skidude88
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| posted on 15/10/07 at 05:39 PM |
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Plastic Fuel tank
How has anyone fitted a proper filler to a plastic fuel tank?
I know there was an issue with the leaky plastic fuel tanks...
I'm assuming that problem was to do with seals, rather than the problem I have where fuel is spewing out the top on Right hand turns &
Round-a-bouts after a fill up.
I gather there needs to be a valve somewhere in the setup too, to stop negative pressure in the tank (Found that the hard way - after pushing a mates
Striker up the A46, we discovered the fuel cap didn't wanna undo due to a iffy valve)
Tank fill hole is 40mm (dunno of this is standard?)
 
[Edited on 15/10/07 by skidude88]
Early MK de-Dion CBR1000 FJ-FP.
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Jon Ison
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| posted on 15/10/07 at 05:52 PM |
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I don't have any pics but i had a plastic filler cap that had a knob inside it, when you turned the knob it expanded and pulled itself into the
tank to make a seal, much better than the one you have in your pic.
It was bought from service station but guess halfrauds etc may do them, sorry my description is crap.
Edit to add, yup you will need a breather, preferably with a one way valve fitted.
[Edited on 15/10/07 by Jon Ison]
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Jon Ison
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| posted on 15/10/07 at 06:13 PM |
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Description
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Macbeast
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| posted on 15/10/07 at 09:57 PM |
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IMHO, I say again, IMHO, that is lethal!
What would happen if you turned upside down ? The plastic cap aint going to hold and you're going to get 5 gals next to your ear.
Those plastic caps are a fail at MOT.
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skidude88
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| posted on 15/10/07 at 10:35 PM |
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It doesn't seem to have been an MOT issue - The cars past 6 MOTs, 2 since I've had her.
I'm in no way defending the cap - Plastic tanks aren't that unusual, and I was hoping someone could shed light on a safer solution using
one.
Early MK de-Dion CBR1000 FJ-FP.
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Jon Ison
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| posted on 16/10/07 at 07:07 AM |
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quote:
Originally posted by Macbeast
IMHO, I say again, IMHO, that is lethal!
What would happen if you turned upside down ? The plastic cap aint going to hold and you're going to get 5 gals next to your ear.
Those plastic caps are a fail at MOT.
Unless things have changed then that cap in the pic was/is MOT friendly, it tightens that tight you could lift the car with it, it as also been tested
for inadvertent inversion and passed.
 
Rescued attachment smash.JPG
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DarrenW
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| posted on 16/10/07 at 07:47 AM |
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Green cap with vanes inside is a temp cap and should fail MOT iirc. Jon's example looks fine to me as it has a mechanical means of sealing
tightly.
Its not so much the losing fuel in a crash that scares me, but more that you are dropping fuel onto corners and roundabouts on a frequent basis!!
Please get it sorted for all our sakes. I bet bikers love you at this time of year.
Ive got plastic tank. It has a bit of 2" or so plastic pipe joined to the top. I then connect this to an external fuel filler neck / cap via
some petrol hose. Might be worth searching the catalogues to see if you can get a suitable inlet pipoe that will fit - possibly a mocal ali one with a
screw down flange that you may be able to fit with rubber gasket.
The orangey red vanes look like theyve been wearing away a bit - are they dropping bits of debris into the tank?
[Edited on 16/10/07 by DarrenW]
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skidude88
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| posted on 16/10/07 at 06:14 PM |
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Thanks - Sorted for the time being.
Unless you have 3 door Metro MK1, Ka or Fiesta 97>
 
with rear jaws
Early MK de-Dion CBR1000 FJ-FP.
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Macbeast
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| posted on 16/10/07 at 08:43 PM |
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Not yours Jon, I was on about the plastic temporary cap with the red vanes which is ok as a get you home.
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