Extra Fuel on FSH

[FSH 210 Sport]

First and foremost, many thanks to @Liveto99 for his help with the Moeller 22 gallon fuel tank .

I was looking at extending my fuel range, or at least getting some extra cushion for some big lakes who’s services are a bit far in between. @Liveto99 had posted about the purchase of the Moeller 22 gallon above deck fuel tank which I believe was originally designed for the boston whaler montauk. This Moeller tank fits perfectly under the helm seat of my 210 FSH sport. The only issue is that the recess for the OEM cooler leaves the underside of the gas tank unsupported.

My friend who has many years in the marine industry suggested using a piece of closed cell concrete insulation foam as a filler piece that could be easily shaped. The foam itself is rated at 25 PSI strength, more than enough to support the tank and 132 pounds of fuel.



I bought a piece that was 1.5“ thick, cut it to fit the recess, my friend used a belt sander to make it conform to the slanted ice chest depression. He suggested a put a layer of flex seal on the foam to seal the outer layer of the foam and then it would match the deck also.

I needed to get the fuel from the on deck tank to the main tank of the boat. I bought a Summit branded 97gph fuel pump and fitted that with some double sided shut off quick disconnects to make it easy and spill free.



The pump and hoses all fit into a rubber made cereal container to keep it clean and secure. The pump transferred 12 gallons of fuel in 12 minutes. Not what the pump is rated at because that is with 3/8” fittings and my quick disconnects are 1/4”. Still, that means with 22 gallons of fuel it will take 22 minutes to transfer the fuel over. So probably a 25 minute stop to refill the main tank.. good time for a break anyway!

The OEM cooler will fit in between the Moeller tank and the transom. I may just use a door mat for the cooler to sit on to give it some extra purchase.

If y’all need any info on the parts and pieces let me know!

 

[Julian]

First and foremost, many thanks to @Liveto99 for his help with the Moeller 22 gallon fuel tank .

I was looking at extending my fuel range, or at least getting some extra cushion for some big lakes who’s services are a bit far in between. @Liveto99 had posted about the purchase of the Moeller 22 gallon above deck fuel tank which I believe was originally designed for the boston whaler montauk. This Moeller tank fits perfectly under the helm seat of my 210 FSH sport. The only issue is that the recess for the OEM cooler leaves the underside of the gas tank unsupported.

My friend who has many years in the marine industry suggested using a piece of closed cell concrete insulation foam as a filler piece that could be easily shaped. The foam itself is rated at 25 PSI strength, more than enough to support the tank and 132 pounds of fuel.

View attachment 162810

I bought a piece that was 1.5“ thick, cut it to fit the recess, my friend used a belt sander to make it conform to the slanted ice chest depression. He suggested a put a layer of flex seal on the foam to seal the outer layer of the foam and then it would match the deck also.

I needed to get the fuel from the on deck tank to the main tank of the boat. I bought a Summit branded 97gph fuel pump and fitted that with some double sided shut off quick disconnects to make it easy and spill free.

View attachment 162811View attachment 162812

The pump and hoses all fit into a rubber made cereal container to keep it clean and secure. The pump transferred 12 gallons of fuel in 12 minutes. Not what the pump is rated at because that is with 3/8” fittings and my quick disconnects are 1/4”. Still, that means with 22 gallons of fuel it will take 22 minutes to transfer the fuel over. So probably a 25 minute stop to refill the main tank.. good time for a break anyway!

The OEM cooler will fit in between the Moeller tank and the transom. I may just use a door mat for the cooler to sit on to give it some extra purchase.

If y’all need any info on the parts and pieces let me know!

Very cool. Why would you have to be stopped once the pump is running couldn't you keep going?

 

[Jim_in_Delaware]

That's a nice fit.

I have often wondered which tanks might fit between the posts. 22 gallons is a very nice cushion.

Can you still open the hatch and check the engine with the tank full of gas or do you need to empty the tank first?

Jim

 

[Dixemon]

I was researching fuel transfer pumps recently. It was either 300$ units or 20$ units that wouldn't pump 2' off the ground. Can you give a little more detail on that 12v pump you have there. I like that setup, might be something I consider for some longer runs offshore.

 

[FSH 210 Sport]

I was researching fuel transfer pumps recently. It was either 300$ units or 20$ units that wouldn't pump 2' off the ground. Can you give a little more detail on that 12v pump you have there. I like that setup, might be something I consider for some longer runs offshore.

This is the pump I bought:

https://www.summitracing.com/parts/SUM-G3136-1

Not the cheapest pump but I wanted something high flow and something good that would last. This pump also has an aluminum housing so it will be a little more resistant to corrosion.

The quick disconnects are from a small business I had and are not likely to be available in small quantities…

 

[FSH 210 Sport]

That's a nice fit.

I have often wondered which tanks might fit between the posts. 22 gallons is a very nice cushion.

Can you still open the hatch and check the engine with the tank full of gas or do you need to empty the tank first?

Jim

You could probably open the hatch but it would be a bit heavy. The tank when full would weigh around 150#.

The plan is to only fill that tank when I think I am going to need it, and then as soon as the 22 gallons will fit into the main tank I will transfer the fuel at that time.

 

[FSH 210 Sport]

Very cool. Why would you have to be stopped once the pump is running couldn't you keep going?

I suppose you could just go slow but I’d rather stop.

 

[Dixemon]

Im surprised i didnt run into that pump during my research. Anything Gas is a PITA to find that has any real output, unless you want to pay for a huge transfer pump. Thanks for sharing

 

[FSH 210 Sport]

Post Lake Powell trip update.

The extra fuel tank worked great on my trip. I used it to add fuel to my boat as well as adding fuel to my friends wave runner on some long trips. The OEM ice chest fits nicely between the tank and the transom.

 

[Liveto99]

I just slid the fuel tank out of the way to open my hatch. that knock off yeti cooler that we bought a while ago from Amazon fits between the fuel tank on the back also. I would not transfer fuel well underway just in case of a wave or some thing getting water into your fuel tank with the hatch on the side. In a pinch you could just siphon the gas.
I think the fuel pump will work great if anyone finds quick disconnects let me know I’d be all over that.
I did run my boat down to almost no gas there is a little bit of a reserve in there I ran about 150 miles. The alarm is constant and annoying.
@FSH 210 Sport glad it worked well, thanks for the tag.

 

[FSH 210 Sport]

I just slid the fuel tank out of the way to open my hatch. that knock off yeti cooler that we bought a while ago from Amazon fits between the fuel tank on the back also. I would not transfer fuel well underway just in case of a wave or some thing getting water into your fuel tank with the hatch on the side. In a pinch you could just siphon the gas.
I think the fuel pump will work great if anyone finds quick disconnects let me know I’d be all over that.
I did run my boat down to almost no gas there is a little bit of a reserve in there I ran about 150 miles. The alarm is constant and annoying.
@FSH 210 Sport glad it worked well, thanks for the tag.

@Liveto99 @MilesPrower posted this attwood catalogue this morning and I found some quick disconnects that should work for your tank. The ones I used were left overs from a small business I had making after market gas tanks.

Attwood 2023 Catalog

This interactive publication is created with FlippingBook, a service for streaming PDFs online. No download, no waiting. Open and start reading right away!

www.delzer.com

 

[FSH 210 Sport]

Very cool. Why would you have to be stopped once the pump is running couldn't you keep going?

You probably keep going if you were to install a quick disconnect accessible from the deck that went right into the fuel fill line.

 

[Liveto99]

@Liveto99 @MilesPrower posted this attwood catalogue this morning and I found some quick disconnects that should work for your tank. The ones I used were left overs from a small business I had making after market gas tanks.


View attachment 166389

Attwood 2023 Catalog

This interactive publication is created with FlippingBook, a service for streaming PDFs online. No download, no waiting. Open and start reading right away!

www.delzer.com

Ty

 

[bubbasuwannee]

I've read your post before about the spare fuel setup. Been contemplating something like this if I decide to start reaching out to further distances. How well has everything held up so far?

 

[FSH 210 Sport]

Everything worked fine for the week long trip to lake Powell two years ago. The empty tank is light so putting it in or off the boat is easy. The fuel pump will transfer all of the fuel in 20 minutes.

If everything goes according to plan this summer I’ll be using it again this summer

if you need any assistance sourcing any of the parts let me know !

 

[bubbasuwannee]

Everything worked fine for the week long trip to lake Powell two years ago. The empty tank is light so putting it in or off the boat is easy. The fuel pump will transfer all of the fuel in 20 minutes.

If everything goes according to plan this summer I’ll be using it again this summer

if you need any assistance sourcing any of the parts let me know !

main reason I’m thinking of this is if the wife and I decide to do a Bimini trip at some point or if wanting to go offshore. Definitely will let you know. How much did everything set you back? Anything you’d want to change?

 

[FSH 210 Sport]

main reason I’m thinking of this is if the wife and I decide to do a Bimini trip at some point or if wanting to go offshore. Definitely will let you know. How much did everything set you back? Anything you’d want to change?

Looks like the fuel tank is $394

22 Gallon Above Deck Fuel Tank | West Marine

Check out our 22 Gallon Above Deck Fuel Tank and more from West Marine!

www.westmarine.com

I can’t remember how much the fuel pump was , maybe $100. Perhaps $25 for the straps. I had the quick disconnects and the fuel line. So less than $600.

Nothing I would change. I was thinking about trying to intercept the main fill line so I could put a quick disconnect there to keep all of the fuel filling inside the boat. But I decided to stick with putting fill line into the main fill. I may put a switch to turn the fuel pump on and off, right now it’s just big alligator clamps.

 

[dwakeman]

Thanks for this info. It provided me with a few good ideas. I'm planning on using a 54-gallon fuel bladder and putting it in the starboard rear seat storage compartment on my 2024 Yamaha 275SD. Like you, I will use a quick disconnect (I am going to try this one) so I can pull it out when it is not needed. I'll then permanently mount a 12V fuel transfer pump in the engine compartment. I'll let you know next spring if this all works out.

 

[zackmorris]

Thanks for this info. It provided me with a few good ideas. I'm planning on using a 54-gallon fuel bladder and putting it in the starboard rear seat storage compartment on my 2024 Yamaha 255XD. Like you, I will use a quick disconnect (I am going to try this one) so I can pull it out when it is not needed. As the XD is a Wake boat that also has a FatSac in that same compartment that fills with water for surfing, I'm pretty confident the weight won't be an issue. I'll then permanently mount a 12V fuel transfer pump in the engine compartment, and I plan to use one of the provided aux switches in the helm to turn it on/off. I'll let you know next spring if this all works out.

I wonder what the durability is like on that bladder? Seems very cheap compared to the other commercial solutions like ATI: 50 Gallon (200 Liter) ATL FueLocker Fuel Bladder - P/N 106050

 

[FSH 210 Sport]

First of all…. 50 gallons of gasoline is 300#, 54 gallons is 324#. If you put that much weigh on one side your boat is going to list A LOT. Try standing on one side / corner of your boat and see how much it lists. This list will also dramatically affect how your boat handles, meaning if all that weight in on the starboard side your boat will pull to the port side. I highly recommend that you use a container, like a 150 qt ice / 37 gallons chest filled with water which is 313# and have that in your boat to see how that weight affects the handling of your boat, so you are going to want to have it centered if at all possible. Cut a piece of cardboard with the footprint of the fuel bladder and see how that is going to fit in your boat too. Also check your fuel consumption with that weight on the boat to see how that is going to be affected.

Secondly, these bladders are supposed to be used on deck, not down in a hold, although I do see one in an on deck storage locker. Putting fuel containers below deck is very risky. So that leaves finding a 30”x30” footprint for the bladder. On a 25’ FSH model I’d think you could put it on top of the folded down rear bench seat, which would put it close to the fuel fill of the boats oem fuel tank, or maybe right in front of the CC seat in the bow.

And for sure you want to have quick disconnects that are A-compatible with gasoline, and B-have built in shut off valves. Looks like ATL sells the rated fuel line. Polypropylene fuel line is a good choice as it will not get stiff over time and allows you to roll it up and stow it easy.

I like the 50 gallon fuel locker, that is literally a doubling of the fuel capacity on my boat, so a 100% increase, it would be a 45% increase of fuel on the 255 FSH and a 66% increase in fuel capacity on the 255XD. On my boat that would mean running the tank to zero to get it all to fit, but, I’d probably just run the stock tank down half way then transfer half, or maybe even less to start getting that fuel into the main tank asap to get the weight out of the front of the boat.

It is a neat fuel storage idea as it will just roll up and get stowed when its empty which is nice, as opposed to fuel cans which will always be there full or not.

I have to ask, where is it that you guys are going that you would need to take 50 gallons / 300# of fuel ?