- Joined
- Tuesday September 24, 2013
- Location
- UK
I suspect it was due to wear on the Machinery..It would have been cheaper just to replace the Tap size & just carry on when their was wear & tear..Quite Pragmatic..Motorcycle manufactures used to do the same when things wore out..It was common practice in the Old Days..
Billy
Very informative answer, would have had no idea that was manufacturing practice at the time. Bet the factory manager at the time never thought his quick fix would be stumping people over half a century later! LOL