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Fuel filler location???
Mark G - 15/3/09 at 10:06 AM

I can't decide where to put my fuel filler cap. Should I put it on the top of the boot or in the back panel?

My thoughts are that if I put it in the back panel then it'll look very busy on the os of the car as the fog will be below it. Also I'm wondering if the angle in the pipe will make it tricky to fill.

Where would you put yours?

bigrich - 15/3/09 at 10:09 AM

Rear panel fillers can br tricky to fill with fuel, I now have a top filler with a straight fuel hose and is much better AIMHO

Shamrock GS - 15/3/09 at 10:10 AM

I put mine on the lid as I couldn't get enough space to connect the filler, bendy pipe and tank inlet if it was at the back. Works fine and doesn't clutter the rear view.

Gary

Mark Allanson - 15/3/09 at 10:49 AM

quote:
Originally posted by bigrich
Rear panel fillers can br tricky to fill with fuel, I now have a top filler with a straight fuel hose and is much better AIMHO


Tricky - TRICKY The high priest of understatement!!!

I made mine with the same curve as a filler nozzle, so the tip would look straight into the tank so filling would be easy - BUT OH NO..

It is a race to fill my 6 gallon tank before the 5 min cut off point stops the flow. I go in to pay with tears of frustration running down my cheeks.

Do yourself a BIG favour, put the filler on the top

eznfrank - 15/3/09 at 11:03 AM

anyone done the rear panel but on the side of the car? Should get a bit more room for the bend then?

tomgregory2000 - 15/3/09 at 12:06 PM

Mine is on the back and its a pain to fill but my vote has gone on rear panel, it looks so much better

iiyama - 15/3/09 at 12:19 PM

Mines on the top of the scuttle!

Snuggs - 15/3/09 at 12:45 PM

quote:
Originally posted by eznfrank
anyone done the rear panel but on the side of the car? Should get a bit more room for the bend then?




Yep, but got so pi$$ed off with it that I moved the filler to the boot lid

wilkingj - 15/3/09 at 02:02 PM

Top lid... DONT put in in the side, unless you like paying to wash the forecourt in Unleaded

OR... Dont have an external filler. Put it inside the boot area. Only its a pain having to open the rear panel every time you fill up. (almost every time I take the car out)

Just my 2 reils worth.

coozer - 15/3/09 at 03:53 PM

Put it on the boot lid. Mine was on the back first and it takes ages to get any fuel in and it spits back and runs down the panel

Mines on the top now and still have to fanny on filling it but at least its not running or spitting back.

Steve

Mark G - 15/3/09 at 08:25 PM

Cheers all, I figured top would be better but wanted to check first. No I just need to make a boot lid of some sort.

Ninehigh - 15/3/09 at 10:19 PM

Be tricky and put it in the engine bay

I remember an article on the 205 T16, was mid engined so the filler was under the bonnet, apparently lots of people would stop the guy from "spraying petrol on a hot engine"

RK - 16/3/09 at 02:22 AM

Boot lid is good advice that I plan to follow. Nice one about "how hard can it be" too. I used to say that. Now I know: VERY

[Edited on 16/3/09 by RK]

sebastiaan - 16/3/09 at 06:34 PM

I've just put mine in the rear panel. It looks so much better then on top, and i'm planning a softtop, which would make filling up an "inside job"....

Might have to work out some form of filler neck breather now that i've read this. Has anyone got a properly functioning rear panel filler, or are they all a bit duff?

C10CoryM - 17/3/09 at 12:27 AM

If you plan on rain gear you best put it on the rear. Fuel filler inside the cockpit is probably not wise .

FYI you can put the filler anywhere as long as it is properly vented. When you are pumping fuel into the tank, the air has to get out. If it can't it builds pressure and *chunk* the fuel pump shuts off. All you need to do is have a vent tube go up to the filler neck above the end of the nozzle and you will be fine.

Cheers.
Cory

C10CoryM - 17/3/09 at 02:22 AM

OK, I have a little more time now to clarify.
Pumping fuel into a sealed container means that the air needs to get out or you will either: trip the pressure valve on the pump, or compress the air and get a face full of fuel when it de-compresses.
In the fuel pump nozzle there is a little tube that goes to a pressure valve in the pump. The valve will shut off when it sees pressure. Usually the pressure comes when fuel covers the end of the nozzle and it trys to pump fuel back up the valve tube. It also happens when your fuel tank isn't vented right and air pressure (air trying to get out from fuel going in) goes up the valve tube.

So, the volume of fuel going in needs to have the same volume of air coming out or you will build pressure. See attached doodle for the normal way of doing this.
The doodle on the left is the way that almost all current production vehicles are.

Only other thing of note in fuel tank design is that air also needs to get into the the tank when your fuel pump is drawing fuel out. If it's not able to pull air in through a vented cap or a vent, you can lose fuel volume to the point the car shuts off.

I hope this helps clear things up. There is no reason you can't put a proper filler neck in the rear or side panels and still be able to fuel up quickly and safely.
Cheers,
Cory Rescued attachment fill-neck-02-md.jpg
Rescued attachment fill-neck-02-md.jpg