# Lego Hit-and-Miss Engine Replica

> A YouTuber built a working Lego hit-and-miss engine using vacuum power to mimic a 1930s-era design.
- Title: Lego Hit-and-Miss Engine Replica · The Drive | Shortify
- Summary: A YouTuber built a working Lego hit-and-miss engine using vacuum power to mimic a 1930s-era design. YouTuber Delton Adams created a Lego hit-and-miss engine…
- Keywords: delton adams, lego, hit-and-miss engine, vacuum power, four-stroke, studpower, antique engine, cars, technology, Hit-and-Miss, Engine, Replica
- Source: The Drive — https://thedrive.com/news/recreating-an-antique-hit-and-miss-engine-with-lego-is-one-way-to-kill-time
- Author: Stephen Edelstein
- Published: 2026-10-04T14:00:00+00:00
- Read time: 1 min
- Topics: delton adams, lego, hit-and-miss engine, vacuum power, four-stroke, studpower, antique engine, cars, technology
## Lego Engine Freedom
Lego pieces allow building without following instructions, enabling creative projects like working engines.
## Hit-and-Miss Engine History
Hit-and-miss engines stopped being common use in the 1930s and were used as stationary power sources early in the 20th century.
## Vacuum Power Mechanism
Adams used vacuum power instead of combustion to spin the engine, mimicking the hit-and-miss cycle without ignition.
## Engine Design Adaptation
Adams swapped camshaft and pushrod for an inverted cam and rocker with a spring to operate valves against vacuum pressure.
## Realistic Lego Components
The engine includes friction-reducing roller bearings, wrist pins, and long studs for a period-correct replica.
## Power Output Result
The Lego engine generates 0.12 watts of power, or approximately 1.5 studpower, a measure of Lego engine output.
## Key takeaway

YouTuber Delton Adams created a Lego hit-and-miss engine that generates 0.12 watts of power using vacuum mechanics.