420/44 DB Owners Club

I need to replace mine as well but the need doesn’t justify the level of effort. Waiting for a retractable option as I barely use the screen door. However curious on the process. I can just see myself replacing it, start using it then someone wrecks it by the end of the season (by someone I mean me walking through it...lol)

If you notice these newer boats with the fancy doors have no screens.
 
There is a black spacer on the left of the track you need to remove, then slide the door to the left and the door will lift out. If the spacer is not on the bottom track it is in the upper channel. You may need to lower your rollers to clear.
There are screws holding the stationary door in place and it has been a while since I did this and don't remember exactly where they are. Once removed slide the stationary door enough to clear the vertical channel it rides in and lift out.
Not a complicated procedure but it helps to have help with the heavy doors.
 
I too have a new to me 07 44 db.I read every post before making my purchase. Lots of good info and members seem very helpful. I took possession late September ran a few times and have been doing major maintenance ever since I came out of the water. Thanks for all the info cant wait until spring. I tell my wife all those boxes from seaboard marine are her Christmas presents.
 
Mark.60 said:
I too have a new to me 07 44 db.I read every post before making my purchase. Lots of good info and members seem very helpful. I took possession late September ran a few times and have been doing major maintenance ever since I came out of the water. Thanks for all the info cant wait until spring. I tell my wife all those boxes from seaboard marine are her Christmas presents.
Click to expand...
Welcome to the thread! The wealth of information I found here was part of my decision to jump into a 2004 420DB this June (actually our first boat, ever). 50 hours later, the family is hooked and I'm getting my own to-do list together for the winter. When you get a break from ordering parts, let us know what work you have planned!
 
BJD said:
Welcome to the thread! The wealth of information I found here was part of my decision to jump into a 2004 420DB this June (actually our first boat, ever). 50 hours later, the family is hooked and I'm getting my own to-do list together for the winter. When you get a break from ordering parts, let us know what work you have planned!
Click to expand...
 
The boat has 800 hrs and is clean and good shape.survey found trace amounts of salt in transmission oil so.
Replaced both fuel/ transmission coolers,both after coolers serviced heat exchangers, replaced raw water intake hoses, impellers , belts,filters ,oil, zinc, removed turbos for cleaning and inspection i think I’m good in the engine room for now.
I got some great tips that were of great help.
 
Irie308 said:
Slightly off topic but but may be relevant. I haven't seen this discussed on here so i'll ask a fellow 04 model owner. Not sure if the new models were subject to this. Recently found out why my new to me boat came with a new gen that had only 20 hours on it. Apparently some 42/44 DB left the factory without a check valve on the exhaust line of the gen. This causes water to back up into the cylinders of the gen when underway and gen is not running. Is this news to anyone? ...
Click to expand...

Dean,

I'm having a hard time buying the story, without any supporting details. It's just a really long traveling for the sea water to do via exhaust route, upward to the muffler, from the muffler upward to the engine. That would require lots of constant pressure (not an occasional beam wave).

If there's a check valve on later models, where is it? I changed my muffler and exhaust hoses and never saw one.
 
Alex F said:
Dean,

I'm having a hard time buying the story, without any supporting details. It's just a really long traveling for the sea water to do via exhaust route, upward to the muffler, from the muffler upward to the engine. That would require lots of constant pressure (not an occasional beam wave).

If there's a check valve on later models, where is it? I changed my muffler and exhaust hoses and never saw one.
Click to expand...

Alex, now you have peaked my interest that you don't have one. The person who I chatted with ran the boat to FL after owning it for a while and that's when he had the water ingestion to the gen. I know you've done similar travels multiple times so curious what's different in your setup. I know when I'm fully loaded my exhaust port sits pretty close to the waterline. Based on the fact that the water shoots up through the drain ports from the cockpit I thought it was quite plausible that water cold build up in the muffler and make its way back to the gen. Curious if they changed the run of the exhaust line or raised the outlet at the water line. I was definitely puzzled as to why the PO had to replace the gen but finding out that I do have a check valve and hearing this story made sense. Mind you my gen is a 2008 model and when we purchased from the original owner in 2018 it only had 20 hrs on it, so clearly they didn't really run the gen.
 
My buddy Harold with a 2004 420SD wanted to sand a scratch out of the galley floor hatch door. He thought the wood floor was real wood but it seems it is a laminate? He sanded out the scratch but tried to touch up the area with some polyurethane finish but its not adhering to the surface. Has anyone any ideas for a product that might work to bring back the finish?
Carpe Diem
 
Rusty, I would have bet you that the floor was solid (especially from 2004) - I'm going to take a closer look at mine come spring time.

I believe a laminate floor would have been finished with polyurethane (often with a higher zinc content for hardness). Having done some woodworking along the way I would lightly sand with 220grit, clean with rubbing alcohol before adding a coat of poly.

I'm in the middle of a project now and have a couple pieces of solid wood pre-finished flooring - I'll give it a try this afternoon and let you know how it goes tomorrow morning.
 
:mad::mad::mad::mad::mad::mad:
Tomco said:
Rusty, I would have bet you that the floor was solid (especially from 2004) - I'm going to take a closer look at mine come spring time.



I believe a laminate floor would have been finished with polyurethane (often with a higher zinc content for hardness). Having done some woodworking along the way I would lightly sand with 220grit, clean with rubbing alcohol before adding a coat of poly.

I'm in the middle of a project now and have a couple pieces of solid wood pre-finished flooring - I'll give it a try this afternoon and let you know how it goes tomorrow morning.
Click to expand...
FAAEB593-7C59-495B-BBC9-28750B07501F.jpeg

Harold found something that worked great. He sanded and refinished yhe galley and the dinette area yesterday and says it looks good as new except the spot that he sanded too deep :mad:
 
A good sanding and cleaning is key. I did try both oil (Fabulon Professional) and water (Minwax) poly on a pre-finished piece of hardwood - both turned out good and seem to adhere well. The oil based one takes longer to harden up and is still a bit soft.
upload_2020-12-17_19-47-58.png
 
Carpediem44DB said:
I cut my aft overboard line above the water heater and installed a quick disconnect coupler that I detach and run a short length of hose from to my pump bucket. For the forward AC unit I stretch a length of hose from the out put to my bucket and just let the entire system circulate. I think I will actually flush my system this weekend and will post pics of my set up. It’s been a while so it’s time.
Carpe Diem
Click to expand...
 
Alex F said:
Thanks Harold. We're doing fine and I hope you and your crew are all good, as well.

It was interesting to note how SR smashed the blower in this tight spot to the point it was slightly deformed. I was surprised it wasn't making any extra noise earlier. To fit it without jamming it in, I mount it a bit higher, but to the side, making it clear the medicine cabinet sliding back in the spot.

You think making a quick access under the sink would be only logical place for the blower, but I guess the "engineers" know better than a hands-on boat owner...:(
Click to expand...

Hello Alex,

Could you post what make/model you replaced your blower with? Perhaps where you got it? I can barely see part of the model number in the one picture but can find something only that I'm confident will fit.

Thank you
 
Irie308 said:
Alex, now you have peaked my interest that you don't have one. The person who I chatted with ran the boat to FL after owning it for a while and that's when he had the water ingestion to the gen. I know you've done similar travels multiple times so curious what's different in your setup. I know when I'm fully loaded my exhaust port sits pretty close to the waterline. Based on the fact that the water shoots up through the drain ports from the cockpit I thought it was quite plausible that water cold build up in the muffler and make its way back to the gen. Curious if they changed the run of the exhaust line or raised the outlet at the water line. I was definitely puzzled as to why the PO had to replace the gen but finding out that I do have a check valve and hearing this story made sense. Mind you my gen is a 2008 model and when we purchased from the original owner in 2018 it only had 20 hrs on it, so clearly they didn't really run the gen.
Click to expand...

Dean,
When fully loaded, my genny exhaust is just about at the waterline. When underway (regardless whether on plane or trolling at 9kts), the stern sits lower, so the genny exhaust is pretty much submersed underwater.

Are you saying that you have this type of inline check-valve installed?

Generator_Exhaust_Checkvalve.jpg


I definitely don't have it and never heard/seen it being used on any SRs to solve a problem you describe. If this would be a common issue, even a specific model related, we'd hear much more about it over the years.

The only difference in my setup is that I upgraded my muffler from stock 6" to a 10". The reason was to reduce exhaust noise.

If the story you got is related to the water getting in the cylinders, it most likely was caused by raw water intake. A simple scenario is attempting to fire up generator while underway (especially on plane). If it doesn't fire up within one or two attempts, now you're risking water injection being forced in. Years ago, a friend "killed" his generator during FW flushing by constantly supplying water while genny wasn't starting. With city water being constantly turned on, cranking and stopping several times forced the water into the cylinders causing a hydrolock.

Having said that, just b/c they installed an exhaust check-valve on your boat, it doesn't necessarily mean that generator failure was caused by exhaust letting water back into the engine. At least that's my preliminary conclusion until I hear more details supporting the theory of the story you were told.

copb8tx said:
Hello Alex,

Could you post what make/model you replaced your blower with? Perhaps where you got it? I can barely see part of the model number in the one picture but can find something only that I'm confident will fit.
Thank you
Click to expand...

For some reason I can't find a link to where I ordered it, but the stock model is 5415, Mayfair Marine remote mount blower 112 C.F.M. 12VDC 5.5amp
 
Last edited:
Alex,

Many years ago we took a trip to Nantucket. I had my genny running. A friend of mine with a 40’ dancer was not running his generator while cruising. We were going from Montauk to Nantucket and there were rolling swells. The best we could surmise, water must have backed up the exhaust and into the cylinders with pressure from the swells causing the genny exhaust to be submerged. Luckily we were able to pull the plugs and blow it out and get it started. Ever since then, I always run my genny when cruising unless I know I will only be going slow.
 
At what rpm and speed does the 44
Like long distance cruising with the QSC 500? What’s the fuel burn?
Thanks
 
RBB said:
At what rpm and speed does the 44
Like long distance cruising with the QSC 500? What’s the fuel burn?
Thanks
Click to expand...
I mostly cruised at hull speed as we were never in a hurry to get anywhere but it seems that when we were pressed for time, the 44 liked 2200 Rpm which gave me about 20 Kts at about 36 gallons an hour or about .4 MPG.
Carpe Diem
 
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Irie308 said:
Alex, now you have peaked my interest that you don't have one. The person who I chatted with ran the boat to FL after owning it for a while and that's when he had the water ingestion to the gen. I know you've done similar travels multiple times so curious what's different in your setup. I know when I'm fully loaded my exhaust port sits pretty close to the waterline. Based on the fact that the water shoots up through the drain ports from the cockpit I thought it was quite plausible that water cold build up in the muffler and make its way back to the gen. Curious if they changed the run of the exhaust line or raised the outlet at the water line. I was definitely puzzled as to why the PO had to replace the gen but finding out that I do have a check valve and hearing this story made sense. Mind you my gen is a 2008 model and when we purchased from the original owner in 2018 it only had 20 hrs on it, so clearly they didn't really run the gen.
Click to expand...
There is a couple of configuration things to verify to make sure:
Does the exhaust hose loop up to the deck underside and tie to that deck like this first pic?
Does the raw water supply to the exhaust loop up into the gunnel and is the anti-siphon vacuum breaker functional second pic?
IMG_5124.jpg

IMG_3507 compressed.JPG
 
Last edited:
7BE0240C-E38C-4E32-8B63-E16C10D82EFE.jpeg
Alex F said:
Dean,
When fully loaded, my genny exhaust is just about at the waterline. When underway (regardless whether on plane or trolling at 9kts), the stern sits lower, so the genny exhaust is pretty much submersed underwater.

Are you saying that you have this type of inline check-valve installed?

View attachment 96831

I definitely don't have it and never heard/seen it being used on any SRs to solve a problem you describe. If this would be a common issue, even a specific model related, we'd hear much more about it over the years.

The only difference in my setup is that I upgraded my muffler from stock 6" to a 10". The reason was to reduce exhaust noise.

If the story you got is related to the water getting in the cylinders, it most likely was caused by raw water intake. A simple scenario is attempting to fire up generator while underway (especially on plane). If it doesn't fire up within one or two attempts, now you're risking water injection being forced in. Years ago, a friend "killed" his generator during FW flushing by constantly supplying water while genny wasn't starting. With city water being constantly turned on, cranking and stopping several times forced the water into the cylinders causing a hydrolock.

Having said that, just b/c they installed an exhaust check-valve on your boat, it doesn't necessarily mean that generator failure was caused by exhaust letting water back into the engine. At least that's my preliminary conclusion until I hear more details supporting the theory of the story you were told.



For some reason I can't find a link to where I ordered it, but the stock model is 5415, Mayfair Marine remote mount blower 112 C.F.M. 12VDC 5.5amp
Click to expand...
Yes, Attached is a photo of my check valve. Best I could get in tight quarters. Thought it was a muffler at first until closer inspection. I do have a rise in the exhaust tube coming off the muffler but can still the water making it above the rise Over a period of time in rough seas. Interesting still that some have a check valve and some don’t.
 
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