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Old 01-06-2017, 03:45 PM   #21
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No, I do not.
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Old 01-06-2017, 04:46 PM   #22
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Would it be my boat I would have said my wife lost a bolt but no that's not from her
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Old 01-11-2017, 06:29 PM   #23
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Mystery Solved

I went to the boat and checked the alternator. No dice. Remembering that this looked like a bolt from a macerator pump, I checked the spare macerator and Bingo, that's where it came from.

The long version:

A year or more ago, I bought a spare Jabsco macerator pump. I put the carton in a large zip lock bag and stored it under the deck near where the battery charger and combiner are located. Also in the bag was a spare GPS antenna.

A few weeks ago I needed the spare antenna but when I opened the bag, I noticed that it was wet and the macerator carton was falling apart.

I took the macerator out of the carton and took it home so I could shrink wrap it in a food saver bag. At some point between opening the bag and taking the pump home, this part must have fallen into the bilge or gotten kicked into the bilge.

It must have been over torqued at the factory because the pump has never been installed or used.

I was able to contact the factory and it appears they must have had this problem in the past because the brass rods and nuts have been replaced with stainless steel bolts. The nice lady promised to send me a set at no cost.
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Old 01-11-2017, 06:46 PM   #24
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The "Other Gary" wins! Probably won't go over well with the "main Gary" though.
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Old 01-11-2017, 08:26 PM   #25
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Mystery explained, it was not from outer space after all
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Old 01-11-2017, 11:07 PM   #26
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Great job solving the mystery, TF sleuths. Where else can you post a picture of a broken boat bolt and find the part it came from?

Heal, Love the new Surfing Manatee avatar.
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Old 01-11-2017, 11:34 PM   #27
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Heal, Love the new Surfing Manatee avatar.
Looks like Tom Hanks trying to escape that island.

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Old 01-12-2017, 12:39 AM   #28
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The "Other Gary" wins! Probably won't go over well with the "main Gary" though.
The Main Gary is known as Arlene and she want's nothing to do with the macerator system. My department exclusively.
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Old 01-12-2017, 02:01 AM   #29
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...It must have been over torqued at the factory because the pump has never been installed or used.

I was able to contact the factory and it appears they must have had this problem in the past because the brass rods and nuts have been replaced with stainless steel bolts. The nice lady promised to send me a set at no cost.
Not over torqued from what I've seen. I too have found brand new, un used macerator pumps (plural) with broken brass studs. Not broken really. Corroded through. If you compare it to the pump you will find it is corroded through right at the paper gasket between the pump halves. I suspect they treat the paper gasket with an anti-poop chemical that eats the stud. I've gone to an industrial supplier and for very little money have bought SS threaded rod the same size, cut it to length and replaced all the studs on brand new pumps before installing.

If you have one of these pumps installed on your boat and it quits pumping, chances are a stud or two have come apart. Don't ask how I know this. LOL. Easy to fix with that SS rod.

Greg S
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Old 01-12-2017, 12:36 PM   #30
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Not over torqued from what I've seen. I too have found brand new, un used macerator pumps (plural) with broken brass studs. Not broken really. Corroded through. If you compare it to the pump you will find it is corroded through right at the paper gasket between the pump halves. I suspect they treat the paper gasket with an anti-poop chemical that eats the stud. I've gone to an industrial supplier and for very little money have bought SS threaded rod the same size, cut it to length and replaced all the studs on brand new pumps before installing.

If you have one of these pumps installed on your boat and it quits pumping, chances are a stud or two have come apart. Don't ask how I know this. LOL. Easy to fix with that SS rod.

Greg S
The company is sending me stainless steel bolts to repair this. I should have asked for two sets. One for the working pump and one for the spare.
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Old 02-11-2017, 03:19 PM   #31
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It's an end bolt broken off a macerator pump. I would think a Jabsco. Probably the very reason they make the damn things out of brass is so they break instead of backing out.

Someone tried to change out or check an impeller and the bolt broke falling in the bilge. I've fished for a broken one myself just last year.
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Old 02-11-2017, 03:20 PM   #32
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Oops, should have read the rest of the post before going right to quick reply. It's been answered already. I like the idea of putting stainless rods in there. I think I'll do that so I have them on hand if (OK, when) the new pump quits.
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