Much easier to demonstrate with a single cylinder, and the diagram needs an element depicting airflow in its different stages

Yess, Tracker. Thank you, I couldn't remember the name haha

Edit I just remembered the Metro... That was the 3 cylinder model I believe

I had a Geo Tracker. It had the aerodynamics of a barn door but.... I seriously got 38mph, went 88mph with 5 adults, always started and 141,000 miles.

I’m a little confused. I know nothing of engines, but those lights look like they are not synced up

This can easily be accomplished by driving a 1978 Trans am 6.6 with a 400 big block at about 68 mph and quickly downshifting ( without sufficiently pre braking )... Still brings a tear to the eye

My dad had a coworker-- 3 or 4 guys all shared the same office but had different departments-- who would walk in every morning an absolute ass to everyone else about being messy, loud, etc. while changing from his driving shoes to his safety boots. It wasn't anything disgusting, just maybe papers on their desks, snowy boots by the door, etc. The guy was just a neat freak and tried to make everyone else in the office the same way. (Yeah, 'cuz that's gonna work. It was damn steel mill.)

So one morning my father stuck a jelly filled doughnut in the toe of the guy's boot before he got into the office. Dude didn't even get a minute to complain, just sat down, grabbed that boot, jammed his foot (ha!) down inside and when jelly shot out of the boot and up his pants leg, he took off the boot and his socks, put his street shoes back on, turned around and went home.

Dude checked his boots before he put them on from then on.

I had a 92 Geo Storm ( so I actually had 4 cylinders 😜).

I Absolutely LOVED that car. Got it right after a desert deployment, and after the rebates and military factory incentives , I got it for @ $6,000 . It would do 120 mph [source: was pulled over by Kansas state patrol officer who had a stopwatch showing exactly 30 seconds, and he told me that was my last mile. Was standing at parade rest the entire time and the good ol boy let me go with a warning! Whew] It would get as many as 48 mpg ! ( When driving considerably under 120) And the stereo with installed 12 band graphic equalizer w booster and detachable woofer box in the back ROCKED ! Ended up selling it for $4,800 4½ years later when I went to Korea.

Sorry... Little trip down memory lane... But yeah, the other Geo model had a 3 cylinder motor 🙂

Suck, squeeze bang, blow 😉

"Throwing a rod" means that a connecting rod breaks. In this example, the connecting rods are the three green pieces near the bottom connecting the crankshaft (the yellow part) to the pistons (the three orange parts). Everything is moving very slowly here, but in an actual engine, connecting rods can be moving with enough energy to eject them completely through the crankcase (the engine's body), hence the term "throwing."

Oh yes i see now. How could I have not understood before?

This is so amazingly complicated I feel like electric motors will make us dummer.

Looks like a Geo

I agree it looks a little confusing.

🎵suck, squeeze, bang, blow. That’s how four-stroke engine go.🎵

The bottom green part breaks. The top green part is the camshaft. The yellow part is the crank. The orange is the piston.

Oh my gosh! I’m so happy to see this site is still around. I remember using this to learn about engines when I was little. Thank you for sharing!

No that’s the boomerang logo, I need the app to shorten my video.

I still have no damn idea

They can sell inaccurate devices

They do open before BDC. Imagine a graph with two curves plotted. One curve is the "benefit" you get from leaving the valve closed and using every last bit of pressure. The other curve is the "benefit" you get from opening the valve early and starting exhaust flow. Those two graphs cross before BDC; there's more "benefit" to opening the valve than there is to keeping it closed.

Also, it's actually open past TDC. Right at TDC you've invested energy in establishing flow; if you slam the exhaust valve right then that flow just "piles up" against the valve, which doesn't help you. As a matter of fact, the intake valve opens (and stays open a surprisingly long time) before the exhaust valve closes...that's called "valve overlap". Less overlap = low RPM power, longer overlap = high RPM power. Overlap uses that flow through the exhaust valve to pull more fuel & air mixture into the cylinder.

Valve Overlap

I believe this is bullshit.

So what happens when you “ throw a rod “

Here come dat boi

Red is exhaust

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