Converting Jockey seat into a Fuel tank

Chris · 13 February 2008, 15:03

I am interested to see if its possible to get a fuel bladder that will fit into the Leeway single jockey seat I have on Danny Boy.

I have done som rough calcs and I reckon the volume inside the Jockey is about 65 litres of space that I currently dont use.

I want the bladder to be installed so that thefilling cap is under the seat cushion then I want to have a hose that can simply be plugges directly into the fuel filter on the transom using some kind of quick release valve.

Any ideas...

I guess firstly I need to find a suitable sized / shaped bladder.

9D280 · 13 February 2008, 15:46

Is a bladder such a good idea? I'll bet there's lots of sharp things in there that will cause a nice wee leak or two. Why not look at the Plastimo / tempo plastic tanks, then just run a fuel hose with your favourite quick connector to the fuel filter? http://www.plastimo.com/catalogue/in...ngID=1&catid=7 or http://www.tempoproducts.com/2004/bd_fuel_tanks1.html as a couple of quick examples

The rigid tanks will probably survive a bit better in there..... and you can also fit fuel guages.

jyasaki · 13 February 2008, 16:44

That, or have a fiberglass or aluminum guy custom build a rigid tank.

jky

matt h · 13 February 2008, 19:03

here's a money saving idea,

what about just pouring the petrol into the jockey, and then stick a hose pipe into it direct into the engine, and to stop it slopping around,chuck in bits of old foam!! (your boats not faster than mine)

Nos4r2 · 13 February 2008, 19:33

Oi, stop chucking matches at it Matt

Pete7 · 13 February 2008, 19:38

Quote:

Originally Posted by matt h

(your boats is not faster than mine)

Oh yes it is

I'll have a tenner on the Viper, race, race, race

Nos4r2 · 13 February 2008, 19:49

Quote:

Originally Posted by 9D280

Is a bladder such a good idea? I'll bet there's lots of sharp things in there that will cause a nice wee leak or two. Why not look at the Plastimo / tempo plastic tanks, then just run a fuel hose with your favourite quick connector to the fuel filter? http://www.plastimo.com/catalogue/in...ngID=1&catid=7 or http://www.tempoproducts.com/2004/bd_fuel_tanks1.html as a couple of quick examples

The rigid tanks will probably survive a bit better in there..... and you can also fit fuel guages.

You'd be surprised how tough bladders are.

Nos4r2 · 13 February 2008, 19:54

Quote:

Originally Posted by Pete7

Oh yes it is

I'll have a tenner on the Viper, race, race, race

I wouldn't bet on the outcome Pete, Matt will just pick the roughest course possible then nail into it hoping he doesn't stuff it...

prairie tuber · 13 February 2008, 20:44

I can't see any issues with using a bladder under the jockey so long as:

1. The inside of the jockey is smooth without any burrs or sharp projections.

2. The jockey frame is a fairly open design with plenty of ventilation on all 4 sides both near the lower and upper portions of the sides. Be sure that liquid fuel cannot pool at the inside bottom of the jockey frame (can drain onto the open deck) and that vapour can't be trapped under the seat. The bladder would be much safer than a plastic or metal gas can.

Chris · 13 February 2008, 21:56

Quote:

Originally Posted by Pete7

Oh yes it is

I'll have a tenner on the Viper, race, race, race

http://youtube.com/watch?v=BjxHal1jsco

Heh heh, the proof is in the video, about 4.30mins into this clip

Chris · 13 February 2008, 22:06

I have spoken to a local fabricator who reckons he can do me an aluminium tank for around £100.

I have taken some measurements and worked out the design and according to my maths I should get about 36 litres capacity.

The tank will be about half and inch smaller all round than the inside of the seat so that I can stick foam in between the tank and the base to provide plenty of support.

Chris · 13 February 2008, 22:15

Can anyone recommend somewhere to get holf of the following stuff

Fuel cap (with thumb screw vent)
aluminium threaded collar or Fuel neck to suit cap above
Fuel pickup and plate for attaching to tank.

Chris

Nos4r2 · 13 February 2008, 22:32

Have a look at this:-

Filler caps and stuff

Not sure how it'd stand up to salt, but worth contacting them to ask. You could add a separate breather to the tank fairly easily.

Chris · 13 February 2008, 23:12

Quote:

Originally Posted by Nos4r2

Have a look at this:-

Filler caps and stuff

Not sure how it'd stand up to salt, but worth contacting them to ask. You could add a separate breather to the tank fairly easily.

Yeah not easy to find what I am after Ideally I want a vented cap so that I can close the vent easily.

Nos4r2 · 13 February 2008, 23:40

A plastic lawnmower fuel tap like this

in a breather hose would do that.

Pete7 · 14 February 2008, 15:09

Chris, sounds like you need the filler and breather off the top of a tempo fuel tank which would also allow a fuel gauge to be fitted. Have a look at this picture to see what I mean.

http://rib.net/forum/showthread.php?t=23205

Pete

matt h · 14 February 2008, 15:59

cut off your existing Jockey seat and sikaflex a jerry can to the deck then stick a seat on top of it!!

matt h · 14 February 2008, 16:06

, Part Number FT1-K at outhill.; Fuel filler kit,

Chris · 14 February 2008, 16:30

Quote:

Originally Posted by Pete7

Chris, sounds like you need the filler and breather off the top of a tempo fuel tank which would also allow a fuel gauge to be fitted. Have a look at this picture to see what I mean.

http://rib.net/forum/showthread.php?t=23205

Pete

I cant see any pics pete?

matt h · 14 February 2008, 16:35

i cant expand the pic have a look at Products, then NEW PRODUCTS, its the left hand download,