Thought injector pump was wrong model.
Previous owner had bought replacement pump and could not get engine running.
Removed timing cover and found injector pump drive gear was off by 2 teeth.
No sheared keys or missing teeth were found.
Timed gear train correctly, reassembled timing cover and related parts with new gaskets.
Tractor cranked right up after bleeding injector lines.
Photo shows timing train in correct position.
