Initial set, after mag had tripped, to a fraction after TDC (to prevent kick-back) - engine was turned backwards past TDC after mag tripped, then forwards to TDC, for the static set.
When running, designated plug lead was flashed in timing hole near to flywheel to illuminate the timing mark at rated speed.
Timing was then adjusted to optimum for fuels of the day. They often recommended a hat, or similar, was held over the area to improve visibility of the timing marks by reducing the ambient light level.
Just remember those fuels are not available now, so optimum timing may well be changed.
No reason why a modern timing light should not be used instead of the spark flash.
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Today's Featured Article - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
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