IMHO timing the TRactor engine whether static or with the strobe light is
best accomplished by getting it somewhere near, then making little
adjustments with the vernier until you can just get pre-ignition using full
throttle at 2000rpm or so in top gear.
You can get it near to 4 degrees static by jacking up one back wheel, then
turning it in top gear (which is an easy way to turn the engine in either
direction) taking up the backlash by rotating the road wheel forward until
the hole in the pulley is about 1/2" short of the pointer on #1 cylinder
compression stroke. Then with your vernier adjustment in the middle and the
distributor clamping screw loose, and the points correctly gapped, with the
aid of a timing light fiddle around till you just have the points breaking.
Clamp it and go out on the road.
Hope this does'nt offend too many purists!
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