Meltdown (sorry it repeated)

[be77solo]

So I think I saw a Gladiator that caught fire in this thread somewhere, transmission something something, but then fell asleep scrolling the rest of the thread....

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[Imbuere]

So I think I saw a Gladiator that caught fire in this thread somewhere, transmission something something, but then fell asleep scrolling the rest of the thread....

Gladiator? who the hell is talking about a jeep. Focus here! LOL

/sarcasm (in case it wasn't apparent)

 

[LostWoods]

I get that people want to get back to the transmission topic but it's 100% speculation at this point without details. This thread might have been derailed but it's not like there's anything to say otherwise.

Either way this thread was destined to fail.

 

[rharr]

 

[Imbuere]

Or we just don't want people to spread incorrect info. What that dude was saying is just plain unsafe.

 

[rharr]

Or we just don't want people to spread incorrect info. What that dude was saying is just plain unsafe.

nope nerd fest, nerds comparing the size of their slide rules.

If you need to get into the level math and calcs you folks are talking about, then you are no longer doing basic wiring for lights, ect... When in doubt go big on wiring is what most sane people would do, screw the math.

 

[Gvsukids]

Time to refill my popcorn during this break in the action.

 

[sharpsicle]

nope nerd fest, nerds comparing the size of their slide rules.

If you need to get into the level math and calcs you folks are talking about, then you are no longer doing basic wiring for lights, ect... When in doubt go big on wiring is what most sane people would do, screw the math.

MECP professionals would like to have a word with you. This is relevant info for any electrical stuff. It's okay if you don't get it, but that doesn't mean shouldn't be understood.

People who don't take the time to understand this are the ones who fry their ECMs or start wiring fires.

Why is knowledge or learning being discouraged?

 

[dcmdon]

Supply voltage is fixed and resistance is fixed (...roughly.) but the draw is not. Loads draw exactly what wattage is required to drive them so a 120W bulb receiving 12V will draw 10A while at 13.8V it will draw 8.7A. This is why voltage matters in calculators for wire gauge spec and why 24V loads draw less current than their 12V equivalent (aside from innate efficiencies).

Given a fixed supply voltage, wiring gauge, and two runs of wiring, the longer run will generate more heat. If you have a 10ft and a 20ft length of similar gauge wiring, the resistance is roughly double in a perfect system. If supply voltage is fixed and you doubled resistance, you now have to double amperage to achieve the same wattage at the end of the wire for whatever load is there.

You think you are correcting me. But you aren't.

THANK YOU.

Iamalan and others have said that voltage will step up to maintain current. Which we both know is not correct.

EXACTLY like you said, voltage and resistance are held constant. So amperage goes down.

You mentioned that you would need to double amperage to achieve the same wattage. Correct, but to do that you would need to double voltage or halve resistance.

Also. I did NOT say that the longer will generate less heat. I said it would generate less heat PER FOOT. When we worry about a wire overheating. We are't worried about total heat generation (in watts) we are worried about how concentrated the heat generation is. (In watts per liner foot of wire).

In my example above. the longer wire generated more heat. Just like you said.

250 ft - 6 watts
1000 ft - 11 watts

But the wattage PER FOOT is less on the longer run.
250 ft - .0273 watts per foot
1000 ft - .01181 watts per foot

So since the shorter wire is dissipating more wattage PER FOOT it will get warmer.

 

[IamAlan]

Iamalan and others have said that voltage will step up to maintain current. Which we both know is not correct.

EXACTLY like you said, voltage and resistance are held constant. So amperage goes down.

(1) Nowhere did I say that voltage would step up.
(2)Voltage will DROP over distance, not maintain. Amperage will steadily maintain its demand and therefore RESISTANCE will increase. Which, as we know, increases heat. This will continue until such time as the insulation on the conductors burn. Dude.... I'm done. Have a safe life.

 

[shrinkhead]

It was a 3.6 gasser btw. curious what the transmission temp was before it blowing up and what can cause such a tranny failure.

 

[Mr._Bill]

I get that people want to get back to the transmission topic but it's 100% speculation at this point without details. This thread might have been derailed but it's not like there's anything to say otherwise.

Either way this thread was destined to fail.

Post #3 indicates that the Owner reported it as a catastrophic failure of the transmission that damaged a fuel line. The speculation came afterward that it was electrical, and it devolved from there.

 

[AZCooWhip]

What melted?? ??

 

[Mr._Bill]

It was a 3.6 gasser btw. curious what the transmission temp was before it blowing up and what can cause such a tranny failure.

My guess would be some damage that caused the fluid to leak out. Transmissions will suffer through a lot of misuse, as long as the fluid stays in there.

 

[Gvsukids]

My guess would be some damage that caused the fluid to leak out. Transmissions will suffer through a lot of misuse, as long as the fluid stays in there.

At what temperature would it catch fire?

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