Fuel Tank Filler!!!!!

[samuelt]

HELP

I am completely fed up trying to get the fuel tank filler to work!!!

I have purchased Flexible hose, Ultra Flexible hose , not so flexible hose but every type of hose i try kinks when fitted to the tank and bent to go into an usable position. This is not helped by the fact that the rear of the cover inverts towards the tank!

My latest attempt was to do something like squelches were the filler comes out the top of the tank cover, really near the "fin" section but the 90 degree bend i purchases (even when cut down to minimize the projection from the tank hole, rubs against the cover.

I have the tank as far forward as the MEV brackets will let me and the cover as far back!!!!

My other option is to put it behind my lights about 10" back from the rear edge of the cover but again pipe bend!!!

Please I really need some advice!!! am i missing a simple trick!!!

[samuelt]

Also, do I have to use the float ?

[lukiez]

Forgive me, but what float are you refering to?

Btw what hoses are you trying to use? Is it suitable for fuel

I know it may mean buying yet another hose but it might be worth using the flexible fuel hose from car builder solutions, as demo'd you can bend it back on itself without kinking. The metal ribbing helps keep its shape, I have used it myself on a previous project with a awkward bend.

[samuelt]

The float is the ping pong ball that's is in a plastic insert inline of the metal section of the fuel filler, i am guessing this is what comes up when the tank is full and shuts of the pump.....

I have tried the ultra flexible hose from CBS, I purchased the 45 mm hose but it turns out it is only 42mm and after a lot of fighting with it (and cut hands from the wire) I contacted CBS who measured there role and admitted it was only 42mm so refunded the money.

Now i am trying a simple 45mm silicone 90 degree bend suitable for fuel with the filler cap section in the top and straight through the top of the fuel tank cover but i still do not know if i need the dam float! I can find nothing in the IVA manual that says i need it, i guess motor bikes do not have them?

[Toed64]

The float ball is to reduce fuel slopping up the filler neck when one is driving - it is not essential.

I've just mounted my filler through the top back corner of the horizontal surface of the GRP with the hope of being able to use the full tank capacity. I cut the steel neck and breather pipe back leaving a couple of inches for the my CBS flexible pipe to fit over, jubilee clipped tightly and did the awkward blind connections. The length of the flexible pipe is critical or it will kink.

I think if I had not drilled the top of the cover, I would fit high on the side as CKC did. I think they must have cut off the top 1/4 of the retaining lip on the filler neck to get the filler as high as possible.

it should fit fine...tight, but fine. The original Mazda breather pipe should be fine.

[samuelt]

I have now missed out the float and gone back to the 45mm Ultra flexible hose from CBS. I manged to pull more metal out and pull back the outside layer and force the inside layer over the pipe, this is the result:-







not to sure about the bends, What do you guys think?

[Toed64]

I thought about mounting the filler there, but I thought that the angle/kink in the filler neck would make filling, at best, very slow and perhaps almost impossible. So I opted to shorten the flexible pipe and mount on the top of the lid so that the petrol pump nozzle can go further into the filler neck and the petrol will at least drain down into the tank.

[John B]

Anybody have any pictures of their fillers mounted on the GRP, from the outside and the inside?

[samuelt]

I thought about outing the filler out through the top,but as the rear of the cover is inverted it induced another nasty bend at the bottom of the hose were it goes into the tank..

If I get a chance today were there is no rain, I will chuck the car on the trailer and visit the petrol station. My cover is now cut for the filler in this position and the 4 corner holding brackets fitted all have to do is fit the riv nuts to the brackets, so I hope it is ok!

[samuelt]

well Toad64 you were correct! £1.34 and i gave up! Glad i found out now and not on the way to the IVA, just so you know your tank has to be full at the time of inspection.

Looks like i am going to have to take a leaf out of Alex's book (anyone else noticed his 2nd Exocet is on Ebay?) and get a base box port tube to make my hole look like it was meant!!!

I have now cut a hole in the top of the GRP and the Ulta Flexi hose is protruding through it rready to have the filler neck fitted BUT the iva states that any spilt fuel should not go near the exhaust and well there is that chance, so i am going to have to brave the IVA man hoping that all is ok.

[Toed64]

Hmm... sorry to hear that. How about making the original hole big enough to get a hand through to allow easy access to attach the top of the filler hose and then make a purposeful looking inspection cover.

[Toed64]

Jul 7, 2012 20:52:18 GMT John B said:

Anybody have any pictures of their fillers mounted on the GRP, from the outside and the inside?

I'll have a go at posting pics soon.

[samuelt]

Just out of interest why would the full pump not allow fuel flow? Was it due to the bend restricting flow and the pump recognising this. I do not want to fall for the same problem again!

[red5]

The pump has a sensor in the spout that cuts off the supply if it detects fuel - which effectively stops tanks over flowing.

As your filler has restricted flow the fuel isnt clearing quick enough and is triggering the cut off in the spout.

like a kink in a hose pipe , to improve flow try to get as straight as possible