The following pictures show the Constant Speed Propeller Governor being mounted to XIO-360 M1B Engine accessory mounting pad. The Accessory Cover Lycoming installed on the Accessory pad was relatively easy to remove, but the gaskets had to be replaced and the housing cleaned. I also installed new/modified oil cooler lines above the Propeller Control Unit. I tried for nearly 10 hours to install these and the Constant Speed PropellerGovernor with the Oil Filter unit installed but couldn’t get a wrench onto the last bolt. It was much easier after removing the Oil Filter.