Four interactive 3D engines your students can run, take apart in real teardown order and see inside. Tap any part to learn what it does. It works in any browser, on Chromebooks, laptops, tablets and phones, with nothing to install and no student accounts.
Every part moves on real geometry: pistons, rods, cams, valves, gears, chains, even the gearbox shifting through its gears.
Step through the teardown in the order a mechanic would. Bolts back out before each part comes off; clutches come apart plate by plate.
Watch the four-stroke and two-stroke cycles inside the cylinders, plus temperature and airflow views that show where the heat goes and how air, fuel and exhaust move.
A guided cycle tour for introducing a topic, and a find-the-part quiz for warm-ups and exit tickets.
Air-cooled pushrod twin: gear-driven cams, fork-and-blade rods, dry-sump oiling, 5-speed.
90° pushrod V8: cross-plane crank, distributor ignition, 4-barrel carb, V-belt accessories.
Liquid-cooled DOHC 16-valve four: fuel injection, wet clutch, 6-speed gearbox with a working shift drum.
Reed-valve motocross single: ports, transfers, expansion chamber, flat-slide carb, kickstart.
Wankel engine: triangular rotors, epitrochoid housings, apex seals, eccentric shaft, peripheral ports.
Common-rail compression-ignition four: high-pressure pump, injectors, glow plugs, turbocharger, EGR.
Per teacher. All engines for every student in your classes, plus new engines as they're added. Use it on the projector and on students' own devices.
The V-twin is free for everyone, with the full tour and quiz. Want the rest for a trial run with your class? Ask for a 30-day trial code.
Several teachers or schools? We'll put together one license and one invoice, with purchase-order billing.
Students don't sign up, log in or give us any personal information. Only the teacher has an account. No ads, no tracking cookies, nothing sold. See the privacy policy.
Payments are handled by Lemon Squeezy as merchant of record, and invoices include tax where it applies. Cancel any time and keep access until the end of the paid year. All sales are final, so try the free V-twin or ask for a trial code first (see the terms).
Engine Walk is an independent teaching tool. Each engine is a teaching model inspired by well-known production layouts; it isn't made by, affiliated with or endorsed by any engine or vehicle maker.