Polea FAW J6P: Deconstruyendo la lógica de 4 partes para una unidad accesoria impecable

Bienvenidos a este análisis experto de la Polea FAW J6P (N/P 1005046-36D), the core of the Front-End Accessory Drive (FEAD) sistema para el FAW Jiefang CA3250P66K2L1T1E 6×4 camión volcado.

This component is not a standalone part; it is a critical piece of the “Crankshaft Logic Assembly,” which also includes the ‘Silicone oil damper’ (1005190-36D).

El “lógica” del Polea FAW J6P es doble: it must transfer rotational power from the crankshaft to all engine accessories (like the alternator and water pump), and it must survive the engine’s most destructive force—torsional vibration.

El “Torsional Logic” is the key to this entire assembly. A heavy-duty diesel engine does not spin smoothly; it fires in six violent “golpes” per cycle. This creates a destructive twisting and untwisting force on the crankshaft. This vibration, if unmanaged, will shred the serpentine belt and destroy the bearings in the alternator and water pump. This is why the Polea FAW J6P (compensación 2) is not bolted directly to the crank; it is bolted *to* the ‘Silicone oil damper’ (compensación 3). The damper and pulley work as a single, tuned unit. El Polea FAW J6P es el “interfaz” for the belt, and the damper is the “absorber” for the vibration.

Esta guía técnica es un recurso esencial para los técnicos de chasis., engine specialists, and parts managers seeking to understand the complete front-end drive system. Although the master parts list (9) includes the entire crankshaft, we will deconstruct the four *primary* components of the “Front-End Logic” relevant to the Polea FAW J6P: el “Accessory Drive Logic” (the pulley itself), el “Lógica de amortiguación NVH” (the silicone oil damper), el critico “Lógica de sellado” (the front oil seal), y el “Lógica de sujetadores” (the specialized damper bolts).

Centro 1: El “Accessory Drive” Lógica (Componente 2)

Este es el componente principal de la Polea FAW J6P sistema, the part that makes physical contact with the serpentine belt.

1. Componente: ‘Multi-groove belt pulley – cigüeñal’ (1005046-36D)
este componente (compensación 2) es el “Power Take-Off Logic.” Its sole function is to transfer the rotational energy of the crankshaft to the engine’s “accessories”—the water pump (for cooling), the alternator (for electricity), the A/C compressor, and the power steering pump. El “multi-groove” (o “serpentina”) design is a modern, high-efficiency logic. It uses a single, ancho, flat belt with multiple “V” grooves, which provides a much larger contact patch for grip, reduces slippage, and lasts significantly longer than older, multiple V-belt systems.

El “Material & Balance Logic” de esto Polea FAW J6P también es crítico. It is made from heavy-duty, nodular cast iron and is “dynamically balanced” en la fábrica. This means it is weighted to spin perfectly true, with zero “tambalearse” (sin). Un desequilibrado Polea FAW J6P would cause intense vibration, which would quickly destroy the serpentine belt and, más importante, the internal bearings of the accessories it drives, leading to premature water pump or alternator failure.

Centro 2: El “Amortiguación NVH” Lógica (Componentes 1, 3)

This group is the essential partner to the Polea FAW J6P. Es “lógica” is to absorb the destructive torsional vibrations from the crankshaft.

1. Componente: ‘Silicone oil damper’ (1005190-36D)
Este (compensación 3) es el “Amortiguador armónico” o “Harmonic Balancer.” It is the most critical “Lógica NVH” component on the entire engine. Es “lógica” is to be a tuned “amortiguador” for the crankshaft. It consists of a heavy, exterior “inertia ring” that is separated from the inner “centro” by a layer of thick, viscous silicone fluid. As the crankshaft violently twists and untwists (torsional vibration), the inner hub moves with it. The heavy outer ring resists this change in speed, y el “cizallamiento” of the silicone fluid between them absorbs this violent energy, converting it into harmless heat.

El Polea FAW J6P (compensación 2) bolts directly *to* this damper, not the crank. Este “Lógica de aislamiento” is what saves the pulley and the belt from being destroyed by these vibrations. A failed damper (P.EJ., if the fluid leaks out) will cause a severe, low-RPM vibration and will quickly lead to the failure of the Polea FAW J6P or even a snapped crankshaft.

2. Componente: ‘Damper bolt’ (1005048K29D)
Estos seis (6) perno (compensación 1) son los “Lógica de sujetadores” for the damper. Son de alta resistencia, load-critical fasteners that hold the entire damper and Polea FAW J6P assembly onto the nose of the crankshaft. These bolts are often “Par-a-rendimiento” (TTY) and single-use.

Centro 3: El “Sellando & Internal Drive” Lógica (Componentes 4, 7, 8)

This group manages the “interfaz” between the spinning Polea FAW J6P assembly and the stationary engine block, as well as driving internal components.

1. Componente: ‘Front oil seal’ (1005050-29D)
Este (compensación 4) es el “Dynamic Sealing Logic.” It is a high-temperature, oil-resistant rubber lip seal. Es “lógica” is to be pressed into the engine’s stationary “front cover” while its inner lip rides on a smooth, pulido “manga” on the back of the damper hub. This creates a perfect seal, preventing oil from leaking out of the “front main” of the crankcase. A failure here is a common problem that will sling engine oil all over the Polea FAW J6P and the serpentine belt, causing the belt to slip, squeal, and fail prematurely.

2. Componentes: ‘Crankshaft timing gear’ (1005037-29D) & 'Engranaje impulsor de la bomba de aceite’ (1005039-36D)
These gears (compensación 7 & 8) are located *behind* the damper, on the same crankshaft. Su “lógica” is to drive the engine’s “internals.” The ‘Timing gear’ drives the camshaft (for the valves) and/or the injection pump. The ‘Oil pump drive gear’ drives the engine’s oil pump. They are part of the master “cigüeñal” assembly list that the Polea FAW J6P belongs to.

Centro 4: El “Master Assembly” Contexto (Componentes 6, 12, 13)

Para entender completamente el Polea FAW J6P‘s role, it is essential to see its place in the “maestro” asamblea. The parts list provided is for the entire crankshaft group, from front to back.

1. Componente: ‘Crankshaft’ (1005014-36D)
Este (compensación 6) es el “Spine Logic.” El Polea FAW J6P and damper bolt to the “front nose” of this forged steel shaft. The ‘Crankshaft’ is the central component that carries power from all six pistons.

2. Componente: 'Volante’ (1005121-630-0000)
Este (compensación 12) es el “Lógica de inercia,” located at the *opposite* end of the crankshaft from the Polea FAW J6P. Its massive weight stores rotational energy to smooth out the engine’s pulses and provides the friction surface for the clutch.

3. Componente: 'Perno del volante’ (1005071K29D)
These ten (10) perno (compensación 13) son los “Rear Fastener Logic.” They secure the flywheel to the rear flange of the crankshaft. Like the damper bolts, these are single-use TTY bolts. Understanding this full assembly—from the Polea FAW J6P at the front to the flywheel at the back—is key to proper engine service.

Polea FAW J6P & Crankshaft Assembly Parts List

La siguiente tabla proporciona la información completa, desglose detallado de todos 14 component types in the master crankshaft assembly, which includes the Polea FAW J6P, Para FAW Jiefang CA3250P66K2L1T1E 6×4 camión volcado.

Especificaciones principales

Las especificaciones para el Polea FAW J6P are defined by its function as the power take-off for the engine’s front-end accessory drive.