1996 Sundancer 330 DA w/ Westerbeke 4.5 BCG Wiring Diagram

[Voodoochild330]

Good morning all,

I have a 1996 Sundancer 330 DA with the Westerbeke 4.5 BCG setup. Long story short, I managed to bend a valve on it and had to do a rebuild on it last winter.

During removal... my shop who did the removal nor I decided to take note of the wiring in which runs from the remote panel in the cabin to the generator in the bilge on the block.

Westerbeke provides the wiring diagram for the generator, not the specific boat. I have contacted SeaRay and apparently they do not posses this anymore and from research this is an issue. I was essentially told to find an exact duplicate of my boat and copy the wiring diagram. I did this on the facebook groups and unfortunately that did not work.

All last summer I ran the jumper to override the remote panel, I would have to open the bilge, fire up the generator and then close the bilge. Only in order to shut it off... rinse and repeat. Super not fun.

I have attempted using a multi-meter with electrician friends who we ended up getting close but are not there yet. We can make the generator, start and run, but only while holding down the *START* momentary switch. The second you let off the *START* she will shut down.

Does anyone happen to have a diagram for this? Or can make me one? I will gladly compensate you for your time. It HAS to be a 96 330DA and it HAS to be a 4.5 BCG apparently.

I can upload photos of the existing wiring if need.

 

[PlayDate]

Sea Ray did put in electronics between the remote panel and the generator but I believe that was later than 1996. I would start with this wiring diagram and check the wire colors you have on the panel and the generator end. If the colors match, then the problem becomes simple. This page 126 of the 4.5BCG Westerbeke Technical Manual.

This is the optional remote panel schematic for your model.

 

[Voodoochild330]

Sea Ray did put in electronics between the remote panel and the generator but I believe that was later than 1996. I would start with this wiring diagram and check the wire colors you have on the panel and the generator end. If the colors match, then the problem becomes simple. This page 126 of the 4.5BCG Westerbeke Technical Manual.

This is the optional remote panel schematic for your model.

View attachment 79327

I have that diagram and the one for a 450DA with the monoplex in it. These are the wires that came on the terminal strip. These are the wires I have. It ran before pulling it (and blowing it up). If anyone has my identical boat, I just a few photos of what their colors to terminal strip sequence looks like to try it this weekend.

 

[Sublimetime]

I n your original post you state that you have gotten it wired up pretty close- but it shuts down when switch is released.

maybe there is a bad sensor (oil-overheat-etc. ) that is bad and causing the shutdown as it should. Try bypassing each as a test.

 

[Voodoochild330]

I n your original post you state that you have gotten it wired up pretty close- but it shuts down when switch is released.

maybe there is a bad sensor (oil-overheat-etc. ) that is bad and causing the shutdown as it should. Try bypassing each as a test.

Runs fine on a bench prior to install and runs fine with the jumper wire which is the way I have to start it and stop it at the moment. Its a complete pain in the ass frankly.

 

[Sublimetime]

while you have it running with the jumper wire on try tripping one of the sensors (overheat on manifold/or oil pressure) and see if it shuts down like it should.

 

[Voodoochild330]

while you have it running with the jumper wire on try tripping one of the sensors (overheat on manifold/or oil pressure) and see if it shuts down like it should.

I've run it all day and no issues, so if it was to overheat or low oil pressure she would have canned herself.

 

[Sublimetime]

I've run it all day and no issues, so if it was to overheat or low oil pressure she would have canned herself.

yes but if the jumper is causing a sensor bypass situation then even if oil press and temp are ok, than sure it keeps running no harm, but lets say that the temp itself is indeed within specs, but the sensor is giving a "false "reading, then it would cause a shutdown, but because you may have the "jumper" on it cant shut down.

With that being said-If you have it running with the jumper lead on and trigger a sensor it should shut down. If it doesn't then your jumper is bypassing the auto-shutdown circuit.

 

[Voodoochild330]

yes but if the jumper is causing a sensor bypass situation then even if oil press and temp are ok, than sure it keeps running no harm, but lets say that the temp itself is indeed within specs, but the sensor is giving a "false "reading, then it would cause a shutdown, but because you may have the "jumper" on it cant shut down.

With that being said-If you have it running with the jumper lead on and trigger a sensor it should shut down. If it doesn't then your jumper is bypassing the auto-shutdown circuit.

I see where you are going with that. could be a bad sensor after wiring in it.

 

[Sublimetime]

Exactly- bad sensor but you might be bypassing it anyway.