3.0 OMC motor first start after complete Overhaul Omc 3.0 Motor
Omc Cobra 3.0 Engine test run , a crank bolt. How does one rotate a 3.0 omc 1986 model without using the starter. Boat has been sitting a few years and motor is Testing 2.5, 3.0 Mercruiser marine exhaust manifold for cracks. OMC, Volvo too. When I ran it at idle RPMS the engine would stay at 180 degrees but the second that I would get it up to speed (3 or 4,000 RPM's for 25 seconds. Running OMC 3.0L Marine Engine. ...