General Information
26 VPA 7748089 English 09-2007
Crankshaft Balancer or Flywheel
1. Loose bolt(s)
Alternator
1. Loose pulley, worn bearings
2. Loose mounting bolts
Sterndrive
1. Failed U-joints or gimbal bearing
2. Damaged internal drive components
3. Worn, bent or broken propeller hub or blades
4. Loose, worn or damaged engine coupler
Engine Overheats
Check:
1. Actual engine temperature by verifying with an accurate ther-
mometer at the thermostat housing
2. Gauge operation and wiring circuit
3. Sending unit operation and wiring circuit
4. Supply pump, circulating pump and belt(s)
5. Water intake screens for blockage
6. Thermostat
7. Water supply hoses
8. Engine timing
9. Water leaks on pressure side of supply pump
10. Air leaks on suction side of supply pump including the transom
shield and sterndrive.
11. Engine compression
Engine Dies Out
Loss Of, Or Out Of, Fuel
Check:
1. Fuel gauge operation and wiring
2. Fuel level in tank
3. Water or debris in fuel
4. Fuel pickup tube and screen blockage
5. Fuel tank vent blockage
6. Plugged external canister or carburetor fuel filters
7. Air leak on suction side of fuel system
8. Fuel leak on pressure side of fuel system
9. Inoperative, restricted or incorrectly sized anti-siphon valve
10. Boat fuel lines too small in diameter
11. Fuel pump pressure and suction
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