One other observation....as I was bleeding the lines after replacing the injectors, noticed the front cylinder had considerably less volume coming out of the injector fitting than the rear cylinder. Could this cause improper or no atomization leading to a drip? If so, do I get the injector pump rebuilt?
Sounds logical if the injection fuel pipes were bothed loosened the same amount to bleed. Probably be worth having a shop test the pump the reinstal and check injection pump timing. On my Yanmar you need to shim the pump to set the timing.