The biggest cause of engine fires is?

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Re: The biggest cause of engine fires is? = Oil leaks

Postby Ian and Lins » 20 Apr 2018, 08:52

So in the unlikely event that I'm using a diesel generator when wild camping in my petrol engined van while carrying magnesium engine cover for my Aprilia RSV1000 RR and the pig-tailed wired in Aldi stereo starts warming up..........? Makes you wonder why you bother getting out of bed in the morning. Interesting point about the oil being a major cause.
Are we going on anything else?

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Re: The biggest cause of engine fires is?

Postby itchyfeet » 20 Apr 2018, 10:12

Two other interesting facts

3 breaths of smoke and you are out, unconsious, thats all it takes.
the cloth over the mouth is for movies don't try it.

Powder fire extinguishers should not be used near people or indoors, you will choke on the powder and that puts you at risk.
I have a few in my house but I will think again about this.
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Re: The biggest cause of engine fires is?

Postby bigbadbob76 » 20 Apr 2018, 12:37

One of my guesses would have been brake fluid leaks/spills.
That stuff ignites when it hits a hot exhaust too.
Not a problem on our vans where the master cylinder is about as far from the engine as you can get. :ok
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Re: The biggest cause of engine fires is?

Postby silverbullet » 20 Apr 2018, 12:43

Unless you have a really bad slave cylinder or pipework leak...

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Re: The biggest cause of engine fires is?

Postby bigbadbob76 » 20 Apr 2018, 14:45

silverbullet wrote:Unless you have a really bad slave cylinder or pipework leak...


and you keep pumping the brakes to try and build pressure....... :lol:
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Re: The biggest cause of engine fires is?

Postby tonytech » 21 Apr 2018, 21:42

I've done fire extinguisher training, Powder extinguishers are evil.
Even the fire officer was reluctant to set one off.
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Re: The biggest cause of engine fires is?

Postby NicBeeee » 22 Apr 2018, 07:28

tonytech wrote:I've done fire extinguisher training, Powder extinguishers are evil.
Even the fire officer was reluctant to set one off.


Probably down to the mess they make. Anything is better than fire.
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Re: The biggest cause of engine fires is?

Postby itchyfeet » 22 Apr 2018, 07:43

NicBeeee wrote:
tonytech wrote:I've done fire extinguisher training, Powder extinguishers are evil.
Even the fire officer was reluctant to set one off.


Probably down to the mess they make. Anything is better than fire.


not sure I agree if your van burns out you get the insurance and buy another, a few lungs full or corrosive powder , or maybe an eye full may give you health problems for a long time.
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Re: The biggest cause of engine fires is?

Postby bigbadbob76 » 22 Apr 2018, 15:16

tonytech wrote:I've done fire extinguisher training, Powder extinguishers are evil.
Even the fire officer was reluctant to set one off.


Me too, last time we set one off outside an open hanger, the wind blew the powder into the hanger and set off the smoke alarms. :lol:
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Re: The biggest cause of engine fires is?

Postby Ian Hulley » 22 Apr 2018, 21:21

A D.P. extinguisher discharged through the cat flap will do you no harm and possibly smother an engine fire ... nasty to clean up after but better than nothing.

Inside the van it depends what's going up ... people out first full stop. Then anything you have IF you are safe to do so.

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Re: The biggest cause of engine fires is?

Postby Oldiebut goodie » 22 Apr 2018, 21:47

I had to put out a fire in the wiring under the dash of a Metro once with powder, immediate extinguishment but the mess was awful.
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Re: The biggest cause of engine fires is?

Postby itchyfeet » 23 Apr 2018, 06:43

Ian Hulley wrote:A D.P. extinguisher discharged through the cat flap will do you no harm and possibly smother an engine fire ... nasty to clean up after but better than nothing.

Inside the van it depends what's going up ... people out first full stop. Then anything you have IF you are safe to do so.

Ian



Totally agree which is why I have a large powder in the van but I had never realised the implications of using it inside before.
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Re: The biggest cause of engine fires is?

Postby Ian and Lins » 24 Apr 2018, 06:59

Interesting discussion. I've always been taught that fire extinguishers are there to help you and others to get out, NOT primarily to put out a fire. Hats off to any firefighters out there too; full time, volunteer or in the work place.
Are we going on anything else?

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Re: The biggest cause of engine fires is?

Postby captain Byrne » 24 Apr 2018, 09:08

So if powder extinguishers are so damaging, is there an argument for CO2 instead?
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Re: The biggest cause of engine fires is?

Postby Mr Bean » 24 Apr 2018, 11:01

captain Byrne wrote:So if powder extinguishers are so damaging, is there an argument for CO2 instead?


Emergency Overview: Colourless gas. Odourless. Will not burn. COMPRESSED GAS. Contains refrigerated gas. May explode if heated. CONFINED SPACE HAZARD. Can accumulate in hazardous amounts in low-lying areas especially inside confined spaces. ASPHYXIANT. High concentrations can displace oxygen in air and cause suffocation. May cause frostbite.

Probably not too bad out in the open but as in many compressed gas or powder systems involves a trade off of utility versus operation time. If you don't get the fire out before the extinguisher expires what next?
Water Mist:
One of my last projects prior to retirement was to specify a fire suppression system for an application very similar to the one existing in our vans, particularly in respect of comparatively high airflow in the presence of pumped fuel i.e. petrol and a remote operator - in the case of our vans we up front concentrating on driving. Many will be surprised to learn that a water mist system was the only system which completely met health and Safety requirements in respect of harm to personnel and safety of products discharged, reaction time constraints and requirements for zero collateral damage from the suppression agent/s.

In this case a circa 40 cubic metre test enclosure required a single nitrogen bottle together with two similar pressure vessel containing water and a series of fine mist nozzles. Upon fire detection by one or more sensors a solenoid valve operated so as to admit nitrogen under extreme pressure into the water container which forced water into the nozzle/s so as to fill the entire enclosure with a dense mist which although very effective in extinguishing inflammable liquid fires etc. is virtually benign in terms of human contact and aspiration and causing very little collateral damage even to electronic devices such as computers etc. Incidentally as the nitrogen simply provides a constant pressure until the water is used and water is cheap then the duration of the activated system is the capacity of the water container/s.

Ok probably a bit over the top for a T25 :roll:
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