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31 Jupiter fuel tanks

Old 07-13-2019, 09:34 AM
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Default 31 Jupiter fuel tanks

Anyone have tanks replaced on 31 Jupiter in Tampa/St Pete? Both my saddle tanks need to be replaced. Spoke with Jupiter and they indicated the console does not need to be removed. Appreciate insights from anyone who has gone through this. Thanks
Old 07-14-2019, 05:06 AM
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My friend did his. The cut the deck and pull them out from there. Tanks run from behind the console aft and out side the live well and storage area under the rocket launcher. Be sure to get a really good structural glass guy. You don't want to see the deck cuts after the job is done. .What year is your Jupiter.
Old 07-14-2019, 05:30 AM
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2006. Thought I would have gotten a little more mileage out of them.
Old 07-14-2019, 06:41 AM
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My buddy has a nice set he bought from best fab. unfortunately they were a 1/2 inch too wide I guess either best fab or the factory did not have their numbers straight I think he has the tanks you could probably buy them at a good price PM me if you are Interested.
Old 07-14-2019, 12:36 PM
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Originally Posted by Tampa Mariner View Post
2006. Thought I would have gotten a little more mileage out of them.
I Would have thought. Where is the leak? Mine is and 03.....
Old 07-14-2019, 01:20 PM
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Tim at blue water fiberglass in port richey replaced mine in the Contender. I would highly recommend him. Very easy to deal with, sent me a lot of photo updates and does very high quality fiberglass structural and finish work.
Old 07-14-2019, 03:23 PM
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Originally Posted by tortugaboats View Post
My buddy has a nice set he bought from best fab. unfortunately they were a 1/2 inch too wide I guess either best fab or the factory did not have their numbers straight I think he has the tanks you could probably buy them at a good price PM me if you are Interested.
what year is you buddy’s Jupiter ?
Old 07-14-2019, 03:36 PM
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Originally Posted by TsunamiTsling View Post
I Would have thought. Where is the leak? Mine is and 03.....
Not sure. Pressure tested multiple times and check everything all fittings, senders etc. Leaks with tanks half full when trailering. Tanks don’t leak without movement so the leaks must be top/higher in the tanks.
Old 07-14-2019, 04:00 PM
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Originally Posted by tortugaboats View Post
My buddy has a nice set he bought from best fab. unfortunately they were a 1/2 inch too wide I guess either best fab or the factory did not have their numbers straight I think he has the tanks you could probably buy them at a good price PM me if you are Interested.
PM sent
Old 07-14-2019, 04:31 PM
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Check your messages
Old 07-16-2019, 08:28 AM
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Originally Posted by Tampa Mariner View Post
2006. Thought I would have gotten a little more mileage out of them.
Gent's, I have said this hundreds of time "the average age for an aluminum fuel tank is 12 years". Some are more lucky than others....
Old 07-16-2019, 06:48 PM
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Both leaking at the same time? Just sounds a little odd in my opinion. My 31 had three tanks, it’s a ‘96 & still not leaking. A couple of years ago I stopped at Nick‘s Creative Marine and talked to Nick’s son about replacing fuel tanks if mine ever developed a leak. He told me there was two options - First option was to pull the motors remove the bracket cut into the transom and pull both saddle tanks out of the back of the boat. Second option was to cut the floor and pull them out of the floor. Glad I never had to replace mine.
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Old 07-16-2019, 07:27 PM
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Originally Posted by Parrmount26 View Post
Both leaking at the same time? Just sounds a little odd in my opinion. My 31 had three tanks, it’s a ‘96 & still not leaking. A couple of years ago I stopped at Nick‘s Creative Marine and talked to Nick’s son about replacing fuel tanks if mine ever developed a leak. He told me there was two options - First option was to pull the motors remove the bracket cut into the transom and pull both saddle tanks out of the back of the boat. Second option was to cut the floor and pull them out of the floor. Glad I never had to replace mine.
I share your opinion which is why we tripple checked them. To be honest, even if only one failed I would most likely replace both anyway. I saw an earlier post about how Nick removes them through the transom. Given how the necks for the fill and vent are welded to side of the tank and extend 8 inches, I don’t see that is an option or at least you couldn’t slide them back in unless I guess they were redesigned.
Old 07-17-2019, 05:46 AM
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Originally Posted by Tampa Mariner View Post


I share your opinion which is why we tripple checked them. To be honest, even if only one failed I would most likely replace both anyway. I saw an earlier post about how Nick removes them through the transom. Given how the necks for the fill and vent are welded to side of the tank and extend 8 inches, I don’t see that is an option or at least you couldn’t slide them back in unless I guess they were redesigned.
Wow, that is a shame. I’m sorry you’re having that issue. I agree with you on replacing both at the same time. It will not be easy on the wallet I’m sure. I did question him on the venting and fill issue. He said they were re-designed and extra hose was added on the replacement tanks to accommodate reattachment/vent/fill issues upon sliding them back in.
Old 07-17-2019, 12:36 PM
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Default "06" Jupiter owner also

Subscribed!
Would you mind Posting Removal and Replace Pics when this happens?
Old 07-17-2019, 02:43 PM
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Will do
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Old 07-22-2019, 11:48 AM
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how and the heck could removing the bracket and cutting the transom out be easier than cutting the deck? Hard to imagine..
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Old 07-22-2019, 04:03 PM
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Originally Posted by ono loco View Post
how and the heck could removing the bracket and cutting the transom out be easier than cutting the deck? Hard to imagine..
I’ve wondered the same thing. Only thing I can figure is it’s the time saved on the deck finish work getting it right. Because of the bracket and stringer locations, I can see how the structural cost of that method wouldn’t be as bad as you’d imagine, but still...

Thankfully my leak turned out to be a fuel sender gasket and I didn’t get to find out.
Old 07-23-2019, 06:09 AM
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Originally Posted by Texas 17 View Post


I’ve wondered the same thing. Only thing I can figure is it’s the time saved on the deck finish work getting it right. Because of the bracket and stringer locations, I can see how the structural cost of that method wouldn’t be as bad as you’d imagine, but still...

Thankfully my leak turned out to be a fuel sender gasket and I didn’t get to find out.
I believe you are right. Non skid is (nearly) impossible to match and the seams where the deck is cut seem to re-appear in time. That said, either way it is a major expense. I get why the transom option is an alternative, but I wonder about the structural integrity of it once completed. I hope it goes well on this boat and it would be great to see in pictures how the process goes and turns out.

Old 07-23-2019, 10:34 AM
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Subscribed too. I have a 2001 31' Jupiter. Luckily no issues yet with the 3 fuel tanks and we have had her in some rough stuff numerous times. Located in Palm Beach Gardens. I am curious to know the final bill and see some photos. I wouldn't mind holding onto my hull for a while longer and would like to have an idea of what I'd be getting into with the tanks, when needed to replace.
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