The efficiency, power, and fuel economy of main engines and diesel generators are directly dependent on the condition of the most critical components in the combustion chamber: the piston, exhaust valve, and seat. The slightest wear or deformation on these parts, which operate under high temperature and pressure, can lead to serious performance losses, increased fuel consumption, and even major engine damage. At İntermak, we provide both reliable and cost-effective solutions for your engines by reconditioning or remanufacturing these critical parts to Original Equipment Manufacturer (OEM) standards.

• Assessment and Disassembly: The process begins with a detailed preliminary inspection of the damaged or service-expired pistons, exhaust valves, and seats received at our facility. The parts are visually and structurally evaluated by our expert team to determine if they are suitable for the reconditioning process. This initial assessment defines the roadmap for the repair procedure to be applied and shapes the most efficient solution to be presented to the customer.
• Analysis and Component Inspection: Carbon and other deposits on the parts’ surfaces are completely removed using special chemical and mechanical methods. Subsequently, NDT (Non-Destructive Testing) procedures are applied to detect invisible surface and internal structural cracks. For exhaust valves and seats, dye penetrant (PT) or magnetic particle (MT) tests are generally used. The wear and deformation rates of all critical surfaces are clearly determined by comparing high-precision micrometric measurements against the original manufacturer’s tolerances.
• Repair and Assembly: Based on the analysis results, the repair and reconditioning process begins. The worn sealing surfaces of exhaust valves and seats are rebuilt using special hard-facing materials (e.g., Stellite) and are then precision-machined on CNC-controlled grinding machines to their original profile and angle. Piston ring grooves are cleaned and restored to their correct dimensions. For parts that are beyond repair, remanufacturing is carried out from the highest quality materials in accordance with their technical drawings.