Austin Service & Repair Manuals - Wiring Diagrams Austin Service Journal Cars volume 24, supplied to distributers tracking changes in production, servicing and documentation during the period of Healey 100 production. Also covers other cars in the Austin range. Austin Service Journal TR6 Overdrive Wiring Questions - britishcarforum Apr 02, 2019Thanks for the wiring diagram. I had the tranny out and it is now back in the car and I rewired it according to this diagram which makes sense when I look at the diagram but for some reason the solenoid is always energized with o/d switch turned on meaning that the overdrive will engage in reverse if I am not careful.
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