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TOPIC: Element auxiliary fuel tank

Element auxiliary fuel tank 03 Nov 2014 20:13 #1

  • Banana Slug
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Does anyone with the Element XL (or even the base Element) know if there is sufficient room to replace the 6 gal aux. fuel tank with an additional 12 gal? I'm sure 18 gal is sufficient for the majority of my needs, however I'd like to know that I could have as much as 24 gallons if ever needed.

I'm very close to pulling the trigger on a 2015 XL with the Sport options.

Thanks.
Joe

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~Joe
2015 Element XL
Mercury 115

Element auxiliary fuel tank 03 Nov 2014 20:45 #2

  • efarstad
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Based on this image, showing the 6 gallon, you might be able to find a larger/taller tank that has the same width and length as the 6 gallon but you'd have to get it's dimensions first and then research from there. There are several gas tank manufacturers, so I imagine you'd find something bigger than 6 gallons. Good luck!

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2014 Flight Package Element
Upgrades: 90HP, Smart Tabs, 4 Blade Prop, Mercury Monitor Gauge, Bimini Top, Radio w/4 speaker + subwoofer
Lacey, WA

Element auxiliary fuel tank 07 Nov 2014 13:13 #3

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I emailed my sales rep the othe rday to ask him if the boat I was interested in had the aux fuel tank. He wasn't sure if it did or not and would check and get back to me. Haven't heard back yet. But he said that the XL's standard fuel tank is bigger than the tank in the standard Element. He didn't specify how large it was and hasn't gotten back to me. I'm going tomorrow to hopefully make a deal on the XL so I'll check it out the fuel tank in person. Has anyone heard that the XL's main tank is larger than the main tank in the standard Element?

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~Joe
2015 Element XL
Mercury 115

Element auxiliary fuel tank 07 Nov 2014 18:32 #4

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The XL comes with the same 12 gallon tank as the 16' element...your rep is wrong. The optional 6 gives you a total of 18...unless you find another tank that has more capacity that fits in the same space. Good luck.

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2014 Flight Package Element
Upgrades: 90HP, Smart Tabs, 4 Blade Prop, Mercury Monitor Gauge, Bimini Top, Radio w/4 speaker + subwoofer
Lacey, WA

Element auxiliary fuel tank 07 Nov 2014 19:32 #5

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efarstad wrote: The XL comes with the same 12 gallon tank as the 16' element...your rep is wrong. The optional 6 gives you a total of 18...unless you find another tank that has more capacity that fits in the same space. Good luck.


Correct

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Element auxiliary fuel tank 08 Nov 2014 10:42 #6

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Ruffryder wrote:

efarstad wrote: The XL comes with the same 12 gallon tank as the 16' element...your rep is wrong. The optional 6 gives you a total of 18...unless you find another tank that has more capacity that fits in the same space. Good luck.


Correct


+1...
I hate how the reps just make that crap up when they don't know, that's why you can never believe what they are saying.

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Element auxiliary fuel tank 14 Feb 2015 01:09 #7

  • greebo
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There is room for 2 x 12 gal tanks in the Element XL.
The only reason I can see that you would need a 6 gal auxiliary tank is reduce the weight.
On my XL (and I presume all) there are two equal size depressions in the floor, and both will take the larger tank.
What I intend to do (unless someone tells me a reason not to) is put in two 12gal tanks, with there fuel outlets facing each other. Then I figure I can simply swap the fuel line over from tank to tank. This will avoid the need to have a changeover tap installed and will give me 24 gals capacity.
I can't see any reason not to do this.

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Peter Walter-Smith
Riverport of Goolwa, South Australia
2014 Bayliner Element XL
115HP Mercury EFI

Element auxiliary fuel tank 17 Feb 2015 16:31 #8

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No reason not to do it, because it will work. I'm waiting to see how my fuel usage shakes out with just the 12 gallons and a 115HP mercury before I decide if I need more fuel capacity.

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~Joe
2015 Element XL
Mercury 115

Element auxiliary fuel tank - fittings 19 Feb 2015 03:38 #9

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I have found a small problem with fitting another tank.
My Element XL has a 2014 2.1 litre EFI 115HP Mercury fitted.
The fuel line fittings have changed from the usual Mercury ones.
I have not been able (so far) to locate the correct sized fitting here - my Mercury agent says he can't find it in the part catalogue.
Can anyone suggest a source, and part number if possible, for the correct size fuel tank fitting?
Otherwise, I think I will have to convert the original tank and hose to the older style.

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Peter Walter-Smith
Riverport of Goolwa, South Australia
2014 Bayliner Element XL
115HP Mercury EFI

Element auxiliary fuel tank - fittings update 24 Feb 2015 01:29 #10

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I have managed to answer my own questions via the Internet.
The fittings are not Mercury, but are from Attwood.
Part numbers are 8838TH6 - hose : 8838TM6 - tank & 8838US6 both.
West Marine also have generic items.
Thanks to Oakplank I have been able to get the fittings I needed sent over from Canada.
These fittings are not available in Australia at present.
Hopefully, this information might help someone else.
The following user(s) said Thank You: beckman2713, oakplank

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Peter Walter-Smith
Riverport of Goolwa, South Australia
2014 Bayliner Element XL
115HP Mercury EFI

Element auxiliary fuel tank - update 09 Apr 2015 05:11 #11

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I have attached a picture showing how easily the two large tanks fit in.
The second tank is a different brand, but over almost the same external size.
I haven't as yet installed a fuel line tap - I will during winter when I am feeling bored.
At present it is an easy option to simply remove the hose from one tank and clip it onto the other when needed.
You have to lift the seat cushion anyway, so this is not a real problem.
In retrospect, having regard to the excellent fuel economy of the Mercury 115HP EFI two 45 litre tanks (12 US gal) might be a bit of overkill, but I now have excellent range without any need to refuel.

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Peter Walter-Smith
Riverport of Goolwa, South Australia
2014 Bayliner Element XL
115HP Mercury EFI

Element auxiliary fuel tank - update 04 Jul 2015 12:30 #12

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greebo wrote: I have attached a picture showing how easily the two large tanks fit in.
The second tank is a different brand, but over almost the same external size.
I haven't as yet installed a fuel line tap - I will during winter when I am feeling bored.
At present it is an easy option to simply remove the hose from one tank and clip it onto the other when needed.
You have to lift the seat cushion anyway, so this is not a real problem.
In retrospect, having regard to the excellent fuel economy of the Mercury 115HP EFI two 45 litre tanks (12 US gal) might be a bit of overkill, but I now have excellent range without any need to refuel.


Overkill or not, I found out the hard way that 12 gallons isn't going to be sufficient. Ran out of fuel on the water while pulling a bunch of brats around on tubes. Fortunately another sympathetic boater saw my dilemma and gave me a tow back to my dock.

I've located the tank and fitting I need. I'd like to locate the crossover valve. Any idea where to find one?

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~Joe
2015 Element XL
Mercury 115

Element auxiliary fuel tank - update 04 Jul 2015 12:43 #13

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Amazon is where I got mine.

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2015 Bayliner 160 Element 75 HP, Smart tabs, Tach, Lowrance Elite-5 HDI.

Element auxiliary fuel tank 26 Oct 2015 22:29 #14

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We just bought an 2015 element xl. Thought I would try to put an extra 12 gallon tank in it. Order all the parts and got another 12 gallon Attwood tank. Tried every which way but I couldn't get the second tank to fit. My boat only has about 20 inches inside left to fill. What tank did you use that fit?

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Element auxiliary fuel tank 27 Oct 2015 09:49 #15

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This is the tank I fitted.
It fitted in well in my Element XL, I think it is of a very similar size to the Attwood tank.
There was not a lot of extra room, and I wouldn't like to have to lift the tanks out regularly to refuel, so I refuel (carefully) with the tank in place off the water, ensuring no static sparks.
I also secured the tank with straps to ensure it won't move.
I can't understand why another Attwood tank won't fit - this tank is almost exactly the same dimensions.

"Above Deck Fuel Tank
Scepter Fuel Tank 45litre Tall profile
Engineered as a marine fuel tank for use above deck
Manufactured from lightweight, high strength cross-liked polyethylene for durable performance
Manually vented fuel cap
Includes mechanical direct-sight guage with easy to read indicator
approx measurements Over All 582mm(L) x 364mm(W) x 346mm(H)"

45 litres is 12 gallons US.

With the fuel economy of the Mercury EFI I think you would probably find a 6 US gallon tank big enough.

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Peter Walter-Smith
Riverport of Goolwa, South Australia
2014 Bayliner Element XL
115HP Mercury EFI

Element auxiliary fuel tank 28 Oct 2015 02:17 #16

  • WellThatsLovely
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We just use regular gas cans and store them under the seats. Bit of a ghetto solution but it does the job... There's only been the odd time where we've had to refill while out so we usually don't even bring them unless we're going to be out ALL day.

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Element auxiliary fuel tank 25 Mar 2016 17:16 #17

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greebo wrote: This is the tank I fitted.
It fitted in well in my Element XL, I think it is of a very similar size to the Attwood tank.
There was not a lot of extra room, and I wouldn't like to have to lift the tanks out regularly to refuel, so I refuel (carefully) with the tank in place off the water, ensuring no static sparks.
I also secured the tank with straps to ensure it won't move.
I can't understand why another Attwood tank won't fit - this tank is almost exactly the same dimensions.

"Above Deck Fuel Tank
Scepter Fuel Tank 45litre Tall profile
Engineered as a marine fuel tank for use above deck
Manufactured from lightweight, high strength cross-liked polyethylene for durable performance
Manually vented fuel cap
Includes mechanical direct-sight guage with easy to read indicator
approx measurements Over All 582mm(L) x 364mm(W) x 346mm(H)"

45 litres is 12 gallons US.

With the fuel economy of the Mercury EFI I think you would probably find a 6 US gallon tank big enough.



Greebo, there is no way that you got those to fit. Based on those dimensions, the length converts to 22.9 inches. At best, I have 21.5 inches of room for a 2nd tank.
I'm going crazy trying to figure this out.

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~Joe
2015 Element XL
Mercury 115

Element auxiliary fuel tank 26 Mar 2016 20:24 #18

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WellThatsLovely wrote: We just use regular gas cans and store them under the seats. Bit of a ghetto solution but it does the job... There's only been the odd time where we've had to refill while out so we usually don't even bring them unless we're going to be out ALL day.


That's exactly what I do. When I'm back at the my dock, I top up my 12gal. tank with the portable ( the boat is always full and ready to go). The next time I need gas for my car, I top up the portable tank. I always keep the portable on board under a seat with the biggest funnel you have ever seen. The funnel opening is about 18" wide.

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Parry Sound, Ontario Canada
2014 Bayliner Element with Mercury 60 HP EFI Big Foot OB
12 foot aluminum fishing boat

Element auxiliary fuel tank 27 Mar 2016 00:21 #19

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Have a look at the photo above from 09 April last year. This tank does fit.

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Peter Walter-Smith
Riverport of Goolwa, South Australia
2014 Bayliner Element XL
115HP Mercury EFI

Element auxiliary fuel tank - fittings update 23 May 2016 02:03 #20

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Thank you for your help!

Can you list the fuel lines needed and 3 way valve. Is it 3/8? Does it need a primer bulb?

Thanks Again,

Chris

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2016 Bayliner Element XL 115hp Mercury Fourstroke

Element auxiliary fuel tank 23 May 2016 02:09 #21

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Jpray72 wrote: We just bought an 2015 element xl. Thought I would try to put an extra 12 gallon tank in it. Order all the parts and got another 12 gallon Attwood tank. Tried every which way but I couldn't get the second tank to fit. My boat only has about 20 inches inside left to fill. What tank did you use that fit?


Did you ever get the Attwood to fit? I got the sprayless connectors. wHat fuel line did you use. What crossover (2-way) valve did you get?

thanks,

Chris

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2016 Bayliner Element XL 115hp Mercury Fourstroke

Element auxiliary fuel tank 23 May 2016 19:23 #22

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Never got the 12 gallon attwood to fit. Bought a 6 gallon attwood it fits fine. I believe it was 5/16 feul line.

Attwood Universal Male and Female Sprayless Connector,
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Precision Brand M6S Micro Seal, Miniature All Stainless Worm Gear Hose Clamp, 5/16" - 7/8" (Pack of 10)
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3 of Dixon BN253 Brass Hose Fitting, Adapter, 3/8" NPTF Male x 5/16" Hose ID Barbed
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Element auxiliary fuel tank 26 May 2016 00:21 #23

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Thank you for providing the parts!

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2016 Bayliner Element XL 115hp Mercury Fourstroke

Element auxiliary fuel tank 02 Jun 2016 03:22 #24

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I was able to squeeze in a second 12 gallon tank. Is that safe? The two tanks are pushing against eachother and the end walls of the holding area. I really had to force the second tank in there. It is the smallest 12 gallon tank around. I've measured.
With heat expansion I feel this could be dangerous. Am I right?

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Element auxiliary fuel tank - how to fit 05 Jun 2016 03:29 #25

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I cant understand the problems Jay is having. I have just measured the space in my XL where the tanks are positioned and it is just short of 49 iches long. My tanks dont touch and there is nearly an inch clearance at both ends.
I can only assume that for some reason Bayliner have moved the bulkhead towards the stern a little bit.
I can't remember but I think I may have moved the fuel demand valve a little to give more clearance but this wouldn't explain the problems Jay has using exactly the same tanks as I used.
I can only suggest accurate measuring before you try this. If your space is too small the 6 gallon tank should fit and that should give enough fuel for a big days boating.

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Peter Walter-Smith
Riverport of Goolwa, South Australia
2014 Bayliner Element XL
115HP Mercury EFI
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