484Q-10-270T
Product Details
Comprehensive Professional Description: Haima S7 Engine Repair Kits (Part No. 484Q-10-270T)
1. Basic Overview & Core Functional Positioning
The 484Q-10-270T is an authentic Original Equipment Manufacturer (OEM) engine repair kit, exclusively engineered and produced for the Haima S7, a mid-size SUV under Haima Automobile that gained widespread recognition for its robust performance, spacious interior, and adaptability to both urban commuting and light off-road scenarios. Unveiled as a facelifted version at the 2013 Shanghai Auto Show, the Haima S7 is equipped with the core HM484Q-T turbocharged engine, and the 484Q-10-270T Engine Repair Kit serves as a comprehensive, all-in-one solution designed to address engine wear, restore performance, and extend the service life of the S7’s powertrain. Unlike individual replacement parts, this repair kit integrates all critical components required for major engine maintenance and repair, ensuring compatibility, consistency, and optimal performance—making it an indispensable tool for professional automotive repair technicians and Haima S7 owners who prioritize reliability and long-term vehicle value.
As a core maintenance component for the Haima S7’s 1.8T turbocharged engine (HM484Q-T), the 484Q-10-270T Engine Repair Kit plays a pivotal role in maintaining the engine’s structural integrity and operational efficiency. The HM484Q-T engine is a high-performance powertrain, delivering 188 horsepower (138 kW/rpm) and a maximum torque of 230 Nm at 1800-4500 rpm, with a 1795 cc displacement, 4-cylinder 16-valve configuration, and electronic fuel injection (EFI) system. Operating under high pressure, high temperature, and constant mechanical stress—characteristic of turbocharged engines—this powertrain requires precise, high-quality components to withstand harsh operating conditions. The 484Q-10-270T kit is tailored to meet the exact engineering specifications of the HM484Q-T engine, ensuring that every component integrates seamlessly with the existing engine system, restores optimal performance, and prevents premature failure.
The unique part number 484Q-10-270T serves as a definitive identifier, guaranteeing strict compliance with Haima’s original design standards, material requirements, and performance benchmarks. This kit is the only authorized OEM repair solution for the Haima S7’s 1.8T engine, compatible with all production years of the S7 equipped with the HM484Q-T powertrain. Whether addressing routine wear, fixing minor malfunctions, or conducting major engine overhauls, the 484Q-10-270T kit provides all the necessary components in one package, eliminating the need for separate part sourcing, reducing repair time, and ensuring that all parts work in perfect harmony. Unlike generic aftermarket repair kits, which often include mismatched or low-quality components, the genuine 484Q-10-270T kit preserves the Haima S7’s original engine performance, fuel efficiency (ranging from 6.2-10.8 L/100km depending on driving conditions), and reliability, making it the preferred choice for professional repairs and DIY enthusiasts alike.
2. Premium Material Selection & Precision Manufacturing Process
The 484Q-10-270T Engine Repair Kit is crafted from high-performance, automotive-grade materials, carefully selected to meet the rigorous demands of the Haima S7’s turbocharged engine. Each component in the kit undergoes strict material testing to ensure superior durability, corrosion resistance, wear resistance, and compatibility with the engine’s operating environment—including high temperatures (up to 200°C), high pressure, and constant exposure to engine oil and fuel. The material selection is optimized to balance structural strength, flexibility, and thermal stability, ensuring that each part can withstand the harsh conditions of turbocharged engine operation while maintaining performance over the long term.
Key components in the 484Q-10-270T kit feature premium materials tailored to their specific functions. The piston rings, a critical component for maintaining cylinder compression and preventing oil leakage, are made of high-strength ductile iron with a chrome-plated surface, enhancing wear resistance and reducing friction. The connecting rod bearings and main bearings are constructed from high-grade copper-lead alloy, which offers excellent load-bearing capacity and thermal conductivity, ensuring smooth operation even under high pressure. The gasket set (including cylinder head gasket, intake manifold gasket, and exhaust manifold gasket) is made of high-temperature resistant multi-layer steel (MLS) and nitrile rubber (NBR), providing superior sealing performance, oil resistance, and heat resistance—critical for preventing leaks in the turbocharged engine’s high-pressure environment.
Additional components, such as the valve stem seals, are made of high-temperature resistant fluororubber (FKM), which can withstand temperatures up to 250°C, ensuring a tight seal between the valve stem and cylinder head, preventing oil from entering the combustion chamber. The timing chain (where applicable) is made of high-strength alloy steel, with a surface treatment to enhance wear resistance and reduce noise. All fasteners (bolts, nuts, washers) included in the kit are made of high-tensile steel, with a zinc-plated or galvanized surface to prevent corrosion and ensure secure attachment.
The manufacturing process of the 484Q-10-270T Engine Repair Kit follows a strict, ISO 9001 and IATF 16949 certified production workflow, consistent with Haima’s global quality standards and modern automotive component manufacturing practices. Each component undergoes precision machining, heat treatment, and surface finishing to ensure dimensional accuracy and performance. For example, piston rings are precision-machined to a tolerance of ±0.005 mm, ensuring a perfect fit with the cylinder walls. Bearings are precision-ground to a smooth surface finish (Ra ≤ 0.2 μm), reducing friction and extending service life. Gaskets are manufactured using advanced stamping and bonding techniques, ensuring uniform thickness and consistent sealing performance.
Before assembly into the kit, each component undergoes rigorous quality inspection, including dimensional accuracy testing, material composition analysis, hardness testing, and leakage testing. Only components that meet Haima’s strict quality standards are included in the 484Q-10-270T kit. Additionally, the kit is assembled in a clean, controlled environment to prevent contamination, ensuring that all components are free of dirt, debris, and defects. Each kit is packaged in OEM-standard packaging, with protective padding to prevent damage during transportation, and includes a detailed installation manual and quality guarantee certificate.
3. Structural Composition & Key Integrated Components
The 484Q-10-270T Engine Repair Kit is a comprehensive package that includes all critical components required for engine repair and maintenance, meticulously designed to cover the core wear points of the Haima S7’s HM484Q-T turbocharged engine. The kit’s structural composition is optimized to address common engine issues, including piston wear, bearing degradation, gasket leakage, valve stem seal failure, and timing system wear. Each component is engineered to match the exact dimensions and specifications of the original engine parts, ensuring seamless integration and optimal performance. The key integrated components of the 484Q-10-270T kit include the following:
First, the piston and piston ring set. The kit includes four high-precision pistons (one for each cylinder of the 4-cylinder HM484Q-T engine), each made of high-strength aluminum alloy with a ceramic coating on the piston crown to enhance heat resistance and reduce carbon deposits. The piston rings include compression rings (top and second) and oil control rings, designed to maintain optimal cylinder compression, prevent combustion gas leakage, and control oil consumption. The compression rings feature a chrome-plated surface for wear resistance, while the oil control rings have a multi-layer design to ensure efficient oil scraping.
Second, the bearing set, which includes connecting rod bearings and main bearings. The connecting rod bearings are designed to support the connecting rods, reducing friction between the connecting rod and crankshaft journal. The main bearings support the crankshaft, ensuring smooth rotation and distributing the engine’s load evenly. Both types of bearings are made of high-grade copper-lead alloy with a lead-tin overlay, providing excellent lubrication and wear resistance, and are precision-machined to match the crankshaft’s journal dimensions.
Third, the full gasket set, which is a critical component for preventing leaks in the engine. The set includes the cylinder head gasket, intake manifold gasket, exhaust manifold gasket, valve cover gasket, oil pan gasket, and various smaller gaskets and seals (such as camshaft seals and crankshaft seals). The cylinder head gasket is a multi-layer steel (MLS) gasket, designed to withstand the high pressure and temperature of the turbocharged engine, ensuring a tight seal between the cylinder head and engine block. The other gaskets are made of high-temperature resistant rubber and composite materials, tailored to their specific sealing locations.
Fourth, the valve train components, including valve stem seals, valve springs, and valve guides (where applicable). The valve stem seals are made of high-temperature fluororubber, ensuring a tight seal between the valve stem and cylinder head, preventing oil from entering the combustion chamber and reducing oil consumption. The valve springs are made of high-strength alloy steel, designed to maintain proper valve timing and prevent valve float at high engine speeds. The valve guides are made of cast iron or bronze, providing a smooth surface for the valve stems to slide through, reducing wear and ensuring precise valve movement.
Fifth, the timing system components, which may include a timing chain (or timing belt), timing chain tensioner, and timing guides. The timing chain is made of high-strength alloy steel, designed to maintain precise valve timing, which is critical for the turbocharged engine’s performance and efficiency. The timing chain tensioner ensures that the chain remains properly tensioned, preventing slack and noise, while the timing guides reduce friction and wear on the chain. Additionally, the kit includes all necessary fasteners, such as cylinder head bolts, connecting rod bolts, and timing cover bolts, all of which are high-tensile steel and torque-rated to Haima’s specifications.
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