M-20 AIR-OIL SEPARATOR

The M-20 Air/Oil Separators for crankcase breathers have set the performance standards for aviation. A simple performance test for any separator is to fill the engine oil to the full mark and take a 2 hour flight. Only with the M-20 will the oil still read full with none blown out on the belly. This difference makes them preferred over all others. Only the M-20 Separators carry FAA approval for all 1600 makes and modelos of certified piston aircraft from 45 hp to 950 hp. They are also applicable to all homebuilts and foreign made aircraft with similar power. No vacuum pump connection is used, since the addition of as little as 1/16 PSI will make a new engine perform like it is run-out. M-20's vent the crankcase pressure and use only gravity for returning the oil. The -A and -B suffix varies only in the direction of the oil return tube. On the -A models the direction is away from the inlet, on the -B towards the inlet. The -A's generally favor Lycoming, Franklin and radials, the -B's favor Continentals. Either may be mounted in-line; the -B may also be firewall mounted since it has a blank side. Typical Airplane Models Part No. Price Buy Model 300-A, 45 to 315 hp 08-00182 $360.00 Model 300-B, 45 to 315 hp 08-00409 $360.00 High Horsepower Airplane Models Part No. Price Buy Model 400XL-A, 315 to 950 hp 08-00413 $420.00 Model 400XL-B, 315 to 950 hp 08-00861 $419.95 Helicopter Models Part No. Price Buy Model 300H-A, 45 to 315 hp 08-00411 $396.00 Model 605Y "Y" fitting The oil returns of both the M-20 Breather separator and the Wet Pump Separator may be combined using the Model 605Y. This "Y" fitting has a venturi for scavenging the drop-by-drop return oil from the breather separator by the stream of oil from the wet pump separator. Model 605Y P/N 08-00862 $24.00