYSTEM MERCARB 2 BARREL CARBURETOR...
Страница 467: ...C 5 72085 FUEL SYSTEMS ROCHESTER 4 BARREL CARBURETOR...
Страница 497: ...D 5 70389 90 823224 692 5B WEBER 4 BARREL CARBURETOR FUEL SYSTEMS WEBER 4 BARREL CARBURETOR...
Страница 538: ...5 71692 E FUEL SYSTEMS MULTI PORT AND THROTTLE BODY FUEL INJECTION...
Страница 541: ...90 823225 1 1096 5E 0 ELECTRONIC FUEL INJECTION MULTI PORT AND THROTTLE BODY THIS PAGE IS INTENTIONALLY BLANK...
Страница 558: ...ELECTRONIC FUEL INJECTION MULTI PORT AND THROTTLE BODY 5E 17 90 823225 1 1096 THIS PAGE IS INTENTIONALLY BLANK...
Страница 591: ...90 823225 1 1096 5E 50 ELECTRONIC FUEL INJECTION MULTI PORT AND THROTTLE BODY THIS PAGE IS INTENTIONALLY BLANK...
Страница 727: ...F 5 73662 FUEL SYSTEMS BOS SAV EMISSIONS...
Страница 744: ...A 6 22381 COOLING SYSTEM SEAWATER COOLING MODELS...
Страница 773: ...B 6 72987 COOLING SYSTEM CLOSED COOLED MODELS...
Страница 823: ...A 7 72699 EXHAUST SYSTEM GENERAL...
Страница 828: ...THIS PAGE IS INTENTIONALLY BLANK TO ALLOW FOR CORRECTIONS OR ADDITIONS AT A LATER DATE 7A 4 GENERAL 90 823225 1 1096...
Страница 829: ...B 7 72695 EXHAUST SYSTEM MANIFOLDS AND ELBOWS...
Страница 835: ...C 7 70593 EXHAUST SYSTEM RISERS...
Страница 843: ...THIS PAGE IS INTENTIONALLY BLANK TO ALLOW FOR CORRECTIONS OR ADDITIONS AT A LATER DATE RISERS 7C 7 90 823225 1 1096...
Страница 844: ...D 7 72737 EXHAUST SYSTEM COLLECTORS...
Страница 855: ...THIS PAGE IS INTENTIONALLY BLANK TO ALLOW FOR CORRECTIONS OR ADDITIONS AT A LATER DATE 7D 10 COLLECTORS 90 823225 1 1096...
Страница 856: ...A 8 DRIVES VELVET DRIVE IN LINE TRANSMISSION...
Страница 869: ...B 8 DRIVES VELVET DRIVE V DRIVE AND WALTER V DRIVE TRANSMISSION...
Страница 882: ...C 8 25280 DRIVES HURTH DOWN ANGLE TRANSMISSION...
Страница 932: ...E 8 DRIVES DRIVE SHAFT PROPELLER SHAFT MODELS...
Страница 947: ...A 9 72951 POWER STEERING PUMP...