Uma análise especializada: Suporte de montagem do motor dianteiro FAW para o trator CA4251P66K24T1A3E5

Welcome to this expert-level guide focusing on the Suporte de montagem do motor dianteiro FAW (Parte não. 1001033-92C), a fundamental structural component for the FAW Jiefang CA4251P66K24T1A3E5 6×4 trator semirreboque diesel. This is a critical chassis-side component of the engine suspension system.

Este componente, o Suporte de montagem do motor dianteiro FAW, serves as the immovable foundation upon which the engine’s vibration-damping “almofada macia” Assembléias (analyzed in a separate guide) estão montados. Its sole purpose is to provide a high-strength, rigid connection point directly to the vehicle’s frame.

This technical analysis is designed for chassis technicians, fleet maintenance supervisors, and parts professionals who demand precision. We will deconstruct this assembly into its smallest serviceable units, examining the main bracket and the specific, high-tensile fasteners required for its safe installation.

Core Structural Analysis: The Bracket Itself (1001033-92C)

The primary component in this assembly is the ‘Front Engine Mount Bracket’ (1001033-92C). The parts list specifies a quantity of two, indicating a symmetrical pair for the left and right sides of the engine bay. This component is the non-wearing, static half of the engine mounting system.

This is not a simple piece of metal; it is a heavy-duty structural member, almost certainly manufactured from high-strength cast steel or forged iron. Its design is a feat of engineering, optimized to be as strong and rigid as possible while minimizing weight. It features complex curves and thick flanges designed to withstand the three primary forces acting upon it simultaneously.

Primeiro, it must support the immense static weight of the front half of the powertrain. Segundo, it must act as the primary brace against the engine’s rotational torque, which can be thousands of newton-meters. Terceiro, it must endure the constant, high-frequency vibrations from the diesel engine and the low-frequency, high-impact shocks from the road. O Suporte de montagem do motor dianteiro FAW is the anchor that holds everything in place.

The Role of the Bracket in the Powertrain Suspension System

It is essential to understand where the Suporte de montagem do motor dianteiro FAW (1001033-92C) fits into the complete system. This component serves as the critical intermediary between the truck’s frame and the engine’s active “macio” mounts.

The complete system works in layers. The truck’s chassis frame rail is the foundation. O Suporte de montagem do motor dianteiro FAW bolts directly and rigidly to this frame rail. Its precision-machined face then provides a perfect, solid mounting platform for the ‘Front Suspension Bracket Soft Pad Assembly’ (Por exemplo, part 1001040-92W, as seen in the previous assembly). Esse “almofada macia” assembly is the hydraulic or elastomer mount that isolates vibration. Finalmente, o “almofada macia” assembly bolts to a corresponding bracket on the engine block itself.

Portanto, esse Suporte de montagem do motor dianteiro FAW é o “lado do chassi” componente. Its exact placement, defined by its mounting holes, is critical for the entire powertrain’s alignment. If this bracket were to be installed incorrectly, or if it were to crack or bend, the engine would sit at an improper angle.

This misalignment would have a catastrophic ripple effect across the entire truck. A misaligned engine will cause the cooling fan to hit its shroud, put extreme stress on the radiator hoses, and misalign the exhaust system, causing it to crack. Mais criticamente, it will alter the driveshaft angle (powertrain inclination angle), leading to severe driveline vibration, shudder, and the rapid destruction of U-joints and transmission output shaft bearings. O Suporte de montagem do motor dianteiro FAW é, portanto, a component that must have zero-tolerance for failure.

Chassis-to-Bracket Fasteners (Q1841460T)

The parts list specifies four units of ‘Hex Flange Bolt, Haste Grossa (Tipo padrão)’ (Q1841460T). These four bolts are the critical fasteners that connect the two Suporte de montagem do motor dianteiro FAW units directly to the truck’s chassis. Each bracket (left and right) is likely secured by two of these massive bolts, which pass through the bracket and into threaded holes or nutserts in the frame rail.

Estes são de alta resistência, safety-critical fasteners. O “Flange” projeto, which integrates a washer into the bolt head, is essential for spreading the massive clamping load, preventing the bolt head from “pulling through” or cracking the bracket under extreme torque or shock loads. O “T” suffix on the part number almost certainly denotes a specific high-tensile strength class (Por exemplo, Aula 10.9) and a specialized anti-corrosion coating.

These bolts are subjected to incredible shear forces. When the truck hits a pothole, the entire weight and inertia of the engine is caught by these bolts. They must never be replaced with standard, lower-grade hardware. Using the genuine Suporte de montagem do motor dianteiro FAW fasteners and tightening them to the precise factory torque specification is mandatory for a safe repair.

Mount-to-Bracket Fasteners (Q1841455T)

The second set of fasteners listed are the four ‘Hex Head Flange Bolts’ (Q1841455T). These bolts are used for the next step in the assembly process: securing the ‘Front Suspension Bracket Soft Pad Assembly’ (the rubber/hydro mount) *to* the Suporte de montagem do motor dianteiro FAW.

The use of a different part number (1455T vs 1460T) é deliberado. This bolt is of a different length, and possibly a different thread pitch, specifically engineered for the metal-to-metal connection of the “almofada macia” assembly’s outer steel cage to this chassis bracket. De novo, these are flange-head bolts to ensure a high-strength, vibration-resistant joint that will not loosen over time.

In total, this simple-looking parts list describes a robust system: two brackets, four massive bolts to hold them to the frame, and four more high-tensile bolts to hold the engine’s active mounts. This creates a secure, double-fastened “sanduíche” that ensures the powertrain remains precisely where the engineers intended, protegendo toda Suporte de montagem do motor dianteiro FAW system from failure.

FAW Front Engine Mount Bracket Parts List

A tabela a seguir fornece o completo, detailed breakdown of all components identified in the ‘Front Engine Mount Bracket’ diagrama para o trator FAW CA4251P66K24T1A3E5.

Especificações Técnicas e Contexto de Montagem

As especificações para o Suporte de montagem do motor dianteiro FAW are defined by its role as a core chassis component. It is a non-wearing part designed for maximum strength and rigidity.