500/520 DB official thread

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I opened the box and no LED light was on. Cleaned both connections to the temp and display. Here’s a photo of the interior. So if the led light isn’t on (I did turn the circuit breaker on and off) you think it’s the board? Where can I purchase a new one?

Thanks....Steve
 
With the circuit breaker on measure Ac supply voltage across L1 and L2, sometimes called Line 1 input and Line 2 input. One of the blue triplex wires is from the circuit breaker and the other supplies power to the raw water pump. That voltage should be 220 VAC. If you have power at the board and the green LED is not lit then seems like the board has malfunctioned.
 
With the circuit breaker on measure Ac supply voltage across L1 and L2, sometimes called Line 1 input and Line 2 input. One of the blue triplex wires is from the circuit breaker and the other supplies power to the raw water pump. That voltage should be 220 VAC. If you have power at the board and the green LED is not lit then seems like the board has malfunctioned.

Just checked, there is power. So looks like the board is no good. Any chance you know where to purchase one?
 
I also tested the display by swapping it with the stateroom display and it works.
 
Hey Tom - haven't seen an update in a while - how's the lightning strike damage coming?
Funny you should ask - just today the insurance company sent me a message and concurred with all of the trouble shooting and estimates. Cummins will be replacing all of the electrical on the engines, generator, and helm systems; seems that is SOP for lightening strikes. All of the navigation, monitors, instrumentation, and wiring are to be replaced. Audio systems, LED's, dimmers, two of the HVAC systems and on and on. Haul out in a couple of weeks for transducers and full hull inspection. So, I'll take this opportunity to throw some additional money at it for some upgrades as long as everything is apart. The damage was extensive and I'm happy to report it will be fully repaired.
Some of the upgrades I think I'll go ahead and do are Garmin 8616's, AIS, Panoptix transducers, opto isolators in the data systems, and dual GPS receivers.

I must say the insurance company, their surveyor, and my broker have been superb to work with. Hope the rates remain reasonable because right now I'd really like to stay with them.....
 
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Just checked, there is power. So looks like the board is no good. Any chance you know where to purchase one?
Seems quite a few purchase parts from flightsystems.com. I default to have our local Dometic service rep provide parts or do the work.
 
update:
Realized the bridge a/c system is the same as the salon. So I pulled the logic/mother board from the bridge and swapped it into the salon. Bingo. Salon a/c now works. Will send out the salon mother board to flight systems for repair.

I’ll tell ya what, if it wasn’t for this forum I would never be able to figure anything out.

All you guys are the best....

thanks,

Steve
 
Anyone with pyrometers notice the harder you push, the lower the EGT's? If I run at 1700 RPM's, my temp on my starboard motor gets up to 1100 degrees. If I push up to 1950 rpm's, my temps go down to 950. Fuel burn goes up obviously.
 
Anyone with pyrometers notice the harder you push, the lower the EGT's? If I run at 1700 RPM's, my temp on my starboard motor gets up to 1100 degrees. If I push up to 1950 rpm's, my temps go down to 950. Fuel burn goes up obviously.
Yes. Exact same numbers as you stated. Engines do not like to run at that 1400 to 1800rpm range. More RPM means more air and cooler EGT.
 
Question - we are considering a 07 52 Sedan Bridge with Cummins...wondering if one bridge helm is a negative during a storm or bad weather. We understand the 52 Sedan Bridge has full enclosure and its conditioned...

Thanks in advance
Rich
 
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Question - we are considering a 07 52 Sedan Bridge with Cummins...wondering if have one helm is a negative during a storm or bad weather. We understand the 52 Sedan Bridge has full enclosure and its conditioned but wife wondered in bad weather do you with these boats wish for a interior driving position.

Thanks in advance for you
Rich
Rich, most people don’t go out in bad weather if they can help it. The enclosure on the bridge of a 52 sedan usually has hard plastic panels covering the forward 3/4 of the bridge and air/heat. Essentially it’s an enclosed helm if you keep the clear panels down. If there is a lot of wind the boat handles the ruff stuff with ease but you do get spray on the bridge enclosure which can make visibility a chore. Some 50/52 sedan owners have installed a wiper in the center panel to help visibility with conditions that generate spray. I believe that if you install the wiper in the center panel you may loose the ability to drive with it snapped up to the hard top. Maybe someone on the page who has the wiper can comment?

I am a fair weather boater and avoid rough conditions whenever possible so for me a lower station would be a huge waste of space and rarely used but everyone uses their boats differently. I have never seen a 50/52 with a lower station even though Sea Ray listed it as an option in their brochure.

Hope this helps
 
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I have the center wiper on my bridge enclosure. It is great. No need for a lower helm. I also have never seen a 52 with a lower helm. Being in the Midwest we have to stretch our seasons the best we can. I have been out in March with snow coming down and the heat on in the bridge. It’s beautiful riding up there in 70 degrees watching it snow. Obviously it’s not a blizzard or hazardous conditions but you get my drift. Plus 1 on the wiper option!!!!
 
We verbally have a deal on a 2007 52 Sedan Bridge with Cummins. Pretty excited To move up.

Any inspection points we should take special note on?

I would prefer not to do a boat survey and focus on the engine inspection (lender may require the Hull survey). I know some of you might disagree but I have found with boat surveys they tend to tell you all the obvious points and still miss stuff.

Other than the Hull moisture check, that seems like a necessary check.

Better money (seems to me) to have the engine surveyed and really go through it...

Love to hear thoughts

Thanks again
Rich
 
We verbally have a deal on a 2007 52 Sedan Bridge with Cummins. Pretty excited To move up.

Any inspection points we should take special note on?

I would prefer not to do a boat survey and focus on the engine inspection (lender may require the Hull survey). I know some of you might disagree but I have found with boat surveys they tend to tell you all the obvious points and still miss stuff.

Other than the Hull moisture check, that seems like a necessary check.

Better money (seems to me) to have the engine surveyed and really go through it...

Love to hear thoughts

Thanks again
Rich
Rich - I would discourage not doing the hull survey. This survey looks at all of the running gear, electrical systems, navigational systems, and many more.. It is every bit as important as the engine survey; your insurance company will require it. So moisture isn't a prevalent issue in these boats; the areas to focus are around hull and deck penetrations and cut-outs (like for ports and hatches)
The engine's are rock solid as long as the previous owner(s) did the required maintenance. Aftercooler and heat exchanger service intervals are important. The only real issue with these engines are the "dry exhaust" system. They are hot and tend to start to leaking exhaust around the gasketed mating surfaces. Any qualified surveyor with Cummins QSM11 experience will know what to look for. Make sure your surveyor has good background with the QSM11 engines.
 
I concur with the above. It is a large investment and you want to have as much information and knowledge about the boat before you purchase it as you can get. There are many people that had surveys on boats that they later walked away from the deal on because it uncovered and issue that they were not interested in taking on as the new owner.
 
I have the center wiper on my bridge enclosure. It is great. No need for a lower helm. I also have never seen a 52 with a lower helm. Being in the Midwest we have to stretch our seasons the best we can. I have been out in March with snow coming down and the heat on in the bridge. It’s beautiful riding up there in 70 degrees watching it snow. Obviously it’s not a blizzard or hazardous conditions but you get my drift. Plus 1 on the wiper option!!!!
Can you still open the center panel with the wiper installed ? I would love to have to have center the wiper for days when there is spray. Do you have any pics you can share?
 
We are scheduling engine and boat surveys this week. I appreciate it if you folks could share any trouble areas I should focus on... I would appreciate it.

2007 Sedan Bridge Cummins QSM11
 

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