NWboater2
Senior Member
- Joined
- Apr 28, 2021
- Messages
- 135
- Vessel Name
- Ripple
- Vessel Make
- 2005 Grand Banks 42 EU
Hey all. When I bought this new to me 2005 single engine GB I knew that the Murphy gauge showed only about 12.8 ish volts when running, while the link 20 monitor showed more like 14. Thought alt or reg (older balmar)
Matt at Petrel marine and I spent a nice morning going thru the boat and he confirmed that the alt and reg are doing their job. Instead there is an over my head glitch of some sort between the engine, it’s buried-in-a-not- very-accessible-place brain (ecm) and the Murphy gauge at the helm. He would like a schematic of that wiring harness.
There has been some post factory work done under the helm. DC panel engine start breaker, as a good example, does not affect my ability to start the engine. Fires up either way. Not sure what adverse effects if any this voltage drop might have. Seems happy otherwise.
Any ideas? I got an email addy for a Grand Banks guy in Malaysia somewhere here, no response. Will reach out to cascade Seattle and or Deere but am wondering if any of you might have access to one? Recently joined boat diesel. I thought THiS forum format was a lil clunky. Wow.
I will try to try there too but looking for ideas.
Thanks!
Matt at Petrel marine and I spent a nice morning going thru the boat and he confirmed that the alt and reg are doing their job. Instead there is an over my head glitch of some sort between the engine, it’s buried-in-a-not- very-accessible-place brain (ecm) and the Murphy gauge at the helm. He would like a schematic of that wiring harness.
There has been some post factory work done under the helm. DC panel engine start breaker, as a good example, does not affect my ability to start the engine. Fires up either way. Not sure what adverse effects if any this voltage drop might have. Seems happy otherwise.
Any ideas? I got an email addy for a Grand Banks guy in Malaysia somewhere here, no response. Will reach out to cascade Seattle and or Deere but am wondering if any of you might have access to one? Recently joined boat diesel. I thought THiS forum format was a lil clunky. Wow.
I will try to try there too but looking for ideas.
Thanks!
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