Mazda RX-8 Aisin AZ6 (Part 1) | Full Gearbox Disassembly & Engineering Analysis

In this episode, I perform a complete teardown of the Aisin AZ6 gearbox from a Mazda RX-8, following a precise engineering-based approach with full measurement and documentation. This video covers: step-by-step mechanical disassembly, custom-made SST tool fabrication for gear removal, axial and radial run-out measurements, inspection of bearings and synchronizers, cleaning and restoration of the gearbox housing, organizing all components for reassembly. The project aims to document the entire mechanical structure and tolerances of the Aisin AZ6, providing detailed insight for rebuilders and enthusiasts. Coming next (Part 2) - Reassembly, adjustment, and installation in the RX-8. Chapters 00:00 Intro 00:17 External Teardown 06:54 SST Tool Fabrication 09:31 Pressing out 6th Gear 12:08 Internal Teardown 16:06 Parts Overview 18:30 Case Components Disassembly 20:24 Parts Restoration 26:57 Bearing Removal 30:31 Runout Measurement 34:25 Gear Removal 37:00 Synchronizer Measurement 41:03 Final Disassembly