480 DB Owners Club

cod said:
I honestly don’t know what a freshwater flush will do if it’s not done after each use. Take it a step further and flush with Barnacle Buster. I set up a 5 gallon bucket with a pump and cycle fresh water and then add the Barnacle Buster. You’ll see the clean blue water turn to baby s#$& brown.
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The "annual flush" that is now being recommended is with a descaler, not just a fresh water flush

So on your setup are you running it through the heat exchanger as well? That is what I used to to on my 360DA with twin 8.1 motors. Where to you hook in and drain out?
 
rlynch03 said:
I would recommend to get some seat time and document the RPM, Speed and GPH with 3/4 to Full weight with gas and gear before cutting the props. Several of us have trimmed more than an 1" and still are not at the desired GPH at 2000rpm's.
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I would like to do this only once, unfortunately, if and when this deal is done I'll be running the boat back to Virginia and would like to preserve the manifold gaskets as they currently are... No leaks.
 
SeadawgVB said:
The "annual flush" that is now being recommended is with a descaler, not just a fresh water flush

So on your setup are you running it through the heat exchanger as well? That is what I used to to on my 360DA with twin 8.1 motors. Where to you hook in and drain out?
Click to expand...

Yes it runs thru the aftercooler and the heat exchanger. The only item it doesn’t run thru is the fuel cooler. If you want to run it thru the fuel cooler you would need to remove the impeller.
So I remove the pencil zinc on the upper stainless steel tube that goes into the aftercooler and install a barb fitting with a garden hose. Then remove the exhaust hose off of the exhaust riser. I made up a pvc adapter with reducers for a garden hose. I have a 5 gallon bucket with a bildge pump mounted and fittings for the hose hook ups. I fill the bucket with fresh water and let it cycle. The water will slowly be lost thru the shaft dripless seal water supply. I do this for a while continuing to replenish the bucket with fresh water until I have mostly fresh water cycling. I then will clamp the dripless hose so no water is lost. I lower the water in the bucket to as minimal as possible but still cycling. This is so the Barnacle Buster has a better ratio. I then pour a gallon of Barnacle Buster concentrate into the bucket as it’s cycling. I cycle for about an hour.
 
cod said:
Yes it runs thru the aftercooler and the heat exchanger. The only item it doesn’t run thru is the fuel cooler. If you want to run it thru the fuel cooler you would need to remove the impeller.
So I remove the pencil zinc on the upper stainless steel tube that goes into the aftercooler and install a barb fitting with a garden hose. Then remove the exhaust hose off of the exhaust riser. I made up a pvc adapter with reducers for a garden hose. I have a 5 gallon bucket with a bildge pump mounted and fittings for the hose hook ups. I fill the bucket with fresh water and let it cycle. The water will slowly be lost thru the shaft dripless seal water supply. I do this for a while continuing to replenish the bucket with fresh water until I have mostly fresh water cycling. I then will clamp the dripless hose so no water is lost. I lower the water in the bucket to as minimal as possible but still cycling. This is so the Barnacle Buster has a better ratio. I then pour a gallon of Barnacle Buster concentrate into the bucket as it’s cycling. I cycle for about an hour.
Click to expand...

Perfect, thank you! Looks like I'll need a couple different fittings for my flushing rig, but very similar.
 
SeadawgVB said:
Perfect, thank you! Looks like I'll need a couple different fittings for my flushing rig, but very similar.
Click to expand...
There are several ways to descale the engines - My 52 has flushing interfaces all collocated above the waterline in the lazerette next to the ladder. One for each engine and one for the generator. These were installed before I bought the boat. Regardless, in this picture of the Port engine you can see the flushing hose that is tapped into the elbow at the strainer. You can also see that I relocated the fuel cooler which was in an abysmal location below the engine and now easily serviceable. The Starboard engine has the fuel cooler in a more reasonable location. So, I remove the engine's raw water impeller and reinstall the pump cover, remove the four zinc's, remove the exhaust raw water injection hose (you can see it is removed in this picture at the gear cooler) and descale through the entire raw water cooling system including the fuel and gear coolers. Once I get everything in the boat it takes me thirty minutes to start recirculating the descaler of which twenty minutes is pulling the impeller.... This is done every spring just before we do the annual boat haul. (Edited to fix port vs starboard..)
IMG_4580.jpg
 
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Tom, so this post confirms that you’re a engineering genius! because it’s the simple things that you don’t waste time but have trouble with! LOL. Do you see it?
 
cod said:
Tom, so this post confirms that you’re a engineering genius! because it’s the simple things that you don’t waste time but have trouble with! LOL. Do you see it?
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Other than that single hose clamp on the flush hose? Which does drive me bananas....
 
ttmott said:
There are several ways to descale the engines - My 52 has flushing interfaces all collocated above the waterline in the lazerette next to the ladder. One for each engine and one for the generator. These were installed before I bought the boat. Regardless, in this picture of the starboard engine you can see the flushing hose that is tapped into the elbow at the strainer. You can also see that I relocated the fuel cooler which was in an abysmal location below the engine and now easily serviceable. The port engine has the fuel cooler in a more reasonable location. So, I remove the engine's raw water impeller and reinstall the pump cover, remove the four zinc's, remove the exhaust raw water injection hose (you can see it is removed in this picture at the gear cooler) and descale through the entire raw water cooling system including the fuel and gear coolers. Once I get everything in the boat it takes me thirty minutes to start recirculating the descaler of which twenty minutes is pulling the impeller.... This is done every spring just before we do the annual boat haul.
View attachment 95863
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How do you handle the hoses to the shaft seals? Clamp them off our remove completely?
 
Irie308 said:
How do you handle the hoses to the shaft seals? Clamp them off our remove completely?
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Ah - that hose gets disconnected and the fitting at the cooler capped for flushing.
cod said:
Nope... Isn’t that a picture of you Port engine and the Starboard is in a more reasonable location......
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Sheesh - yes; the simplest of things.... I fixed that..
 
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I know there have been some previous discussions on the washer/dryer combo on this thread over the years, but I'm not clear on a few things and looking for additional info closest in time to my model boat -- 2003/4 480DB. The boat did not come with the washer/dryer combo option.
Was the specific model washer/dryer sea ray was putting in during this time frame a Splendide 8000 HD? Anyone know the measurements or whether the Splendide 2100XC is the same size?
 
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SaraDru is now ours. In going over the survey results no water penetration or blisters to be found. Looking forward to a spring launch as she is tucked away for the winter. Major service on the MAN’s will be done over the winter. Looking forward to learning a lot from this group. Happy Holidays everybody stay safe.

Block Bound
 
Pictures or it didn't happen.....

and congratulations!
 
Congratulations. All the best!
 
ttmott said:
There are several ways to descale the engines - My 52 has flushing interfaces all collocated above the waterline in the lazerette next to the ladder. One for each engine and one for the generator. These were installed before I bought the boat. Regardless, in this picture of the Port engine you can see the flushing hose that is tapped into the elbow at the strainer. You can also see that I relocated the fuel cooler which was in an abysmal location below the engine and now easily serviceable. The Starboard engine has the fuel cooler in a more reasonable location. So, I remove the engine's raw water impeller and reinstall the pump cover, remove the four zinc's, remove the exhaust raw water injection hose (you can see it is removed in this picture at the gear cooler) and descale through the entire raw water cooling system including the fuel and gear coolers. Once I get everything in the boat it takes me thirty minutes to start recirculating the descaler of which twenty minutes is pulling the impeller.... This is done every spring just before we do the annual boat haul. (Edited to fix port vs starboard..)
View attachment 95863
Click to expand...
Tom - tell me about the elbow at the strainer. How did you do that...
 
carterchapman said:
Tom - tell me about the elbow at the strainer. How did you do that...
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Hey Carter - I didn't do that; it was the owners before me. It looks to be drilled and tapped 1/2" NPT and a pipe to hose fitting installed. I would like to have two hose clamps on it but the fitting isn't long enough.
 
Block Bound said:
SaraDru is now ours. In going over the survey results no water penetration or blisters to be found. Looking forward to a spring launch as she is tucked away for the winter. Major service on the MAN’s will be done over the winter. Looking forward to learning a lot from this group. Happy Holidays everybody stay safe.

Block Bound
Click to expand...
 
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