Tightened preoiler fittings and attached oil line hoses. Oil lines are prefabricated brown silicone impregnated firesleeve hose ordered from Herber Aircraft (310-322-9575). These hoses are lifetime hoses. Fabricated #6 fuel line from mechanical pump return to an AN fitting through the firewall. Started fabrication 3/8 inch aluminum line from fitting inside firewall to sump tank