Stories
| Title | Date | Excerpt |
|---|---|---|
| How to properly break in a freshly rebuilt rotary engine | A freshly assembled 13B or 20B is a precision instrument, and the way it is treated during its first hundred hours determines whether the apex seals, eccentric… | |
| Side seal and corner seal failure in Mazda RX-7 engines | Rotary engines depend on a precise seal arrangement to keep combustion pressure inside each chamber. The apex seals receive most of the attention, yet the side… | |
| Cera-metallic vs carbon apex seals: Choosing the right seal | The apex seal is the single most critical wear component inside any Wankel-style rotary, and the material choice between cera-metallic and carbon defines how… | |
| Understanding apex seals in rotary engines | Apex seals are small, spring-loaded strips that sit at the tips of a rotary engine’s rotor. They maintain contact with the housing, separating the three… | |
| Why Pre-Mixing Oil Matters In An RX-7 | Rotary engines have a distinctive lubrication challenge. A piston engine keeps most of its critical oil inside the crankcase, while an RX-7’s apex seals,… | |
| Rotary Engine Oil System Basics For RX-7 Owners | A rotary engine depends on carefully controlled lubrication because its combustion chambers are formed by the housing and moving apex seals rather than… | |
| How to Identify a Genuine 20B Engine Block and Rotor Housings | A genuine Mazda 20B is far rarer than a 13B, and that scarcity has created a market where incomplete engines, mixed rotary parts, and optimistic descriptions… | |
| 20B-REW Triple-Rotor Engine History And Technical Specs | The 20B-REW occupies a special place in Mazda’s rotary-engine story. It was the company’s only production three-rotor powerplant, developed for the… | |
| 13B-RE vs 13B-T: Choosing the Right Rotary Character | The 13B family has powered several generations of Mazda sports cars, luxury models and performance projects. Although these engines share two rotors and a 654… | |
| 13B-MSP Renesis Engine Explained Against the 13B-REW | The 13B-MSP Renesis and 13B-REW share the same basic two-rotor Wankel layout, yet they were designed for very different purposes. The Renesis powered the Mazda… |