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Generator Install - Best Practices

Old 08-12-2019, 12:50 PM
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Default Generator Install - Best Practices

Hi Everyone,

I am hopefully the owner of a new to me, reconditioned marine genset. I'm looking for any suggestions or best practices installing it.

Please note: I am very competent when it comes to electrical installations, bonding, etc. I don't need responses relating to how I should not DIY, etc. I am simply looking for best practices, things to avoid, etc. .... it's always worth asking someone who has been through it before.

Thanks!
Andy
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Old 08-12-2019, 01:29 PM
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#1 Use a perforated round strainer on the outside of the hull not a scoop type that forces water in when moving. (inside strainer not required with this also)
2. Have sufficient slope down from exhaust elbow to inlet of lift muffler
3. have a loop after lift muffler and at least 1" per foot of drop in exhaust tubing out of the transom (if not using a water separator)
4. Use a seacock on the water intake through hull and close it if running without the genset operating (minimal risk with round strainer but still a good practice)

Flooding is the biggest killer of gensets but the above should help.
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Old 08-12-2019, 01:46 PM
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Excellent advice Bills - much appreciated!! ... keep them coming :-)
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Old 08-13-2019, 10:34 AM
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I will reiterate using the lift muffler and make sure to engineer a proper lift.

Also - leave enough space to work on the thing! mine "fit" in the space and runs great but boy are oil changes and maintenance a pain.
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Old 08-13-2019, 05:39 PM
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Did the boat have a genset before? If not you will have to add a shore power/generator switch on the panel.
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Old 08-13-2019, 06:29 PM
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here is another I ran into:

how do you plan on using it ? Do you have AC loads to run like AC and fridge and hot water ? Or do you plan to run DC loads off battery and just run battery charger?

I have a mix of both. If you are sitting all day fishing and have MFD, bAit pump, lights , fridge etc that all run off DC power make sure you have a battery charger that can keep up. I realized I was drawing 20–30 amps DC and my charger was 10 amps per bank so I couldn’t keep up. installed new charger

Sam
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Old 08-14-2019, 08:08 PM
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Originally Posted by hottoddie View Post
Did the boat have a genset before? If not you will have to add a shore power/generator switch on the panel.
Definitely plan on this. Instead of a switch, I planned to replace the entire AC panel. Currently it is a household type panel, which was common with Silvertons in the mid '70s. The new panel would accomodate 2 shore power feeds (vs the current 1), a genset, or an inverter.

Originally Posted by sammythetuna View Post
here is another I ran into:

how do you plan on using it ? Do you have AC loads to run like AC and fridge and hot water ? Or do you plan to run DC loads off battery and just run battery charger?

I have a mix of both. If you are sitting all day fishing and have MFD, bAit pump, lights , fridge etc that all run off DC power make sure you have a battery charger that can keep up. I realized I was drawing 20–30 amps DC and my charger was 10 amps per bank so I couldn’t keep up. installed new charger

Sam
Honestly, Sam, I am doing this just to have AC underway because I hate the hot weather. I know that makes me a terrible boater, but it's just me :-P
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Old 08-15-2019, 04:39 AM
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Originally Posted by andycfi View Post
Definitely plan on this. Instead of a switch, I planned to replace the entire AC panel. Currently it is a household type panel, which was common with Silvertons in the mid '70s. The new panel would accomodate 2 shore power feeds (vs the current 1), a genset, or an inverter.



Honestly, Sam, I am doing this just to have AC underway because I hate the hot weather. I know that makes me a terrible boater, but it's just me :-P
not at all. Lots of guys do that. Just makes you a terrible hot weather person

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