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Old 04-28-2017, 03:24 PM   #1
hmason's Avatar
City: Stuart FL
Vessel Name: Magic
Vessel Model: Grand Banks 46 Europa
Join Date: Aug 2013
Posts: 2,378
Generator Sound Enclosure

I opened the sound shield to perform normal maintenance on my generator. I discovered some water in the drip pan and a goodly pile of salt. I repaired the raw water leak but it led me to question the "safety" aspects of the sound shield enclosure. So, is there any good reason to have one beyond sound deadening?

I would have seen the leak sooner without the enclosure and I suspect the generator would run cooler without it as well. Comments and what you do would be appreciated.

Magic, 1996 Grand Banks Europa
Westport, CT and Stuart, FL
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Old 04-28-2017, 04:15 PM   #2
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City: Between Oregon and Alaska
Vessel Name: Charlie Harper
Vessel Model: Wheeler Shipyard 83'
Join Date: Jun 2016
Posts: 2,328
They can slow or contain a fire. Usually the generator end wiring or end bearing. Many people don't realize, sealed bearing grease has a life of about 5 years, even with light use. Grease gets hard or used up and the bearing gets red hot before electricity fails and alerts the operator.

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Old 04-28-2017, 04:33 PM   #3
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City: South Florida
Join Date: Sep 2014
Posts: 868
Originally Posted by hmason View Post
. So, is there any good reason to have one beyond sound deadening?

The generator head end is more efficient at cooler temperatures, thats why the air inlet is on that end of the enclosure. The engine itself could care less, and there may be a lifespan penalty of a small % of some hoses and belts.
It's a sound enclosure, noise reduction is its primary function and most factory enclosures do a good to excellent job of noise reduction. Get a Db meter app for your smart phone (some are free) and take readings with the enclosure door open or closed, you'll get an objective idea of what to expect if you choose to remove it.
Otherwise, as the unit ages increase the maintenance check frequency and live with a quieter boat. IMHO noise reduction is a good reason to have one $0.02

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Old 04-28-2017, 04:39 PM   #4
Join Date: Jun 2014
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I do an inspection before starting every time.
That way you have the benefit of no lurking surprises.
It's simply the prudent thing to do...
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