MckyD
New Member
- Nov 4, 2018
- 9
- Boat Info
- Sea Ray 500 1999
- Engines
- 3176 Cats 660hp
Westerbeke Generator 12.5
I have a Westerbeke 12.5 Generator in my Sea Ray 500 1999. I keeps shutting down. I have tried everything from bypassing pressure switches, testing connections, checking oil pressure, water temp and output volts from alternator. When you start the gen set it runs perfectly for anything from 5 min to 20min. Then shuts down. Will restart immediately and run if you hold the preheat switch on. As soon as you let go of the preheat switch it stops. Fuel is ok no problem.
I have had the alternator off and checked to make sure it is running ok. The generator is operated from the main panel in the salon. There are 2 toggle switches and a green light as installed by Sea Ray. When you come to start it for the first time, move the toggle to the run or mid position, the green light come on and you can start and run as normal. Once it starts the green light stays on while running. When it shuts its self down and do to the panel, the green light is off. Even when the run switch is in the run position. If you start and hold the preheat switch on the genset runs and the green light stays on, As soon as you let go of the preheat switch it stops and the green light is out. I have spent days tracing back through the wire diagrams trying to work out the issue. I had a brief chat to a guy this morning who mentioned that some Sea Rays have the fire suspension system hooked into the genset and if there is a fault in the fire system it will shut the genset down. However you would think if that was the case it would not run at all. As I mentioned I really need help with this one.
I have had the alternator off and checked to make sure it is running ok. The generator is operated from the main panel in the salon. There are 2 toggle switches and a green light as installed by Sea Ray. When you come to start it for the first time, move the toggle to the run or mid position, the green light come on and you can start and run as normal. Once it starts the green light stays on while running. When it shuts its self down and do to the panel, the green light is off. Even when the run switch is in the run position. If you start and hold the preheat switch on the genset runs and the green light stays on, As soon as you let go of the preheat switch it stops and the green light is out. I have spent days tracing back through the wire diagrams trying to work out the issue. I had a brief chat to a guy this morning who mentioned that some Sea Rays have the fire suspension system hooked into the genset and if there is a fault in the fire system it will shut the genset down. However you would think if that was the case it would not run at all. As I mentioned I really need help with this one.