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Discussion in 'Announcements & FAQs' started by Richard Prokop, Dec 31, 2011.
No, I haven't the compound shaping is simply cost prohibitive.
Time to revive old thread .
I would like to replace my louvered vent with S.S.
Are these still being offered?
My vents are the same as Pyro's, 14" x 5 5/8".
West Marine has some.
Check around on ebay. I've seen SS vents on there at times.
Ive wanted to find a source for these. Just joined this site yesterday. Im sure ill be ordering some soon. Our Express Cruiser 350 has 2 vents on both sides. Im a new boat owner & I keep the blowers on all the time. Is this necessary? Can i avoid running blowers all the time if I add more vents?
Blowers can be turned off once you're at planing speeds as there will be sufficient natural ventilation.
Thanks Lazy Dave, about the fastest i go is 10knots at 2500 rpm. Im taking it easy on these engines, they are 30 years old, with a little more than 1000 hrs each. I had both of the 16" props tuned when we had it hauled out. They weren't bad and didn't notice any improvement after the tune up. Sucks. I may try larger props. Anyway, at 10 knots, im not sure if i will have enough ventilation to shut off the blowers?
Google "searayman13" as it looks like he has some also.
Thanks Tom, i found his ebay store
I don't know how many vents it would take to eliminate the blower when running at low speeds. Without data/calculations, personally I wouldn't risk it. Short of data, it would all just be a 'feel good' guess - which is a bad idea in this situation.
On another note... use those engines! If they've been properly taken cared of, 1,000 hours is certainly not near the end of life.
Another note... maybe you want to upgrade your blowers to something quieter like a squirrel cage. Also, check out HOW your blowers are mounted - often you can adjust that to quiet them down so you don't get as much echoing/vibration.
Thanks again Dave. People do keep telling me to run those engines up more. The flowers I have are the inline plastic housing type, same as in ski boats n such. They aren't too noisy. They are mounted on the outsides of the center stringers, near the prop shafts. Even though I've replaced both alternator, I don't like the electrical drain there. Would prefer as much of that current be dedicated to the batteries as possible. The squirrel cage type would create great flow I'm sure, but sounds bulky.
I run blowers whenever engines are running, idle or cruise, too cheap to replace when they go out and helps with circulation at any speed
I agree with this philosophy. I run mine 100% of the time my main engines are running. Anything that supplies fresh cooler air to the bilge is a benefit and may even help the main engines run slightly more efficient. I don't worry about the battery drain they use as the alternators on the main engines have plenty of output to compensate.
Thanks susanandlance, thats what ive been doing. 30 year old boat, i may treat it to new blowers soon, no telling how okd they are??
Hey hottoddie, thanks. Good to know im doing the right thing. 30 y/o vessel, not sure how old the blowers are. Might replace them sometime soon
When they start to go bad the bearings will begin to squeal especially when you first turn them on. I would leave them alone until then.
I suspected as such, i appreciate your input!!
Different topic, im going to make a hardtop for our boat, it will cost about $1000 or less and have some design appeal to it. Been searching for dyi jobs people have already done, really hard to find so i will post my own soon. And several other issues i want to tacklesee you around hottoddie.