Man Spends 700 HOURS Building a DIY GASOLINE ENGINE | Start to Finish by @RochaKRG

What you are about to witness is the complete fabrication of a fully functional miniature 4-stroke boxer gasoline engine, handcrafted by RochaKRG, an expert model engineer and precision machinist. Over the course of approximately 700 hours of meticulous work, he personally designed, machined, and assembled every single component of the engine entirely from raw materials. No prefabricated engine parts or commercial kits were used; every critical system, from the engine block to the gear-driven timing mechanism, from the carburetor's micro-metering system to the exhaust manifolds, was individually produced through highly specialized manual machining techniques. The result of this extraordinary effort is a fully operational, two-cylinder horizontally opposed (boxer) internal combustion engine. It operates according to the Otto cycle with full 4-stroke timing synchronization, complete with gear-driven dual camshafts, custom-machined crankshaft, precision pistons, hand-cut gears, micro-fabricated valves, and a fully functional carburetor employing Venturi effect fuel metering. The entire system operates under extremely tight tolerances, often controlled to within ±0.01 mm, demonstrating RochaKRG’s exceptional control over dimensional precision, mechanical alignment, and micro-scale assembly discipline. Rocha KRG YouTube: https://www.youtube.com/channel/UCGOxLRYpzNVXFxqhb35a97g Facebook: facebook.com/rochakrg Instagram: instagram.com/rochakrg Disclaimer: Quantum Tech HD is not affiliated with the businesses whose products are shown in this review. Any trademarks depicted are the property of their respective owners.