460 DA Owners Thread

Russ Calasant said:
There are two fresh water pumps in the engine room. On the salon panel they are labeled pump one and two. Does anyone know what the pumps feed? My pump two runs constant and when I shut it off I can't find any water that dose not work. Hmmmmm
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I know, I know, I only have a 280 but I like to look at the manuals and stuff. It looks like your system just has two pumps supplying everything. It doesn't appear that one pump runs part of the boat and the other, the other. Page 66 & 68... http://www.searay.com/boat_graphics/electronic_brochure/Company1729/1C1_24_74DEIPR6BF0.pdf It appears your down to std trouble shooting on #2
 
Woody said:
I know, I know, I only have a 280 but I like to look at the manuals and stuff. It looks like your system just has two pumps supplying everything. It doesn't appear that one pump runs part of the boat and the other, the other. Page 66 & 68... http://www.searay.com/boat_graphics/electronic_brochure/Company1729/1C1_24_74DEIPR6BF0.pdf It appears your down to std trouble shooting on #2
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Russ, based on the diagram that Woody provided, it looks like your pumps are installed in parallel. Both pumps feed everything. Just guessing, but It would makes sense that one pump would come on and then if the first pump could not keep up with the demand(maintain a specific pressure in the system), the second pump would then kick on. If this is the case each pump would have a way to adjust the on and off pressures. It might be possible that the pump that won't shut off has a pressure sensor that is bad or its "off" pressure is set to high. Your boat morphed into my boat in 2005. my boat just uses one pump. I like the 2 pump idea though. I wasn't aware that you could adjust the on and off pressures on my boat. Maybe you can on your boat. Hopes this helps.
 
Russ Calasant said:
There are two fresh water pumps in the engine room. On the salon panel they are labeled pump one and two. Does anyone know what the pumps feed? My pump two runs constant and when I shut it off I can't find any water that dose not work. Hmmmmm
Click to expand...
Russ- Congrats on the trip home! The two pumps, as you know, are located on the forward bulkhead of the ER. I had a similar problem with -my pumps and I disassembled the lower connection fitting, cleaned the filter and reassembled, voila they both worked fine!
If you need a further explanation let me know!
 
Woody, that's great- didn't even think of looking at the parts manual, duh! Thank you. Thanks to the rest of you also. I do have another systems question, there are dual waste tanks for the heads and it looks like one is dedicated to each. However there is a bridge and only a single waste outlet for Pumpout. I noticed today that they are currently at different levels. Do they not equalize? No way to divert? - other than just using the other head? Now that I think about it I only noticed one tank level indicator in the guest head. Maybe I didn't look in the other.
 
Carpedmman said:
Russ- Congrats on the trip home! The two pumps, as you know, are located on the forward bulkhead of the ER. I had a similar problem with -my pumps and I disassembled the lower connection fitting, cleaned the filter and reassembled, voila they both worked fine!
If you need a further explanation let me know!
Click to expand...

That was the first thing I looked for but both these pumps have been replaced and I couldn't find the in line filter. Any ideas?
 
Russ Calasant said:
That was the first thing I looked for but both these pumps have been replaced and I couldn't find the in line filter. Any ideas?
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Russ, Sorry, if the pump has been changed I can't help you. The fitting I cleaned was about 2" in diameter and looked a bit like a ball that could twist and split in half mounted just below the intake to the pump. My guess is that if there is an particulate in the tank that gets through the pick-up line, it ends up here in the filter.

In regards to your pumpout question above, there are two tank indicators-one per head. There is also a green light, I believe, which lights up when the main sump gets activated during a shower, heavy water usage in the galley etc. There is a big red handle which allows both tanks to be drained simultaneously if in the right position. I would have someone in the ER while you drain the tank (s) to verify proper positioning of this valve. I never move mine except for "exercising", which keeps it pliable. Hope this helpds! Keep the questions coming!
 
In regards to the holding tanks, I can't be sure how yours is set up, but on mine, there is only one tank sender and that is on the port <master> tank. Even thought there are sensor lights in both heads, they only read the port tank. There are valves at the output of each tank. If you open both of these, both tanks equalize and the tank indicator would be correct for each tank. If you kept one or both of the tank outlet valves closed and use only the strb head, you could overflow that tank even though the sensor may say empty.
 
Oops, on the Freshwater pumps, check everywhere for a leak. I had a lot of water way down deep in the salon from a leaky water heater. The pumps could also be airlocked. Do the sinks pump out water at regular rate when the pumps are on? I had a similar problem when we got our boat. One was ok, one was haunted. I just bit the bullet and replaced both.
 
Russ Calasant said:
There are two fresh water pumps in the engine room. On the salon panel they are labeled pump one and two. Does anyone know what the pumps feed? My pump two runs constant and when I shut it off I can't find any water that dose not work. Hmmmmm
Click to expand...
Do you have normal water everywhere if you shut off pump #1...in other words do you know #2 pumps water? If there is a pressure switch it either isn't working or the #2 isn't functioning well enough to reach that pressure or #2 is sucking air somewhere and can't reach shut off pressure. Broken tank pickup tube for #2??
 
Russ,

Where there are 2 pumps in parallel, the second pump is to provide pressure and flow. This system works great until you get air in the lines. When you do, you get what you got....i.e. one pump running all the time. Before you spend any money, turn off the pump that cycles and leave the constantly running pump on. Now go to the every faucet on the boat and open it full to see if it belches air. My guess is that you will eventually find it this way. ONce you get that pump to cycle off and on when you open a faucet, then turn on the second pump ad go thru the process again or until you have both pumps cycling. I'd bet that during winterizing some one ran the system dry and got it air bound.
 
Frank,I am a new owner of 460DA 2001 with Cummins 6CTA-8.3M in searching some old post about Diesel additives I see you use Stanadyne Lubricity Formula and Diesel Kleen Plus Cetane Boost. Do you add both at recommended ounces to gallons, or do you use less of
each because you use both.
 
Power Service has never published data on the change in lubricity that Diesel Kleen has, only that it adds lubricity. That's great, but I want to know my pumps and injectors are being properly lubricated and I can't determine that unless I know what Diesel Kleen is doing to the lubricity. So, I use both additives in their recommended strength as though I was adding nothing else. Initially, I would add whatever is required of all your additives to treat 400 gallons, then top off the tanks. Then keep up with hours and estimate the fuel you need at the next fill up and add only enough of the additives to treat the amount of fuel you plan to add next time. Always put the additives in the tank right before you add the fuel.
 
If I turn on one or both domestic system water pumps, it make no difference to the flow rate, which I think is rather poor, so I usually only have Pump One turned on. Is this correct.

Both pumps seem to cycle on and off correctly, it just does not make a difference, one pump or both.

I guess my question is, should I have both pumps on at the same time or not?

Any advice appreciated.

Graham
 
Thanks for your response Frank. I will follow your advice.
Russ, keep your questions coming. I will learn along with you.
 
With respect to the water pumps, it is usually pump #2 that runs constantly. I've noticed that it does this when the water tank level is very low, so keep the water level up. The other thing I did was to remove the pressure switch from pump #2, disassemble it and clean the wobbler plate. Seemed to fix the cycling problem for me. The on-pump filters catch a few bits of small debris but they do not truly filter the water.

Frank's suggestion about the air entrapment makes sense.

James
 
Graham Lorimer said:
If I turn on one or both domestic system water pumps, it make no difference to the flow rate, which I think is rather poor, so I usually only have Pump One turned on. Is this correct.

Both pumps seem to cycle on and off correctly, it just does not make a difference, one pump or both.

I guess my question is, should I have both pumps on at the same time or not?

Any advice appreciated.

Graham
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The flow rate and pressure should be substantially better with both pumps turned on. I suspect you have a little bit of trash in one pump or perhaps the diaphram has a hole in it. But be careful when taking t hose pumps apart.........there are more pieces than it seems necessary to pump a little water.
 
fwebster said:
Russ,

Where there are 2 pumps in parallel, the second pump is to provide pressure and flow. This system works great until you get air in the lines. When you do, you get what you got....i.e. one pump running all the time. Before you spend any money, turn off the pump that cycles and leave the constantly running pump on. Now go to the every faucet on the boat and open it full to see if it belches air. My guess is that you will eventually find it this way. ONce you get that pump to cycle off and on when you open a faucet, then turn on the second pump ad go thru the process again or until you have both pumps cycling. I'd bet that during winterizing some one ran the system dry and got it air bound.
Click to expand...

Frank, once again you were spot on! Problem solved, thank you very much!
 
Next question, there is a 110 outlet in the cockpit next to the trash can. Where is the gfi reset for this plug? I looked everywhere. It knocked out the ice maker too. Any one know?
 
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