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Old 01-09-2017, 06:54 AM   #41
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Our mainship has original aluminum tanks. And knock on wood, they look good.

Hey, that rhymed!

Good luck with your search
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Old 01-09-2017, 09:10 PM   #42
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Don't forget North Pacific for fiberglass tanks.

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Old 01-19-2017, 04:33 PM   #43
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i have an 86 SENATOR with a sng Perkins 354 thinking about replacing leaking tanks. From this forum it sounds like cutting the tnks out in parts and replacing with smaller tanks maybe the way to go. Willl the smaller tanks adversley effect the resale value?
Any other Senator owners in the Norfolk Va area have similar problems/ Open to suggestions on how to make these repairs...I have seen on utube someone "cutting the bottom out of the boat" to make the repair. Is it just me or does this sound like a stupid way to repair?
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Old 01-19-2017, 05:50 PM   #44
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Rivieras have f/g tanks. Probably Maritimo too. A marina neighbour who imported his 1990s Riv from Fl. said the surveyor commented with approval on tank construction.
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Old 01-19-2017, 06:08 PM   #45
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I am looking at three trawlers with steel tanks, one has one of the tanks replaced with two aluminum,,, it was removed from inside the engine room, one engine removed and the tank was cut in three pcs and removed.
I agree with you Twilight,,,, not going to cut the outside of a boat.
The side struts run behind the tanks and you would have to cut the inside anyway to get the new tanks in.
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Old 01-19-2017, 07:21 PM   #46
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Quote:
Originally Posted by Twilight time View Post
i have an 86 SENATOR with a sng Perkins 354 thinking about replacing leaking tanks. From this forum it sounds like cutting the tnks out in parts and replacing with smaller tanks maybe the way to go. Willl the smaller tanks adversley effect the resale value?
Any other Senator owners in the Norfolk Va area have similar problems/ Open to suggestions on how to make these repairs...I have seen on utube someone "cutting the bottom out of the boat" to make the repair. Is it just me or does this sound like a stupid way to repair?
It should only affect resale for those that don't get that you don't need 1200 mile range on a boat that rarely goes 100 miles between fuel stops.

Salesmanship describing the positives of smaller fuel tanks isn't all that hard.
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Old 01-19-2017, 08:13 PM   #47
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SS is approved for diesel fuel tanks if it is 316L or 317L and minimally 0.0747" thick. 304 not so good. The L stands for low carbon, meaning it can be correctly welded. Many Al tanks have corroded out due to dissimilar metals being used, similarly the same can happen to SS. Unlike standard steel, both Al and SS need good air circulation to allow the protective oxidation process to work.
I certainly agree. My original 316 SS tanks corroded externally on the bottom. Water sometimes pooled underneath the tanks and after 35 years, they started leaking. They were only .04" wall thickness.

Luckily, they started leaking at the same time as the old volvo died, and were fairly easy to remove with the engine out. The tanks have been replaced with heavier 316L SS, now with good air circulation. They should last for another 50 years.
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Old 01-20-2017, 09:26 AM   #48
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Our 1977 West Indian 36 has aluminum tanks from the factory. I personally don't feel aluminum is that great. Our previous boat had aluminum tanks and water pooled in a corner under it and the metal rotted where it was in contact. This was fresh water so I'd hate to see what salt water would do. It's too bad builders don't pay more attention to tank access for both inspection and removal.
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Old 01-20-2017, 06:47 PM   #49
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Quote:
Originally Posted by Twilight time View Post
i have an 86 SENATOR with a sng Perkins 354 thinking about replacing leaking tanks. From this forum it sounds like cutting the tnks out in parts and replacing with smaller tanks maybe the way to go. Willl the smaller tanks adversley effect the resale value?
Any other Senator owners in the Norfolk Va area have similar problems/ Open to suggestions on how to make these repairs...I have seen on utube someone "cutting the bottom out of the boat" to make the repair. Is it just me or does this sound like a stupid way to repair?

Smaller , good tanks won't affect the sale as much as leaking tanks. More and more older boats have to do something. A prospective owner will think, aha, one less job to be done as long as a good job was done.

Many boats like this do not lose a huge amount of capacity. It can be a big ++ for the boat and owner.

Best way is to stop/prevent the rusting if it's not already too late.
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Old 01-26-2017, 09:18 AM   #50
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Nordic Tugs have Marine Grade Aluminum Tanks. Click image for larger version

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Old 01-26-2017, 09:30 AM   #51
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Nordic Tugs have Marine Grade Aluminum Tanks. Attachment 60979
As do Tollycraft!
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Old 01-30-2017, 03:21 AM   #52
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I have been contemplating a preventative chop out of the two 150 gallon "iron" tanks on my Senator. No troubles yet.
Moeller offers a number of spun poly tanks that would fit thru the hatches. Being an A&P/Aviator, I keep thinking multi tank fuel system. 250 gallon capacity for less than $1500 and two days work.
Cut to the chase, How much kerosene do you need to tanker for coastal cruising @+-2GPH?
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Old 01-30-2017, 07:32 AM   #53
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I have been making the trip on my 2-58 gallon Moller tanks....NJ to FL.

I usually can go 250 to 275 miles no sweat. With a 5 gallon jerry can of fresh fuel for engine work, I will push to 300 miles but usually not.

If my average day is a 6 hr day, that's only 12g per day and 100 gal is 9 days between refueling.

You can see the fuel in the tanks so no guessing or trusting guages...you can just about sucks them dry before switching so you get to use almost all your fuel.

I love all the room it freed up in the engine room to reorganize. Everything got moved away from the engine and genset sides for easy maintenance, and lots more storage.
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Old 01-30-2017, 07:45 AM   #54
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I have to remeasure many things, but it looks like a 99 gallon on each side would go in and the ER with the single 354 Perkins would be rather roomy.
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Old 01-30-2017, 07:58 AM   #55
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My limitation was the measurement between the top of the engine and the edge of the hatches. Once in the engine roon, I could have used much bigger tanks.
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Old 01-30-2017, 08:01 AM   #56
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why bigger?
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Old 01-30-2017, 08:03 AM   #57
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ps and CWO... sounds like you two got it going! Bigger isn't always better... or in this case could also say, better isn't always bigger!


If I ever need to replace my tanks your route is what I'd follow.
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Old 01-30-2017, 08:11 AM   #58
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Assuming all fits it will give a 18" high and 24" wide bench on both sides of the ER.
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Old 01-30-2017, 08:18 AM   #59
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Or maybe i'll cut it to 75 a side and make the ER another state room
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Old 01-30-2017, 08:27 AM   #60
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Was also thinking of a small header tank for the Genset. It's an aviation thing, any thoughts?
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