Fuel tank filler location

 Hi guys

Im nearing the completion of my boat rebuild but have some small issues to resolve. The first being the placement of the fuel filler.

Normally the fuel filler for an under floor tank is fitted either on the transom or above the gunnels. I understand this avoids fuel spills inside the boat. However, do you think there would be a problem with filling the tank directly via a filler in the top of the tank?

All comments are welcome. 

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I did then the best that I knew how. When I knew better, I did better.


Posts: 3790

Date Joined: 01/02/10

I have read some reports of

Mon, 2019-04-15 09:00

I have read some reports of servos not allowing people to refuel while in the boat. The other thing that annoys me is dragging black fuel hoses across the gunnels

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Faulkner Family's picture

Posts: 14995

Date Joined: 11/03/08

 Biggest prob there is having

Mon, 2019-04-15 09:00

 Biggest prob there is having to get on the boat to do it. Also got to consider a chance of water seeping in through the cap if its at floor level. Then you got the breather issue

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RUSS and SANDY. A family that fishes together stays together

Robpado's picture

Posts: 49

Date Joined: 18/01/18

 My Bar Crusher has the

Mon, 2019-04-15 09:07

 My Bar Crusher has the filler ontop the tank, Between the seats but just forward....... I think its a great idea personally.... Never is there an issue of water ingress i fuel from gerrys at sea when on long trips. 

Never Had a drama filling up at any servo throughout WA, NT, QLD. Filled tanks, Filled Gerry cans in boat never been an issue ever.

As for getting in the boat to fill same again not an issue, Pull up step up the ladder grab the fuel hose and fill. 

 

It works for me and your always gunna get haters mostly one's that dont have it or dont like new ideas just my opinion. 

 

 

Robpado's picture

Posts: 49

Date Joined: 18/01/18

 My Bar Crusher has the

Mon, 2019-04-15 09:07

 My Bar Crusher has the filler ontop the tank, Between the seats but just forward....... I think its a great idea personally.... Never is there an issue of water ingress i fuel from gerrys at sea when on long trips. 

Never Had a drama filling up at any servo throughout WA, NT, QLD. Filled tanks, Filled Gerry cans in boat never been an issue ever.

As for getting in the boat to fill same again not an issue, Pull up step up the ladder grab the fuel hose and fill. 

 

It works for me and your always gunna get haters mostly one's that dont have it or dont like new ideas just my opinion. 

 

 

sea-kem's picture

Posts: 11544

Date Joined: 30/11/09

Dept of transport info sheet

Mon, 2019-04-15 09:12

Dept of transport info sheet on tank construction states that there's no possibillity of fuel spillage or overflow from the tank into below deck spaces. 

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Love the West!

bradz's picture

Posts: 603

Date Joined: 29/10/07

Info Sheet

Mon, 2019-04-15 09:16

Hi Sea-kem

Any chance you can provide a link to that info sheet.

Cheers 

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I did then the best that I knew how. When I knew better, I did better.

sea-kem's picture

Posts: 11544

Date Joined: 30/11/09

 Have been trying to hunt it

Mon, 2019-04-15 12:12

 Have been trying to hunt it down online but looks like the marine gov site has gone. I've only got a hard copy here, it's only 4 pages.

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Love the West!

bradz's picture

Posts: 603

Date Joined: 29/10/07

Tank being level

Mon, 2019-04-15 09:12

The only problem I can think of is if the boat is not level it may result in not being able to fill completely or eve having have fuel slop out of the top.

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I did then the best that I knew how. When I knew better, I did better.

squidvicious1's picture

Posts: 644

Date Joined: 22/07/10

Most boarts are set up on an

Mon, 2019-04-15 09:49

Most boarts are set up on an angle on the trailer , so you're probably only going to get 90% ish full.

squidvicious1's picture

Posts: 644

Date Joined: 22/07/10

Most boarts are set up on an

Mon, 2019-04-15 09:49

Most boarts are set up on an angle on the trailer , so you're probably only going to get 90% ish full.

pelagicyachts's picture

Posts: 879

Date Joined: 23/02/11

Have both - gunnel and tank

Mon, 2019-04-15 13:00

Have both - gunnel and tank fill cap - main reason is there is no better or more reliable fuel gauge than a notched piece of dowel accessed through the tank fill cap...

scottnofish's picture

Posts: 1564

Date Joined: 28/08/07

the filler is normally

Mon, 2019-04-15 13:02

 outside so you don't get a build up of fuel vapor inside the boat while filling .

carnarvonite's picture

Posts: 7743

Date Joined: 24/07/07

Got it

Mon, 2019-04-15 16:57

 You have got it spot on, the gas coming off the fuel is heavier than air and will settle in the bottom of the boat that is the reason why  they insist on the filler cap on the outside of the gunnel

Posts: 5135

Date Joined: 17/06/10

Right on

Tue, 2019-04-16 14:33

Petrol fumes in confined spaces not a good thing to have in a boat 

Lavs's picture

Posts: 138

Date Joined: 30/04/12

Mine is located in the

Mon, 2019-04-15 20:10

Mine is located in the outboard well, forward of the transom. Works for me, but does mean the boat has to be quite far forward at the bowser for the hose to reach, which is sometimes a pain in smaller petrol stations. 

What not to do: Some genious decided to route the filler hose right through one of my under floor kill tanks which sits behind the fuel tank. Don’t do this. The tank has a constant fuel odour and means the kill tank is useless. 

Posts: 17

Date Joined: 07/03/19

Filler in the floor...

Tue, 2019-04-16 17:32

 I'm a bra-crusher person too.

I use a siphon to fill up from plastic jerry-cans.  THen whatever is left gets poured in with a funnel.

Very easy and no mess.

I measured the depth of my tank at 200mm... then removed the fuel sensor and discovered it was 175mm.  No wonder the gauge was useless.

 

I obtained a 200mm sensor and integrated it in to my Lowrance & Simrad instruments.  Its fairly easy to level the boat on the trailer before filling and 20 litres = 20% on the fuel gauge