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Rotary Engines

Every 12, 500 miles or 12 months, clean and check ventilation valve and system.

Fig 1: Crankcase Ventilation System (Piston Engine)
G09309999Courtesy of MAZDA MOTORS CORP.
Fig 2: Crankcase Ventilation Valve (RX7 Rotary Engine)
G09310000Courtesy of MAZDA MOTORS CORP.