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Full Version: Down In A Blaze Of Unglory - 914s on FIRE!
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nathansnathan
QUOTE(tumamilhem @ Dec 6 2012, 02:20 PM) *

Suppression system aside do to high cost, what kind of fire extinguisher should be used to keep in the car? I understand there are different kinds.

They rate them by A, B, and C. C is what you need to put out a gasoline fire. Halon is nice, but expensive, as it doesn't make a crazy mess like the dry stuff.

I will never forget the time I fire extinguisher'd my mom's toaster oven as a kid. I had burnt some pop tarts and opened the door, the oxygen , and they burst into flames. I probably could have just shut the door, but instead I filled the whole house with white powder. The toaster oven was ruined. Man, was my mom pissed! smile.gif
Dr Evil
B is what you need for gasoline. C is for electrical. A is for anything that leaves an ash, but does not have current going through it (so can be a water extinguisher).

Halon is the best as it does not ruin what is left of what you are putting out and is ABC rated. Powder extinguishers are good for gasoline, but the powder corrodes the shit out of all metals that are left behind so while your car was put out, the left overs are seriously shot.
carr914
QUOTE(struckn @ Dec 5 2012, 08:58 PM) *

Ethanol is relatively new to fuel and a problem that may now cause the original plastic lines in the tunnel to fail. Rarely a problem in the past is not a good arguement in favor of not replacing the old plastic lines.


While Ethanol sucks, it is more a problem for Rubber Lines. The Plastic Lines are the PROBLEM - they are OLD.
nathansnathan
QUOTE(Dr Evil @ Dec 6 2012, 06:44 PM) *

B is what you need for gasoline. C is for electrical. A is for anything that leaves an ash, but does not have current going through it (so can be a water extinguisher).

Halon is the best as it does not ruin what is left of what you are putting out and is ABC rated. Powder extinguishers are good for gasoline, but the powder corrodes the shit out of all metals that are left behind so while your car was put out, the left overs are seriously shot.

Yep, my bad. It is the B that is important.
Dr Evil
Bringing up my old Naval Firefighter knowledge smile.gif
Kirmizi
QUOTE(Dr Evil @ Dec 6 2012, 07:05 PM) *

Bringing up my old Naval Firefighter knowledge smile.gif


Doc, you've had fires in your belly button? confused24.gif
scotty b
QUOTE(Kirmizi @ Dec 6 2012, 08:01 PM) *

QUOTE(Dr Evil @ Dec 6 2012, 07:05 PM) *

Bringing up my old Naval Firefighter knowledge smile.gif


Doc, you've had fires in your belly button? confused24.gif



av-943.gif av-943.gif
Dr Evil
No, I capitalized the propped nouns do you would know that I was talking about a job title, not the fires I have had in my belly lint trap.
Madswede
He did say "Naval" not "navel" ... confused24.gif poke.gif
Porsche930dude
the factory seam sealer puddy seems to be very flamable
montoya 73 2.0
I replaced my home extinguishers (powder) to CO2. I was talking with the local fire extinguisher place and he was telling me that halon is still available but is twice as much as CO2 these days. A 5lb. CO2 cost me 150.00 bucks and it should also work for gasoline fires as well as electrical.
Dr Evil
CO2 removes O2 and heat from the equation so as long as there is no constant heat source you can put out a class B fire. You can also use it to put out electrical fires, and it wont ruin what is left like the powder ones will.
Drums66
.....Pass me another hotdog.......mine got burned!! laugh.gif
bye1.gif poke.gif poke.gif(&&&...the halon)
gaspump
Now you guys have me all shook up. I'm going to look at my first 914 tomorrow and it might catch fire. sad.gif What plastic lines are we talking about? One's from the gas tank to the carbs or FI, or not? Or from the fuel pump to them? Oh well, I've got a lot to learn about these cars. If I get it, I'll post some pics. driving.gif
Porschef
The factory fuel lines are a combination of nylon and steel. Somewhere in the tunnel they transition from steel to plastic. They head out the firewall, make a left (go to the right as you face the car from the back), pop up out of the right side engine shelf through two black rubber grommets, feed the fuel system, and return excess fuel back to the tank.

It is just as they exit that shelf where the problem lies, right under the battery. I replaced mine with Tangerine's excellent kit, and it wasn't until I removed the factory units that I saw how rough and BRITTLE they were at that spot. How? During the removal process I had to bend the plastic there just a bit. It kinked easily, and upon restraightening, cracked. Did I figure if it was the feed or the return that was really shot? No.

Sometimes, when I'm wondering if something is worthwhile doing, I'll ask myself "would I give (in this case, about 215 bux for SS lines and enough R9 to do the job) to have my car not catch on fire and possibly be completely destroyed? To have it back the way it was for the sake of not doing a relatively easy job as a precaution?...

Why even waste time talking about how you'd extinguish a fire?

Pretty simple answer, especially when you see the possible effects. barf.gif hissyfit.gif

It's a nearly 40 year old German car. Expect it to need some updating.

Joe
jim_hoyland
Some fires look like there's nothing that will put it out.... sad.gif

IPB Image
tumamilhem
Damn. That's heartbreaking.
Katmanken
I really hope nobody is using cable ties to secure fuel lines.

First, they can't tighten as much as a screw clamp.

Second, there is this little thing called "creep" with plastics. Creep is where you load a plastic part and it deforms or 'creeps" over time to a relaxed shape. For clamped cable ties tightened on fuel lines, that means they elongate until the tension in them reaches ZERO.

Once you hit zero tension, you might as well have left them off for all the good they will do you.

As a cable bundler they work great. As a high pressure hose clamp, they suck.

john_g
Somebody send a photo of a good quality clamp, please?
Katmanken
Here is the one supplied in the factory recall to fix the flaming 914 problem.

Note that unlike regualr hose clamps that have flat sharp edges, these have rolled edges.

Seems that the combo of clamping the the old style sharp edged hose clamps into place embedded the sharp edges into the fuel hose, and as the factory fuel hoses expanded from pressure and time, the old style sharp edges cut the fuel hose resulting in fuel sprays and fire.

Here is a link to another thread.HOSE CLAMP LINKY
nathansnathan
QUOTE(Katmanken @ Dec 9 2012, 08:47 AM) *

I really hope nobody is using cable ties to secure fuel lines.

First, they can't tighten as much as a screw clamp.

Second, there is this little thing called "creep" with plastics. Creep is where you load a plastic part and it deforms or 'creeps" over time to a relaxed shape. For clamped cable ties tightened on fuel lines, that means they elongate until the tension in them reaches ZERO.

Once you hit zero tension, you might as well have left them off for all the good they will do you.

As a cable bundler they work great. As a high pressure hose clamp, they suck.


By "secure" I mean attaching them so a they aren't flopping around in the middle. For the ends, yes, I would use something metal.
tumamilhem
Not a good use of a 914 fire, but certainly more preferable than an unintended one. WTF.gif

Click to view attachment
tumamilhem
Maybe he could part out the rest. Look like it's in good shape, save the George Foreman. :/
Jgilliam914
I had a 72 with a 1.7 go up in smoke and flames in my garage in 1986. The magnesium was put out by a foam fire suppressant. The sparks and the color of the magnesium burning was pretty and it popped like popcorn. I am thankful the car had only had a gallon of gas in it. It was up on stands at the time. The fire Marshall was called in due to the insurance co. thinking I torched it. I had issues with the starter not disengaging and he thought that the heat from that with the fuel lines so close one ignited the other. Until then I had a 9 yr old nephew who had been known to light fires staying with me I thought he may have playing with matches. What was funny about this is that the Insurance investigator who thought I may have torched it ended up being my father in law 26 years later
914_teener
QUOTE(Jgilliam914 @ Dec 12 2012, 12:36 PM) *

I had a 72 with a 1.7 go up in smoke and flames in my garage in 1986. The magnesium was put out by a foam fire suppressant. The sparks and the color of the magnesium burning was pretty and it popped like popcorn. I am thankful the car had only had a gallon of gas in it. It was up on stands at the time. The fire Marshall was called in due to the insurance co. thinking I torched it. I had issues with the starter not disengaging and he thought that the heat from that with the fuel lines so close one ignited the other. Until then I had a 9 yr old nephew who had been known to light fires staying with me I thought he may have playing with matches. What was funny about this is that the Insurance investigator who thought I may have torched it ended up being my father in law 26 years later



Now that is a story so unbelievable it has to be true!
tumamilhem
QUOTE(Jgilliam914 @ Dec 12 2012, 03:36 PM) *

I had a 72 with a 1.7 go up in smoke and flames in my garage in 1986. The magnesium was put out by a foam fire suppressant. The sparks and the color of the magnesium burning was pretty and it popped like popcorn. I am thankful the car had only had a gallon of gas in it. It was up on stands at the time. The fire Marshall was called in due to the insurance co. thinking I torched it. I had issues with the starter not disengaging and he thought that the heat from that with the fuel lines so close one ignited the other. Until then I had a 9 yr old nephew who had been known to light fires staying with me I thought he may have playing with matches. What was funny about this is that the Insurance investigator who thought I may have torched it ended up being my father in law 26 years later



Yeah, I've been wondering about this scenario. How does a car catch fire being parked and not on? Even if there is a fuel leak, there's nothing to ignite it. Concerned about mine in the garage now....
VaccaRabite
QUOTE(tumamilhem @ Dec 12 2012, 04:01 PM) *

QUOTE(Jgilliam914 @ Dec 12 2012, 03:36 PM) *

I had a 72 with a 1.7 go up in smoke and flames in my garage in 1986. The magnesium was put out by a foam fire suppressant. The sparks and the color of the magnesium burning was pretty and it popped like popcorn. I am thankful the car had only had a gallon of gas in it. It was up on stands at the time. The fire Marshall was called in due to the insurance co. thinking I torched it. I had issues with the starter not disengaging and he thought that the heat from that with the fuel lines so close one ignited the other. Until then I had a 9 yr old nephew who had been known to light fires staying with me I thought he may have playing with matches. What was funny about this is that the Insurance investigator who thought I may have torched it ended up being my father in law 26 years later



Yeah, I've been wondering about this scenario. How does a car catch fire being parked and not on? Even if there is a fuel leak, there's nothing to ignite it. Concerned about mine in the garage now....

Electrical short.
cracked insulators. Mice. Storm damage, etc. Hot wire touched ground and makes a nice spark or shorts and holds and heats up till it melts to slag. Hot enough to catch paper or foam or insulation on fire. Poof, car goes up.

Easy to keep that from happening though. Unplug the battery when you are storing it for a long time. no battery, no issues.

Compared to leaky gas lines, big electrical fires are rare. The gas lines are what you really have to take care of.

Zach
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