56
Possible Cause
Remedy
Trouble
Engine runs
rough, misses
and/or backfires
•
Faulty fuel pump
•
Idle speed too low (if engine is
rough at idle)
•
Faulty ignition system component
•
Clogged fuel filters
•
Check sight tube. Have your dealer replace
pump, if fuel is present.
•
Check idle speed and adjust, if necessary.
•
Service ignition system
•
Replace filters.
Poor performance
•
Contaminated fuel
•
Kinked or clogged fuel line or fuel
tank vent line
•
Flame arrestor plugged with
foreign material.
•
Throttle not fully open
•
Damaged or improper propeller
•
Excessive bilge water
•
Boat overloaded or load improp-
erly distributed
•
Boat bottom fouled or damaged
•
Flame arrestor dirty
•
Inspect fuel for water or other contaminants.
If contaminated, drain tank and flush. Fill with
fresh fuel.
•
Replace line if kinked. Blow out line with
compressed air to remove obstruction.
•
Clean flame arrestor.
•
Inspect cable and linkages for binding, ob-
struction or loose fasteners.
•
Replace.
•
Drain and check for cause of entry.
•
Reduce load or redistribute load more evenly.
•
Clean or repair as necessary.
•
Clean flame arrestor.
Excessive engine
temperature
•
Engine overheating
•
Ignition or EFI System fault
•
See “Excessive engine temperature”.
•
Refer to “Engine runs rough, misses and/or
backfires”.
•
Water inlet valve closed (if so
equipped)
•
Alternator drive belt loose, broken
or in poor condition
•
Seawater pickup pump drive belt
loose, broken or in poor condition.
•
Water pickup obstructed
•
Kinked, collapsed or broken hose
•
Faulty thermostat
•
Open valve COMPLETELY.
•
Replace and/or adjust belt.
•
Replace and/or adjust belt.
•
Remove obstruction.
•
Straighten or replace hose.
•
Replace.
•
Transmission fluid cooler and/or
engine oil cooler plugged with
foreign material
•
Disconnect hoses from coolers and flush out with
a water hose in direction opposite normal water
flow.
(continued next page)
•
EFI System Fault
•
Have EFI System checked by an Authorized
MerCruiser Dealer.
Содержание 350 Magnum MPI
Страница 15: ...THIS PAGE IS INTENTIONALLY BLANK 13 ...
Страница 16: ...14 CC93 Operation 70514 70515 70516 70523 70517 70522 70518 70521 70519 1 2 3 4 5 6 7 8 9 ...
Страница 18: ...16 CC180 70516 1 2 3 72957 70518 ...
Страница 20: ...18 CC254 70525 1 4 3A 3B 71583 3C 71585 2 72852 ...
Страница 22: ...20 CC166 1 3 2 4 5 73866 ...
Страница 32: ...30 CC233 Maintenance 71459 1 2 2 4 5 3 6 74192 5 ...
Страница 36: ...34 CC224 3 70543 2 4 5 71419 73749 74176 74192 ...
Страница 38: ...36 CC225 3 2 1 73684 71344 ON OFF 74176 74195 ...
Страница 40: ...38 CC226 3 2 4 70659 71457 1 74174 1 74183 ...
Страница 42: ...40 CC232 1 71170 71118 3 74192 ...
Страница 44: ...42 CC231 Maintenance continued 1 70562 2 71349 74192 ...
Страница 46: ...44 CC374 2A 2 70573 1 73694 1B 1A 3 74637 ...
Страница 48: ...46 CC69 1 71449 70140 70057 2 3 4 5 6 2 3 4 6 5 TYPICAL FRONT MOUNT TYPICAL REAR MOUNT ...
Страница 50: ...THIS PAGE IS INTENTIONALLY BLANK 48 ...
Страница 52: ...50 CC228 3B 74179 ...
Страница 54: ...52 CC229 71170 7 71758 8 2A 3 6 4 71334 2B 74165 74140 ...
Страница 60: ...58 CC163 Water Flow Diagram 73854 ...