Hey 410 owners Carol, Chris, John, and others: do you guys worry about your diesel engine getting enough fresh air to run effectively? Every other boat I have owned has had 3" or 4" duct into the engine compartment from vents on deck to bring in enough fresh air. The engine on the 410 is pretty well sealed, especially if all the cockpit and aft lockers are sealed up with gaskets to make them waterproof. Right now I guess enough air comes down the channel under the aft bunk from the aft lockers because there are gaps between the locker lids and the locker tops. What do you think? Is it worth adding vents on the cockpit combing and running some duct into the engine compartment? thanks for your advice, John Van Wagoner
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good question
John, I asked my (yanmar) mechanic this very question the first time the engine was serviced. He pointed out that the engine draws air from the bilges, and assured me that it was getting all it needed. My diesel has gone some 400 hours with nary a cough or a sputter, and so I'm starting to believe him. (Happy to report that the only problem I've had with the darling yanmar, a problem I've had repeatedly, is that guests seated in the cockpit will lean back against the arch on the port side, accidently pressing the kill switch with their backs. In accordance with Murphy's Law, this usually occurs during docking maneuvers. I've solved this problem to some extent by dictating that in-laws must be lashed to the mast whenever the boat is underway.)
John, I asked my (yanmar) mechanic this very question the first time the engine was serviced. He pointed out that the engine draws air from the bilges, and assured me that it was getting all it needed. My diesel has gone some 400 hours with nary a cough or a sputter, and so I'm starting to believe him. (Happy to report that the only problem I've had with the darling yanmar, a problem I've had repeatedly, is that guests seated in the cockpit will lean back against the arch on the port side, accidently pressing the kill switch with their backs. In accordance with Murphy's Law, this usually occurs during docking maneuvers. I've solved this problem to some extent by dictating that in-laws must be lashed to the mast whenever the boat is underway.)
Not to worry !
We chartered a 410 this past Spring in the BVI's and the engine ran smooth and motored nicely. I don't think you have to be concerned about the engine starving for air. But interesting enough, we experienced the same problem as John where a crewmember leaned against the kill switch while I was maneuvering in close quarters. The first time it happened was startling but the second time we knew what it was.
We chartered a 410 this past Spring in the BVI's and the engine ran smooth and motored nicely. I don't think you have to be concerned about the engine starving for air. But interesting enough, we experienced the same problem as John where a crewmember leaned against the kill switch while I was maneuvering in close quarters. The first time it happened was startling but the second time we knew what it was.
Fresh Air
If your 410 has a generator and air conditining, you might consider adding an intake vent line. We had to put one on our 450 because when running the gen and air, the boat is so tight that the exhaust fan for the engine room sucked all the cool air out of the boat! If you dont have the gen/air situation, then the engine gets plenty of air from the bilge.
If your 410 has a generator and air conditining, you might consider adding an intake vent line. We had to put one on our 450 because when running the gen and air, the boat is so tight that the exhaust fan for the engine room sucked all the cool air out of the boat! If you dont have the gen/air situation, then the engine gets plenty of air from the bilge.
Generaqtor cooling
John, I also have not had any diesel problems and have not noticed any appreciable cabin warming while motoring in thew summer months. I did add a Northern Lights 6kw genset in the starboard lazarette (where it's spec'd out from the factory) and managed to wedge the factory sound shield around it (I don't think Hunter uses the sound shield and the NL rep was amazed we got it to fit). Initially the genset ran a little hot in the enclosure, so we added a small AC fan to the service hole that runs whenever the genset is on. This cost about $20 and works beautifully. As an aside, I finally mounted my radar on the mast (Raytheon makes a great, lightweight mast mount for about $200). Thanks to y9ou guys for advice about this. Also, I mounted my adjustable inner forestay and am picking up my staysail tomorrow. Feel free to e-mail me about any of this if I can be of help. Fair winds! Chris Webb s/v Grand Cru II crwebb@aol.com
John, I also have not had any diesel problems and have not noticed any appreciable cabin warming while motoring in thew summer months. I did add a Northern Lights 6kw genset in the starboard lazarette (where it's spec'd out from the factory) and managed to wedge the factory sound shield around it (I don't think Hunter uses the sound shield and the NL rep was amazed we got it to fit). Initially the genset ran a little hot in the enclosure, so we added a small AC fan to the service hole that runs whenever the genset is on. This cost about $20 and works beautifully. As an aside, I finally mounted my radar on the mast (Raytheon makes a great, lightweight mast mount for about $200). Thanks to y9ou guys for advice about this. Also, I mounted my adjustable inner forestay and am picking up my staysail tomorrow. Feel free to e-mail me about any of this if I can be of help. Fair winds! Chris Webb s/v Grand Cru II crwebb@aol.com
kill switch problem
I solved the kill switch problem by mounting a ship's bell directly above console. It protrudes about 6" and effectively keeps people from sitting there. S/V Spellbinder H410
I solved the kill switch problem by mounting a ship's bell directly above console. It protrudes about 6" and effectively keeps people from sitting there. S/V Spellbinder H410
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