2040-D O&M Manual Ver 3.0 CaviDyne
TM
5077 Fruitville Rd.; Suite 109
– 157 Sarasota, FL 34234 U.S.A.
Phone 352.275 5319
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8.0 TROUBLESHOOTING
1. ENGINE DOES NOT TURN OVER
- Verify that the Emergency Engine Shut-Down knob is released
- Verify that air is flowing to the starter
2. ENGINE TURNS OVER BUT DOES NOT START
- Check fuel level
- Check fuel filter
- Check fuel line for air lock
- Verify that fuel pump solenoid is not stuck
3. ENGINE THROTTLES UP, BUT STALLS AFTER FEW SECONDS
- Verify that drive belts are tensioned (follow procedures in Section 6.5)
- Check that pressure regulator / unloader switches to by-pass mode
- Check mechanical stop on the throttle cable if at end position
4. ENGINE SPEEDS UP, BUT WATER DOES NOT GO OUT THE GUN
- Verify inlet water supply is functioning
- Ensure that the power unit is not located too far above the water level,
exceeding the capacity of the feed pump
- Check that feed pump and inlet water strainers are clear
- Check for leaks in the water lines
- Check for an air-lock in the water inlet lines
- Verify that the feed pump is delivering water
Pump mechanical failure
Drive belt failure
- Check that pressure pump inlet and discharge valves are not stuck open
(common problem if not flushed after use with sea water)
- Check for water going out of the bypass
– pressure regulator failure
5. WATER IN CRANK CASE
- Check the pump seals for damage (feeding water at greater than 70-psi
(4.8 bar) can force water past the seals and damage the seals and starving
the pressure pump of water can overheat and damage the seals)
- Check the plungers for cracks
- Check the plunger rod O-ring for damage
