Part 12: 13B Rotary Engine Rebuild - My 76 Mazda RX-5 Cosmo Restoration

Just as I promised last episode, it is finally time to build the engine! Part 12 of my RX-5 Cosmo restoration covers the entire process of building the 6 port 13B Mazda rotary engine. While this engine is a hybrid of GSL-SE RX-7 and Cosmo parts, the process is the same for any rotary from a 12A to a 13B NA, 13B turbo, 13B-REW or any other variant of the 13B. This video shows the whole process of the engine build, starting from measuring the rotors and covering everything else including clearancing the side seals, assembling the rotors, complete assembly the short block, setting the eccentric shaft end play and installing the front cover and everything underneath it. It's probably the most complete engine build video outside of what you can buy from the vendors, and as such, is an hour long. After this one, I'm going back to videos under 20 minutes. But for now, grab a beverage of your choice, sit back, and enjoy.

More Videos...


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





Part 13: Clearing The Engine Bay - My 76 Mazda RX-5 Cosmo Restoration
With the engine built, it seemed logical to focus a bit on where that engine is to live: under the hood. Episode 13 has me stripping all the remaining mechanical components out of the engine bay in preparation for it to be blasted, repaired and painted. This is dirty grunt work, not particularly stimulating but at least it isn't sheet metal. It's been a while since my last update and rest assured, what you see here is only a small fraction of what has been done. I have plenty more footage ready to edit. Included in this episode: removing all engine bay mechanical components, removing brake lines and cylinders, labelling and removing wiring harnesses, removal of the steering gear, orderly disassembly of an engine bay.





Rotary Engine Breakthrough?
The Wankel engine always held out a lot of promise, but never was able to fully deliver on those promises. It was never very fuel efficient, and the Exhaust temperatures were very high. But now an independent car tech thinks he has stumbled onto what held that engine back. Get more video everyday at http://autoline.tv





TOP 10 Homemade ENGINES
Sources & Credits: 10. Smallest Handmade Engine https://www.youtube.com/watch?v=UyPd40uNVUQ 9. 8 Cylinder Engine https://www.youtube.com/watch?v=XsD8aI6nPV0 8. Victory 44 https://www.youtube.com/watch?v=B9zt3SF_Flc 7. W-32 https://www.youtube.com/watch?v=ZVuKp5M3de8 6. V12 Solenoid Motor https://www.youtube.com/watch?v=6HND4x22jXM 5. 7 Cylinder Radial Engine https://www.youtube.com/watch?v=SyRJeZ6s8uM 4. Straight Eight https://www.youtube.com/watch?v=p5y3a2did4E 3. V10 Model https://www.youtube.com/watch?v=RUv1hv7g7WA 2. Flying Millyard https://www.youtube.com/watch?v=ND4EA0dnAM8 1. Sutton's Radial https://www.youtube.com/watch?v=7WAtEvkAQs4 Music: "Escape From Area 51" By K1Woods Licence purchased from premiumbeat.com Please contact me at messagejdrock@gmail.com if there is any dispute about content being used in this video or if you want a video clip removed, thanks!




Follow