Inside Harley’s Milwaukee-8 Big-Twin – Finally, A Better Oiling System
If Harley’s Twin-Cam powered bikes had an Achilles heel, it was the motor’s oiling system. During the twenty some years that it was produced, a lot of people looked into and worked on this problem. Most of the attention was directed at the oil pump, its pressure relief valve and the mounting plate. Harley’s Screamin’ Eagle performance division, and more than a couple of aftermarket companies, developed hi-volume oil pumps and hi-flow cam plates that featured adjustable oil pressure regulator valves, other companies came up with regulator valve modification kits, some of which worked, while others didn’t. In designing the…continue reading
