Automobile maintenance could be a major space within the trade of automobile and additionally a significant financial gain to the business. In present, combustion engine maintenance is explicit as an important section in automobile maintenance and also the Valve Lapping method that's subjected during this thesis is finished throughout IC engine maintenance. this way employed in most automobile maintenance businesses for Valve lapping method aren't effective and consume heaps of operating hours.’ Valve lapping Machine’ for combustion Engine could be a machine designed to beat these issues by minimizing the human involvement within the method. The thesis consists of the background in coming up with the machine, methodologies used, results obtained by knowledge analysis so as to optimize the planning and style of the valve lapping machine. lapping is a ma-chinning method within which 2 surfaces area unit rubbed alongside associate abrasive between them, by hand movement or employing a machine. this could take 2 forms. the primary style of lapping(traditionally referred to as grinding), involves rubbing a brittle material like glass against a surface like iron or glass itself (also referred to as the "lap" or grinding tool) with associate abrasive like aluminium oxide, jeweller's ,rouge, optician's rouge, emery, carbide, diamond, etc., between them. The lapping machine Stellite as associate abrasive has been developed and it's been determined that the time needed for getting a particular surface compared to standard methodology is a smaller amount. A lapping machine with suction is developed the suction is connected to the valve manifold that's in grips with the cylinder seat because of the mechanism of rotation in the dextral and anticlockwise direction the operation of lapping is performed. The rotation motion is provided by the utilization of Cam and Follower. A programming board referred to as Arduino is employed to realize the required motion at a specific measure. a correct comparison is formed with manual operations and it's been found that the machine becomes profitable once a breakeven purpose of forty-eight days. The time needed for the lapping of 3-cylinder head Stellite as abrasive is concerning forty-five minutes wherever because it takes concerning an hour for lapping while not using Stellite. roughly ten Cylinder heads are lapped. so, productivity is improved by Stellite as abrasive.