500/520 DB official thread

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Mac Magic said:
Anybody replace the bridge vents?
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I have a 1996 500 Sundancer. The windshield washers will not stop spaying water on the windshields. My research of the forums found that an electric valve control the water to the windshields. Does anyone know where the valve is located? I've looked all over the boat.
 
glennray said:
I have a 1996 500 Sundancer. The windshield washers will not stop spaying water on the windshields. My research of the forums found that an electric valve control the water to the windshields. Does anyone know where the valve is located? I've looked all over the boat.
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Glen - On my 410, I was able to locate the leaky valve by listening to the solenoid "click" when I would actuate it... I know this will be of no help to you, but on the 410, mine was behind the generator panel on the port side of the cockpit...
That darn valve comes from Switzerland and was about $300 as I recall...
 
glennray said:
I have a 1996 500 Sundancer. The windshield washers will not stop spaying water on the windshields. My research of the forums found that an electric valve control the water to the windshields. Does anyone know where the valve is located? I've looked all over the boat.
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I suspect the solenoid valve is located somewhere near the wiper motors; which, in my 400DA were above the headliner in the cabin.
 
Does anyone have the wiring diagram for the 520db in PDF that they can share? My aft 120v Circuit that has a gfci keeps tripping and I am trying to figure out why. The gfci is located in the locker under the bridge stairs and the only 3 outlets that it runs that I can tell is that one Under the stairs that the gfci breaker is at, the one on the lazzarett on the starboard side right before you go into the engine room and the one behind the ice maker that the ice maker is plugged into. Mine will stay on fine and then other times the gfci won’t reset. I changed out the gfci outlet last week and it worked fine all weekend until today when it tripped and won’t reset. I made sure I didn’t have anything plugged into those 3 outlets except the ice maker and I had that turned off. I feel like I am missing an outlet that something is plugged into.
 
Jeremygavin said:
Does anyone have the wiring diagram for the 520db in PDF that they can share? My aft 120v Circuit that has a gfci keeps tripping and I am trying to figure out why. The gfci is located in the locker under the bridge stairs and the only 3 outlets that it runs that I can tell is that one Under the stairs that the gfci breaker is at, the one on the lazzarett on the starboard side right before you go into the engine room and the one behind the ice maker that the ice maker is plugged into. Mine will stay on fine and then other times the gfci won’t reset. I changed out the gfci outlet last week and it worked fine all weekend until today when it tripped and won’t reset. I made sure I didn’t have anything plugged into those 3 outlets except the ice maker and I had that turned off. I feel like I am missing an outlet that something is plugged into.
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I had the same issue on mine and it turned out there was an outlet on the bridge to the right of the refrigerator that had a short. It is wired on same circuit on my boat anyway.
 
Charlesoceanone said:
I had the same issue on mine and it turned out there was an outlet on the bridge to the right of the refrigerator that had a short. It is wired on same circuit on my boat anyway.
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I have the same outlet on my boat on the bridge. I’ll definitely check it out. We took some spray on the ride home last night So I washed the Bridge down That could be the problem if The outlet got wet. Thanks for the heads up.
 
i have the owners manual with the wiring plans if you need it in .pdf
it's 28 megs and i can't upload it, if you need it via email let me know.

Steve
 
Mac Magic said:
i have the owners manual with the wiring plans if you need it in .pdf
it's 28 megs and i can't upload it, if you need it via email let me know.

Steve
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Thank you. PM sent
 
This module controls the overhead lights on the dimmer on my bridge. It has stopped working. Anyone know a brand or replacement? M
 

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So I want to share my shaft failure that has me wondering how this could happen. I never hit anything and I’ve owned the boat for 10 years. I did have the cutless bearing replaced and swapped out my props back in April but I’ve put about 30 hours or more on the boat since then so I wouldn’t think that has anything to do with it but who knows. Metal fatigue?

Would love to hear any thoughts on this......


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WOW..... You won the lottery on that one. God bless you made it home with the prop on.
 
cod said:
So I want to share my shaft failure on our return from the Bahamas. I’ll give you a little run down of the trip first.

We arrived in the Bahamas on July 1 and for the first two and a half weeks the weather was perfect. We worked our way from the Berries down thru Nassau and the the Exumas. We went as far as Staniel Cay Yacht Club. Weather pattern changed at the time we were at Staniel Cay and we started to get several days of steady wind. Our plan was to head to Harbor Island but we would have been fighting the seas heading east and decided to change our itinerary and just work our way back home. At the time we were in Highbourne and winds were now steady and no end in sight. So we ran to Palm Cay Marina on Nassau which wasn’t a bad cruise with a following sea. We ended staying there for 5 days waiting for condition to improve. Not a bad place to be stuck so no complaints here. Our next run would be over deep water so I knew conditions could be bad so we waited it out for an “acceptable” day.
This is where the failure happened. Our next run would be from Nassau to Bimini. We ran for 2 hours over deep water in a following sea with swells combined with 3-4’s. Boat was handeling it well and it really wasn’t bad. I was running at 1900 rpm. Once we got to the Bahama Bank off the north end of Andros conditions improved. I decided to bring engine up around 1970-2000 rpm to make a little time since we still had another 3 hours. I would say not more than 5 minutes later I start to feel a small vibration. I figured I must have picked up a line or something so I slowed down and backed down to see if that would maybe help. It didn’t so I kept her at 1900 rpm. Heading to North Bimini, there is an “S” turn between Gun Cay and North Cat Cay. After I went thru the S turn, the vibration seemed to had gotten worse.
Once we got to Bimini, I waited until the next morning to dive under the boat expecting to see something wrapped around my Starboard prop. Nothing....... Spun the prop and everything seem normal. I assumed whatever it was fell off backing into the slip.
Well when we went to leave Bimini the vibration was still there and certainly now prominent enough that we had to slow cruise across the Gulf Stream at 8 -9 kts. Not fun.....I actually ran up the port engine which seemed to reduce the vibration and taking load off the starboard.

When we arrived at Key Biscayne, I dove under the boat again and now grabbed the prop and check for any play. Sure enough the prop felt like it was rocking as if the prop was loose. As I watched it closely, I could see the end of the shaft moving with the prop. I knew that wasn’t good and can only mean one thing. Sure enough when the prop was pulled the next day, the shaft was cracked under the prop. I’m super lucky I didn’t loose the prop or have a situation of it flapping around like a wagging tail before it broke off. It appears the cracked started spiraling down the shaft which was probably a good thing.

It has me wondering how this could happen. I never hit anything and I’ve owned the boat for 10 years. I did have the cutless bearing replaced and swapped out my props back in April but I’ve put about 30 hours or more on the boat since then so I wouldn’t think that has anything to do with it but who knows. Metal fatigue?

Would love to hear any thoughts on this......


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That seems like a very unlikely failure spot. The process of pulling the prop and then torquing the new prop on must had started this failure but I would assume there was an issue that was already there. It is crazy too because these are not small shafts. That a lot of metal to crack. You Very lucky to have made it back with everything still attached. How long will you have to wait for a new shaft?
 
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