2460 Blower Question

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bhead56

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In my quest to track down a plaguing odor problem, I noticed that only one of the blower exhausts seemed to have any real air coming out of it. Upon inspection in the engine room, it appears that only the starboard side exhaust hose has a blower attached to it. The hose on the port side just goes to the outlet, no blower unit. Is this the normal layout? I would have thought that either both hoses would be "tee'd" into the blower unit, or it would have two blowers on it.

Next time our 2460 owners are in their engine room, appreciate if you would take a look.

Scott
 
IIRC one is to suck out the bad air, the one with the fan and the other delivers fresh air in via normal suction.
 
A lot of boats only have one blower. My 38 footer only has one.
 
Rommer is right. I have the same boat set up the same way. One hose is for sucking out the air from the bilge while the other hose replaces that air with fresh air from the outside.
 
Thanks for the input everyone. One less thing to worry about. However, it doesn't seem like a great design to me. With the blower outlet being literally 1/2" away from the inlet, isn't it likely that any fumes that the blower is exhausting, would get sucked right back into the engine room through the inlet hose. Would make more sense to me if the inlet were away from the blower outlet so that it brings in truly fresh air. Just me thinking out loud!!( well in writing)
Scott
 
Getting the fresh air down low to help dilute any gas fumes is the ultimate goal IMHO.
 
Dont forget the engine compartment is sealed and the engine needs lots of air when it is running.
Never could figure out why they didn't put an air vent directly to the engine.
 
quote:
Originally posted by bhead56

Thanks for the input everyone. One less thing to worry about. However, it doesn't seem like a great design to me. With the blower outlet being literally 1/2" away from the inlet, isn't it likely that any fumes that the blower is exhausting, would get sucked right back into the engine room through the inlet hose. Would make more sense to me if the inlet were away from the blower outlet so that it brings in truly fresh air. Just me thinking out loud!!( well in writing)
Scott

Click to expand...


bhead56,
Usually the blower has a vent hose attached to it that drops to the bottom of the bilge. Is yours not set up that way?
That's how the blower is able to pull (heavier than air) gas fumes from the bottom of the bilge.
 
"bhead56,
Usually the blower has a vent hose attached to it that drops to the bottom of the bilge. Is yours not set up that way?
That's how the blower is able to pull (heavier than air) gas fumes from the bottom of the bilge."

CWMS - yes the blower does have a vent hose that goes to the bottom of the bilge on the starboard side. There is an identical hose that goes from the "outlet on the transom" to the bottom of the engine on the port side. As Rommer indicated, this would bring fresh air in to the bottom of the bilge as the blower take . All makes sense to me. After all the comments, I do not believe that there is anything wrong / missing with my installation.

Thanks, Scott
 
Bhead;

If you having trouble with gas fumes in your bilge it may be worth some trouble to look into the cause further.

My last boat had carbs on them and invariably the engines would evaporate the fuel from the bowls after they were shut down and the smell would waft thru the engine room and back up into the boat thru the common bilge area. I found a solution; bilge buster at west marine. It is an ozone generator specifically made for the engine room. It cleaned up the smell immediately and it was a safe installation. If your boat is fuel injected, I would advise getting to the root of the problem before trying to install anything to remove the smell.
 
The reason why they don't vent engines directly to the outside is the engine performs the job of the blower while underway. That's why there is no requirement to run blowers while the engine is running.
 
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