Building a 13B-REW

This is how a 13B engine is brought to life from the Mazda factory. Courtesy of RE4life.com "Mazda Factory's veteran Engineer, Mr. Uchitani shows how Rotary Engines are assembled. Amazing that each RE has been built by hand until 2003!"

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RE AMEMIYA 20B Disassembly
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Suzuki Rotary RE-5 Part 1 of 2
Suzuki presented its first, and only, rotary engine powered motorcycle at the Tokyo Show in late 1973. The RE5, as the model was called, was Suzuki's technical flagship at the time and a fine motorcycle. The engine, originated from NSU in Germany, was smooth, quiet, powerful and had hardly any vibrations, thanks to its construction with no parts moving back-and-forth like the usual Otto engine. The rotary, or Wankel, engine has a number of benefits over standard engines including a lack of camshafts, intake and Exhaust valves, and a reduced number of moving parts. Many manufacturers experimented with the engine type and some prototypes were presented in the early 70's but Suzuki was the only motorcycle manufacturer that used the rotary engine on a mass produced bike. Suzuki presented the engine sometimes as 1000cc, because some regulatory bodies de-rate the engine by doubling the chamber capacity. The actual cylinder capacity was 497 cc. The design of the RE5 was not as revolutionary as its engine. The instrument panel and tail light were contained in cylindrical shapes to play on the rotary theme, otherwise the bike looked a lot like the company's two-stroke flagship GT750. Also included was a special heat shield since the rotary engine design tended to make Exhaust pipes hot enough to burn riders' legs. What happened? The customers did find the RE5 interesting, but not many but not many of them actually bought the model. Perhaps it was the new technology that scared off the customs, perhaps it was the heavy fuel consumption that made it. However, Suzuki had invested enormous sums of money to the project and had built an entire new assembly line for the rotary engines but the machines wouldn't sell. The cylindrical instrument panel and tail light were replaced by standard type items in 1976, in order to make the bike look more "normal" but it didn't help much. The model, and the whole rotary engine project, was buried in 1977.





How To Build A Rotary Engine
Joe Ferguson from Mantella Autosport assembles a Mazda Renesis 13B rotary engine using Goopy Performance seals and refurbished housings along with Racing Beat ported irons and lightened rotors. Dave and Joe take you on a serious rotary geekfest as they show you exactly how these engines go together and explain how the unique Wankel combustion process works as well as covering some of the strengths and weaknesses of the Renesis vs older versions of the 13B. If you're ever at a Pirelli World Challenge race, go say hi to the guys at Mantella Autosport, tell them we sent you, and get a good look at their amazing KTM Xbow GT4 racecars. Our Patreon page: https://www.patreon.com/speedacademy Our Shopify page: http://speed-academy.myshopify.com Follow us for up to the minute project updates: Website: http://speed.academy Facebook: http://www.facebook.com/gofastwithclass Instagram: http://instagram.com/speedacademy Twitter: https://twitter.com/SpdAcademy





Rotary engine 13B opening
Ouverture de mon 13B dans le but de le rebuilder. C'est mon premier rotatif, soyez indulgent avec les petites erreurs que j'ai pu faire. Opening my 13B rotary engine to rebuild it. It's my first rebuild, so please excuse the mistake I've made.




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