The exhaust won’t work, but included with my grandpa’s 1952 8n ford tractor came with an adaptor that you would replace a spark plug on one cylinder, and then pump up a tire using the unburned air fuel mixture into the tire, and running the enigne on the other 3 cylinders.
So the idea is very close to something that was actually done in the real world.
That’s a bomb you’re inflating at that point.
You are not the first to think of that . But I know the adaptor was somewhat common (the 8n is the most popular tractor model ever, and shared an engine with the model A) and i’ve never heard of issues. I’m not sure if that is because nobody talked about it though.
You’d need to either already have the tractor on fire, or somehow have an ignition source for this to happen, but you’ve essentially made a pipe bomb.
It isn’t very likely to connect with open flame. Tires are pretty well suited for containing air.
In case your rig is on fire for long enough to melt through the very thick tires, that would be dangerous, yes.
Perfect username for that comment ❤️💣
I’m going to use this to fill my motorcycle tires. Fuel vapor bombs on both wheels. Yikes.
They say in a car motorcycle colision the motorcycle always loses. But that’s not true; we could both lose.
Don’t have to pay for insurance if any little crash becomes deadly!
Just unplug the injectors first. Or turn the fuel shutoff valve if it’s carbureted.
If you turn the fuel off on a carbureted engine, it won’t run.
Yes, that’s the point. You don’t need it to run to fill a tire: just crank it over a few times with the starter then replace the spark plug and turn the fuel back on.
If you wanted to run the engine while once cylinder is connected to a tire then you’d very quickly overinflate it. Also you’d be running the engine without a cylinder (no spark plug) which is probably always a bad idea and in many cases straight up impossible.
The pressure from an exhaust pipe is <0.17 bar or 2.5 PSI.
My car tires have to be pressurized to 2.3 bar or 33 PSI.
So what happens is you get a flat tire that smells funny. And if you are doing that in a garage, you’ll probably get carbon monoxide poisoning.
You get tired.
You’d fill a tire with pretty low pressure, dirty, mostly co2, I’d assume. It probably wouldn’t be drivable and even if it was the small amount of oil and fuel residue would likely damage the inside of the tire after a while.
There are some cool gadgets that you screw into a spark plug socket in the engine and crank it over with the starter to inflate a tire. You’d want to unplug the fuel injector(s) or you’d be turning the tire into a bomb.
The sherp vehicle does just that.
Much lower tyre pressure than almost any other vehicle, I’d imagine.
There’s going to be a limit to how much pressure before stalling and/or damaging the engine, but it would inflate, and as the gases cooled, it would deflate somewhat.
Exhaust jacks are used in 4x4 recovery, so an engine can lift a car, but they seem pretty limited and dangerous and I’ve only seen one used once in my ~25yrs off road.
so an engine can lift a car
Force = pressure x area
It’s not that big of a feat. Using the very low estimate of 2.5psi from another comment about exhaust pressure, that means it can sustain 2.5 pounds(force) per square inch. To lift half a 5000lb suv the force needed would be 2500lbs. Rearrange the equation to [area = force/pressure] and it becomes [area = 2500lbs/2.5 lbs per square inch] so 1,000 square inches. Divide by 144square inches per square foot (12x12) and you get 6.94 square feet gives you 2500lbs of force from 2.5psi. Then to find that area from a circle, divide by pi and square root the result (rearranging area=pi*r^2 ) and you find that 2.5psi will lift the side of an SUV with a little less than a 3 foot diameter circle. That’s about the size of the lift bags I’ve seen.
And all that while I’m thinking 2.5psi sounds low. Regardless, I doubt an exhaust system would handle anything close to tire pressure before popping off fittings. Plus mufflers have weep holes and fittings tend to leak anyway. They rely on the direction and speed of exhaust gas a fair amount.
I’m not so sure you can get enough pressure from the exhaust
The tire works fine, the air your using is hot, so as it cools down the tire will lose pressure a bit
