Overflowing fuel wtf - DON'T fill up on a hot day...
13-07-2005, 06:02 PM
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Overflowing fuel wtf - DON'T fill up on a hot day...
Filled up this morning, drove 17 miles, parked the car in full sun (no choice 
).
At lunch time, a colleague comes running to me to say there is a strong smell of petrol near the car and it appears to be leaking
Had a look, and fuel was pouring out of the filler cap, as I removed the cap (slowly), more fuel came out. The filler neck was full to the brim...
Drove the car to a shady area on a slight incline (nose down), had a look and the filler neck appeared empty
However, come 6pm, the car is dripping fuel again, filler neck up to the brim, got home and the filler neck is now empty, but I can see fuel at the bottom...
What is going on ? Is this normal ? Never seen it before.
We have one of these flexicap things, as we have not been able to find a proper one, so maybe that's why it was overflowing, would a proper fuel cap resolve this
PS: If you have a fuel cap for an E reg 2wd Sapph, PM me now
).At lunch time, a colleague comes running to me to say there is a strong smell of petrol near the car and it appears to be leaking
Had a look, and fuel was pouring out of the filler cap, as I removed the cap (slowly), more fuel came out. The filler neck was full to the brim...
Drove the car to a shady area on a slight incline (nose down), had a look and the filler neck appeared empty
However, come 6pm, the car is dripping fuel again, filler neck up to the brim, got home and the filler neck is now empty, but I can see fuel at the bottom...
What is going on ? Is this normal ? Never seen it before.
We have one of these flexicap things, as we have not been able to find a proper one, so maybe that's why it was overflowing, would a proper fuel cap resolve this
PS: If you have a fuel cap for an E reg 2wd Sapph, PM me now
13-07-2005, 06:09 PM
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just done a course all about fuel mate, when you filled it up did you stop when the fuel nozzle stopped itself like when it snaps shut? if you kept going that will be why it leaked the reason the nozzle is a certain length is to leave space for the fuel expansion in the heat mate 
13-07-2005, 06:13 PM
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mk2rstaff I only EVER try and put more than the nozzle will allow if I am going on a long drive, otherwise, I stop as soon as the pump says so
NutsRusIf we had a proper fuel cap which seals properly, where would the fuel go
NutsRusIf we had a proper fuel cap which seals properly, where would the fuel go
13-07-2005, 06:20 PM
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Greg, would the correct fuel cap not stop the fuel from escaping when it is trying to expand? 
Aint never heard of fuel doing that tho, only this morning I filled up the car as far as it would go and then some more, always do it once a week as I do so many miles! Trust me, there aint no room in my tank for it to expand, and it sits in the sun all day!
Aint never heard of fuel doing that tho, only this morning I filled up the car as far as it would go and then some more, always do it once a week as I do so many miles! Trust me, there aint no room in my tank for it to expand, and it sits in the sun all day!
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13-07-2005, 07:19 PM
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Originally Posted by Dan
Greg, would the correct fuel cap not stop the fuel from escaping when it is trying to expand?
I am well confused.
13-07-2005, 07:23 PM
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Originally Posted by NUTS RuS
It then goes up (or down) the breather pipe and back round and down into the tank in a continous cycle if a proper cap is fitted.
Tony does it again! 
lolSo I reckon you need a proper filler cap Greg
13-07-2005, 09:05 PM
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Originally Posted by Dan
Originally Posted by NUTS RuS
It then goes up (or down) the breather pipe and back round and down into the tank in a continous cycle if a proper cap is fitted.
Tony does it again! lolSo I reckon you need a proper filler cap Greg
14-07-2005, 09:19 AM
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Popeye, MrsFrog and James...
Near the tip of the nozzle is a small hole, and a small pipe leads back from the hole into the handle. Suction is applied to this pipe using a venturi. When the tank is not full, air is being drawn through the hole by the vacuum, and the air flows easily. When gasoline in the tank rises high enough to block the hole, a mechanical linkage in the handle senses the change in suction and flips the nozzle off.
Here's a way to think about it -- you've got a small pipe with suction being applied at one end and air flowing through the pipe easily. If you stick the free end of the pipe in a glass of water, much more suction is needed, so a vacuum develops in the middle of the pipe. That vacuum can be used to flip a lever that cuts off the nozzle.
The next time you fill up your tank, look for this hole either on the inside or the outside of the tip.
Near the tip of the nozzle is a small hole, and a small pipe leads back from the hole into the handle. Suction is applied to this pipe using a venturi. When the tank is not full, air is being drawn through the hole by the vacuum, and the air flows easily. When gasoline in the tank rises high enough to block the hole, a mechanical linkage in the handle senses the change in suction and flips the nozzle off.
Here's a way to think about it -- you've got a small pipe with suction being applied at one end and air flowing through the pipe easily. If you stick the free end of the pipe in a glass of water, much more suction is needed, so a vacuum develops in the middle of the pipe. That vacuum can be used to flip a lever that cuts off the nozzle.
The next time you fill up your tank, look for this hole either on the inside or the outside of the tip.
14-07-2005, 10:06 AM
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the standard fuel cap keeps the tank pressurised.
I doubt the flexi cap is doing that.
Be careful coz u can run into fuel starvation problems if there's not enough pressure.
I doubt the flexi cap is doing that.
Be careful coz u can run into fuel starvation problems if there's not enough pressure.
14-07-2005, 10:50 AM
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Originally Posted by frog
Popeye, MrsFrog and James...
Near the tip of the nozzle is a small hole, and a small pipe leads back from the hole into the handle. Suction is applied to this pipe using a venturi. When the tank is not full, air is being drawn through the hole by the vacuum, and the air flows easily. When gasoline in the tank rises high enough to block the hole, a mechanical linkage in the handle senses the change in suction and flips the nozzle off.
Here's a way to think about it -- you've got a small pipe with suction being applied at one end and air flowing through the pipe easily. If you stick the free end of the pipe in a glass of water, much more suction is needed, so a vacuum develops in the middle of the pipe. That vacuum can be used to flip a lever that cuts off the nozzle.
The next time you fill up your tank, look for this hole either on the inside or the outside of the tip.
Near the tip of the nozzle is a small hole, and a small pipe leads back from the hole into the handle. Suction is applied to this pipe using a venturi. When the tank is not full, air is being drawn through the hole by the vacuum, and the air flows easily. When gasoline in the tank rises high enough to block the hole, a mechanical linkage in the handle senses the change in suction and flips the nozzle off.
Here's a way to think about it -- you've got a small pipe with suction being applied at one end and air flowing through the pipe easily. If you stick the free end of the pipe in a glass of water, much more suction is needed, so a vacuum develops in the middle of the pipe. That vacuum can be used to flip a lever that cuts off the nozzle.
The next time you fill up your tank, look for this hole either on the inside or the outside of the tip.
I love it when you talk dirty hun!!
Can you also do it in french now??
14-07-2005, 10:56 AM
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I made this mistake on Saturday at Combe!
Opened the jerry can full of fuel, and the fuckin thing exploded all down the side of the car
Monsieur Frod - it would appear I have a 2wd cap sitting here from my old saff, but you'd need the key as well wouldn't you
Opened the jerry can full of fuel, and the fuckin thing exploded all down the side of the car
Monsieur Frod - it would appear I have a 2wd cap sitting here from my old saff, but you'd need the key as well wouldn't you
14-07-2005, 11:05 AM
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Rich, do you have to lock it with the key for it to stay in place ?
It won't be any less secure than the flexi thing we have at the moment
Do you know if ford can re-cut the keys
It won't be any less secure than the flexi thing we have at the moment
Do you know if ford can re-cut the keys
14-07-2005, 11:31 AM
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the petrol cap in most cases should have an expansion hole in it unless you are running a pressure system. the fuel pressure will be gained from the pump inside the tank to the engine. the reason why the nozzle is that length is to leave room inside the neck of the tank to allow for the fuel to expand and contract, as the air will compress easier than the liquid, as in the jerrycan incident above, i have seen so many people do that but be stood in front of it and covering themselves in it, a full jerrycan can hold 21.2 ltrs but it is called a 20 ltr can for the expansion space otherwise called ullage space at the top. phew hope this clears a few things up for ya.
15-07-2005, 07:32 PM
#22
just finding my feet
i wanna know who does the first post about going blind as they looked down the petrol pump nossle and poured freezing fuel in there eyes
but then they wont beable to read any posts
btw my jerry can's dont hold anywhere near 20 litres
but then they wont beable to read any posts
btw my jerry can's dont hold anywhere near 20 litres
15-07-2005, 07:51 PM
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Originally Posted by RichardPON
I made this mistake on Saturday at Combe!
Opened the jerry can full of fuel, and the fuckin thing exploded all down the side of the car
Opened the jerry can full of fuel, and the fuckin thing exploded all down the side of the car
Very common Rich, we try to leave all our jerry cans out of sunlight as they will swell up even if left in the back of the car and wrapped in black bags.
And as you know its a cnut having petrol spray all over you
15-07-2005, 08:07 PM
#25
Originally Posted by david
And as you know its a cnut having petrol spray all over you
Opened the can and whoosh all over my legs. Lifted the can up began to pour and the wind blew it all over my shirt
Then they said c'mon were off to the restaraunt - no time to shower and change clothes etc....
Walked in the place and there was bloody lit candles all over the tables
I had to eat outside round the back
15-07-2005, 08:11 PM
#26
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Originally Posted by NUTS RuS
Originally Posted by david
And as you know its a cnut having petrol spray all over you
Opened the can and whoosh all over my legs. Lifted the can up began to pour and the wind blew it all over my shirt
Then they said c'mon were off to the restaraunt - no time to shower and change clothes etc....
Walked in the place and there was bloody lit candles all over the
tables
I had to eat outside round the back Quality Tony
15-07-2005, 08:13 PM
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Originally Posted by MrsFrog
Originally Posted by frog
Popeye, MrsFrog and James...
Near the tip of the nozzle is a small hole, and a small pipe leads back from the hole into the handle. Suction is applied to this pipe using a venturi. When the tank is not full, air is being drawn through the hole by the vacuum, and the air flows easily. When gasoline in the tank rises high enough to block the hole, a mechanical linkage in the handle senses the change in suction and flips the nozzle off.
Here's a way to think about it -- you've got a small pipe with suction being applied at one end and air flowing through the pipe easily. If you stick the free end of the pipe in a glass of water, much more suction is needed, so a vacuum develops in the middle of the pipe. That vacuum can be used to flip a lever that cuts off the nozzle.
The next time you fill up your tank, look for this hole either on the inside or the outside of the tip.
Near the tip of the nozzle is a small hole, and a small pipe leads back from the hole into the handle. Suction is applied to this pipe using a venturi. When the tank is not full, air is being drawn through the hole by the vacuum, and the air flows easily. When gasoline in the tank rises high enough to block the hole, a mechanical linkage in the handle senses the change in suction and flips the nozzle off.
Here's a way to think about it -- you've got a small pipe with suction being applied at one end and air flowing through the pipe easily. If you stick the free end of the pipe in a glass of water, much more suction is needed, so a vacuum develops in the middle of the pipe. That vacuum can be used to flip a lever that cuts off the nozzle.
The next time you fill up your tank, look for this hole either on the inside or the outside of the tip.
I love it when you talk dirty hun!!
Can you also do it in french now??
Originally Posted by b19bal
i wanna know who does the first post about going blind as they looked down the petrol pump nossle and poured freezing fuel in there eyes
but then they wont beable to read any posts
btw my jerry can's dont hold anywhere near 20 litres
but then they wont beable to read any posts
btw my jerry can's dont hold anywhere near 20 litres
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