Micra fuel tank leak

[Burnerman]

Ye gods.......
Aircraft fuel? Kerosene @ 28 sec redwood. Diesel, 34 sec redwood if I recall.
Keep it up lads, only 26 pages to go.
John

 

[Mottie]

Someone quoted a US study that proves you wrong.

Then they are as sad, lonely and wrong as you are.

 

[Harry Bloomfield]

My guess is your tractor is special. Is it a toy one? All other tractors are diesel.

Wrong again, the early tractors in the UK, ran on petrol, later ones were diesel. Mine is a petrol, or there would have been little point in even mentioning it.

An extremely refined fuel used by planes will go gaseous even faster.

They burn Jet fuel, which is kerosene, otherwise known as paraffin. It is an oil, little different from heating oil, not very volatile at all, quite similar to diesel.

 

[DiyNutJob]

They burn Jet fuel, which is kerosene, otherwise known as paraffin. It is an oil, little different from heating oil, not very volatile at all, quite similar to diesel.

Wrong.

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Yes, jet fuel is considered volatile, meaning it readily evaporates into vapor, especially when compared to other fuels like diesel, but not as volatile as gasoline; however, compared to other aviation fuels, its volatility varies depending on the specific type, with some variants like "wide-cut" jet fuel being more volatile than standard Jet A fuel.

 

[carmanmemoranda]

So, you are none the wiser if I didn't tell you about it.

Part of the pre test, and then the test is to check the sealing of the cap.

I was assuming you were answering whether an air leak was an MOT fail. But you appear not. The gist of it is I have a pass, unless I tell the tester I have an air leak.

I have quoted you the testers manual. It clearly mentions fuel leak. But if it's a hole then both air and fuel can get in and out.

Car body shell is in way of the petrol fume "rain". There is nothing at the bottom to clean.

Tetsers look under the car as well as the top

 

[Harry Bloomfield]

Yes, jet fuel is considered volatile, meaning it readily evaporates into vapor, especially when compared to other fuels like diesel, but not as volatile as gasoline; however, compared to other aviation fuels, its volatility varies depending on the specific type, with some variants like "wide-cut" jet fuel being more volatile than standard Jet A fuel.

If you truly believe it is volatile, try igniting a pool of it. It will burn via a wick, it will burn if turned into a mist, but unlike petrol, a pool of it will put out a match.

Anyway - I'm outa this silliness, arguing with AI.

 

[DiyNutJob]

I have quoted you the testers manual. It clearly mentions fuel leak. But if it's a hole then both air and fuel can get in and out.

How do you know there is a hole? I can't tell if there is a hole.

Tetsers look under the car as well as the top

If they look under the car, no need for me to do it then.

 

[DiyNutJob]

Anyway - I'm outa this silliness, arguing with AI.

If AI doesn't meet your requirements, perhaps youtube will?

 

[Harry Bloomfield]

If AI doesn't meet your requirements, perhaps youtube will?

Your usual level of silliness. Fuel, onto a very hot surface, will ignite, even jet fuel.

 

[Avocet]

Petrol, is a volatile liquid, which at normal temperatures, is just on the point of evaporation - which basically means it can be either a liquid, or a gas. It doesn't require much pressure, or much concentration above it, in a gaseous state, for it to be maintained as a liquid. In other words, it doesn't need much, to keep it in the liquid state.

Which explains why, despite tanks having a breather hole, in the past, the petrol didn't instantly evaporate. Anymore than you leak at the filler pipe, caused your entire tank of fuel to evaporate.

My tractor had a full tank of fuel, when last used September/October. I pulled it out just yesterday, to inflate the tyres, and check it over, ready to cut the grass, for the first time later this week. The tank has an open breather system. The fuel tank was, as expected, still full yesterday, no measurable evaporation I could detect.

Yeah, that's just typical Nutjob ******. My old Alfa doesn't have any evaporative emissions control - just an open breather. I could park it for a decade and there would still be liquid petrol in the tank. Some of the more volatile fractions would have evaporated off, but I doubt, even after a decade, that it would be enough to even show a difference on the gauge.

 

[Avocet]

Your usual level of silliness. Fuel, onto a very hot surface, will ignite, even jet fuel.

Interesting to see Nutjob posting about the fire risks associated with ICE vehicles... Maybe he could avoid all this if he traded it in and got himself a nice Nissan Leaf...

 

[DiyNutJob]

Interesting to see Nutjob posting about the fire risks associated with ICE vehicles... Maybe he could avoid all this if he traded it in and got himself a nice Nissan Leaf...

For someone with very poor feel for things, let AI help you:

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Lithium can spontaneously ignite in air if it's finely divided into a powder or dust. It can also ignite if it's heated to 180°C.

The autoignition temperature of jet fuel is 210°C (410°F).

The autoignition temperature of diesel is 210°C (410°F).

The autoignition temperature of gasoline is typically around 247-280°C (477-536°F).

 

[DiyNutJob]

After cleaning up, the filler neck looks to be in fair condition. There are spots of roughness on the fill neck funnel where the cap gasket presses against. This will likely to prevent a perfect seal. For now, I will just keep it under observation. Failing of MOT is unlikely even if the tester can be bothered to check. I did not try sanding because removing of adjacent paint will just end up creating more rust and greater problems.

On my car, the neck is yellow zinc plated and doesn't suffer this problem. But the germans used carpy rubber and my gasket is all cracked. Luckily china sells a replacement for £1. So, that't two cars sorted in 1 thread for a grand total of £1. That's well worth the 30 pages.

 

[Harry Bloomfield]

On my car, the neck is yellow zinc plated and doesn't suffer this problem. But the germans used carpy rubber and my gasket is all cracked. Luckily china sells a replacement for £1. So, that't two cars sorted in 1 thread for a grand total of £1. That's well worth the 30 pages.

Not really, you still don't know where your tank of fuel went.

 

[DiyNutJob]

Not really, you still don't know where your tank of fuel went.

Some of it went into my bucket after scrubbing. Some of it probably rained down on your large lawn.