Continental and Lycoming Engines by Powermaster ®

The majority of the engines we build are Superior Engines. When you select Powermaster to build your engine, we perform the following operations: All components are manufactured or refurbished to new limit tolerances. All FAA Airworthiness Directives and mandatory OEM Service Bulletins are complied with. Crankcase: Magnaflux and Ultrasonic inspected. Journals micro-polished. Counterweight bushings, rollers, plates, and retaining rings replaced with new parts and components. Cadmium plated front flange. Dynamically balance with all gears and counterweights installed. Connecting Rods: Magnaflux inspected. New bushings installed in upper end. Honed on centers to insure exact length on all rods. Balanced in total, crank-end and piston-end weights. Gears: Magnaflux inspected. Backlash checked and certified. Crankcase: Cleaned of all coatings. Zyglow inspected for cracks and imperfections. All cylinder deck studs removed. Weld repairs performed as required. Mating surfaces machined and matched. Crankshaft bore centered in case relative to cylinder decks, honed to final new part dimensions. Camshaft bore in case relative to cylinder decks, honed to final new part dimensions. All oil passages cleaned and de-burred. All cylinder deck studs replaced with new cadmium plated studs. Studs installed using Locktite and torque plate. Crankcase certified. Rocker Arms: Magnaflux inspected. New single-piece rocker bushing installed and cut to size square with rocker edges. Rocker toe refinished and contoured. Camshaft: New Superior Camshaft Installed. Hydraulic Lifters: New high flow lifters installed with matched bleed-down rates installed. Transfer Collar: (if equipped) New transfer collar custom fit to insure proper oil control to propeller. Superior Millennium Cylinders: All cylinders include the following: Custom valve sizing for proper dimensional clearance. Custom piston ring gaping at TDC for proper gap in choke area. 100% new parts installed in cylinder assembly. Cylinder volume tested for conformity between each cylinder at TDC. Cylinders tested for air flow uniformity. Oil Pump: Oil Pump Gears are Magnaflux inspected. Mating surfaces machined and finished. Internal oil passages de-burred and ported for increased flow. Finishes and Coatings: Aluminum components are cleaned, bead blasted and gold Alodine coated. Crankcase and sump are primed and coated with PPG high temp urethane. All metal hardware is stripped, bright cadmium plated and gold iridited. Accessories Included with Overhaul: Starter drive unit (if equipped)- Overhauled and certified. Starter - New starter installed. Fuel Injection System (if equipped) - Replaced with Factory Overhauled unit with new injector lines. Carburetor (if equipped) – Overhauled and certified. Magnetos - New Magnetos Installed. Ignition Harness – New. Spark Plugs – New Assembly: All engines are selectively hand-fit and assembled and inspected. All records of repair and assembly are recorded and provided to customer at delivery. Test runs are completed using test cell with custom break in propellers. All test run information is documented. When installed in aircraft at our facility, aircraft is test flown and performance documented. Log Book: New AD log book is generated for engine upon completion. All Airworthiness Directives and mandatory TCM Service Bulletins are complied with. Warranty: Home | Custom Overhauls | IO-550 Conversions | D'Shannon Baffles | Dynamic Prop Balance Brightwork Polishing | LOP Operations | Photographs | Data Forms | N26PM Photos | Contact Us