CLEAN the RETURN line across the injector tops. Broken pump flex ring bits will plug that line and cause injection pump trouble. This can be confirmed by running until engine begins to fail, then quickly loose the pump timing cover. If engine speeds up/runs OK WITH the fuel leak but slows/dies with cover tight, it's confirmed the RETURN side is restricted/plugged. Also, the EARLY 4AF/5AF pumps are timed at 10 degrees BTDC. The LATE UPDATED 1AJ pumps are timed at 8 degrees BTDC. The original 3010 and 4010 pumps had no speed advance like the 20 series had, but lots were updated years ago.
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Today's Featured Article - Show Coverage: Journey to Ankeny - by Cindy Ladage. We left Illinois on the first day of July and headed north and west for Ankeny, Iowa. Minus two kids, we traveled light with only the youngest in tow. As long as a pool was at the end of our destination she was easy to please unlike the other two who have a multitude of requirements to travel with mom and dad. Amana Colonies served as a respite where we ate a family style lunch that sustained us with more food than could reasonably fit into our ample physiques. The show at Ankeny
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