Car Engines and Diesel Power
Start from zero and discover how internal combustion engines actually turn fuel into movement. Learn the physics behind heavy diesel machinery and build the foundational diagnostic mindset of a professional mechanic.
Like Duolingo, but for Car Engines and Diesel Power. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
A short one: 11 levels across 2 sections, about 22 minutes end to end, roughly 4 days at five minutes a day. It moves through The Mechanical Heart and Support Systems and Diagnostics. It starts from scratch.
Free forever · No credit card · iPhone & Android
Key ideas in Car Engines and Diesel Power
- An engine functions essentially like a heavy-duty air pump that takes in air, burns fuel, and expels exhaust
- The combustion of fuel creates high-pressure gas that pushes pistons downward in a straight line
- That straight downward push must be transformed into spinning motion to turn the vehicle's wheels
- Intake draws fresh air into the cylinder first
- Compression squeezes that air into a tight space, heating it up
- Power occurs when fuel burns, forcefully driving the piston down
- Exhaust pushes the leftover spent gases out of the cylinder so the cycle can repeat
- The crankshaft is connected to the bottom of the pistons to turn straight up-and-down motion into rotation
- The camshaft uses egg-shaped lobes to open and close intake and exhaust valves at the exact right millisecond
- Both shafts must stay locked in precise mechanical timing for the engine to run without colliding inside
- Piston rings wrap around the piston to form a tight seal against the cylinder wall so burning gas cannot escape underneath
- Gaskets seal the mating surfaces between heavy metal parts, like the engine block and the cylinder head, to hold in extreme pressure
- A leak in these seals bleeds off the pressure needed to drive the piston down forcefully, causing weak engine performance or failure
- Gas engines rely on spark plugs providing an electric spark to ignite the air-fuel mixture
- Diesel engines draw in pure air and compress it tightly enough to reach temperatures over 1,000°F
- Injecting diesel fuel directly into this superheated compressed air causes spontaneous combustion
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives Car Engines and Diesel Power the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
When fuel burns inside a cylinder, what does the trapped gas actually do?
Get it right to open this lesson and 10 more in the app.
Where Car Engines and Diesel Power takes you
- 1
The Mechanical Heart
- How an Engine Breathes and Fires
- The Diesel Difference: Compression Over Sparks
- 2
Support Systems and Diagnostics
- Vital Fluids and Forced Air
- Thinking Like a Mechanic
2 sections · 4 units · 11 levels. Built to play, not to enroll.
Tomo is in ChatGPT
Tomo is also a ChatGPT plugin: the same playable courses, built and played inside your chat.
Add Tomo to ChatGPT- What to ask
- “Make me a Tomo course on black holes.” “Turn this chat into a Tomo course.”
- What you get
- Quick questions with instant feedback, hearts and stars, ready to play in about a minute.
- Where it goes
- No sign-up to start. Connect your Tomo account and your streak carries on in the app.
You pick the voice
Car Engines and Diesel Power is taught in the Bestie style: your friend who just gets it. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
More Technology on Tomo
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Hands-On Auto Mechanics
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Start Car Engines and Diesel Power today.
Download Tomo, search Car Engines and Diesel Power, and play your first lesson in under a minute.