La guía completa: Cárter de Aceite FAW para el Tractor CA4251P66K24T1A3E5

Welcome to the complete technical guide for the Cárter de aceite FAW (Número de pieza. 1009010-99C), the critical lubrication reservoir for the FAW Jiefang CA4251P66K24T1A3E5 6×4 tractor semirremolque diésel. This assembly is the foundation of the engine’s entire oiling system.

El Cárter de aceite FAW is not just a simple container; it is an engineered system designed to safely store, Frío, and manage the engine’s oil supply. It ensures that the oil pump pickup is constantly submerged, even under the extreme conditions of heavy hauling, steep grades, and sharp turns.

This in-depth guide is a vital resource for professional technicians, administradores de flotas, y especialistas en repuestos. Deconstruiremos todo Cárter de aceite FAW montaje en sus unidades útiles más pequeñas, including the main pan, its complex internal baffling, the gasket, drain plug, and all associated fasteners.

Componente central: The Oil Pan Assembly (1009010-99C)

The largest and most significant component is the ‘Oil Pan Assembly’ (1009010-99C). This is the main reservoir that holds the engine’s entire supply of lubricating oil (a menudo 30+ liters in an engine of this size). It is typically manufactured from stamped, deep-draw steel or cast aluminum. A stamped steel Cárter de aceite FAW offers excellent durability against impacts, while a cast aluminum pan (which this likely is, given the complex internal structure) offers superior rigidity and heat dissipation.

El diseño de la Cárter de aceite FAW es critico. El “sump” is the lowest, deepest part of the pan, designed to collect the oil and provide a deep, stable reservoir for the oil pump pickup tube. The entire pan also acts as a passive oil cooler; the hot oil returning from the engine spreads across the pan’s large surface area, and the airflow underneath the truck helps dissipate heat, maintaining the oil’s viscosity and lifespan.

A damaged Cárter de aceite FAW, whether from a road debris impact or a cracked weld, es un fallo critico. Even a small leak can quickly drain the engine of oil, leading to catastrophic failure of the crankshaft bearings and turbocharger. La integridad estructural del Cárter de aceite FAW is fundamental to engine health.

The Critical Seal: Oil Pan Gasket (1009031-81D)

The ‘Oil Pan Gasket’ (1009031-81D) is the single component responsible for creating a leak-proof seal between the Cárter de aceite FAW and the engine block’s “bed plate” o “skirt.” In modern diesel engineering, this is no longer a simple cork or paper gasket.

This part is a high-tech “profile” empaquetadora. It is typically constructed as a rigid steel carrier plate, which has been stamped into the exact shape of the pan’s rail. A high-grade, oil-resistant elastomer (like silicone or FKM) is then precision-molded onto this carrier, with raised “beads” that trace the bolt holes and the perimeter.

This design is vastly superior to older gasket types. The steel carrier prevents the gasket from “squeezing out” o “extruding” when the 34 pan bolts are tightened. The molded elastomer beads provide a concentrated, high-pressure seal with minimal clamping force, ensuring a durable, vibration-resistant, and leak-free joint. This gasket is a single-use item; once it has been compressed, it must be replaced to guarantee a proper seal when servicing the Cárter de aceite FAW.

Internal Baffling: Controlling Oil Surge

The most complex and arguably most important components *within* the Cárter de aceite FAW are its baffles. A 6×4 tractor is subjected to immense G-forces: hard acceleration, heavy braking, and high-G turns. Under these conditions, el 30+ liters of oil would “slosh” o “surge” violently, like water in a bucket. If this surge momentarily uncovers the oil pump pickup tube, it will suck air. Este “oil starvation,” even for a fraction of a second, is fatal to an engine, as it will instantly destroy the bearings.

Este Cárter de aceite FAW features a complex, multi-part baffling system to prevent this. The parts list calls for four ‘Turning Baffles’ (1009026-81D), two ‘Front Intermediate Baffles’ (1009023-81D), and two ‘Rear Intermediate Baffles’ (1009024-81D). This total of eight internal plates creates a “trap” o “maze” around the oil sump.

The ‘Turning Baffles’ are likely the “paredes” that form a box around the sump. They feature small, one-way “trap doors” that allow oil to flow *in* to the sump easily, but prevent it from sloshing *out* during a turn. The ‘Intermediate Baffles’ are plates that run along the length of the Cárter de aceite FAW, controlling the “adelante y atrás” slosh that occurs during braking and acceleration.

These baffles also serve a second function as a “windage tray.” The crankshaft, spinning at thousands of RPM, acts like a giant whisk, creating an oil “cloud” o “rope” in the crankcase. Este “windage” robs the engine of power (parasitic loss) and can overwhelm the piston’s oil control rings. These baffles are positioned to strip this oil from the air, allowing it to drain calmly back into the sump. The design of this baffling system is a key engineering feature of the Cárter de aceite FAW.

Service and Monitoring Components

The parts list includes the two primary points of service for the Cárter de aceite FAW. The ‘Oil dipstick assembly’ (1009070-99C) is the only component used for monitoring the oil level. This assembly includes the dipstick itself (a long, flexible metal blade), the tube it sits in, and the O-ring seal on its handle to prevent crankcase pressure from escaping.

el segundo, and most frequently used, service point is the ‘Oil pan drain plug’ (1009022-29D). Este es un trabajo pesado, threaded bolt located at the absolute lowest point of the Cárter de aceite FAW. It is designed to allow for the complete drainage of all used engine oil during a service.

Critically, this plug is sealed by its own ‘Gasket ring’ (CQ72320). Este es un “lavadora de aplastamiento,” typically made of soft aluminum, cobre, or a composite. When the drain plug is tightened, this soft ring “crushes” to form a perfect, liquid-tight seal against the pan. This gasket is a single-use item. Re-using an old, work-hardened gasket ring is the #1 cause of a leaking drain plug. Un servicio profesional del Cárter de aceite FAW always includes a new gasket ring.

El sistema de sujeción: A Study in Clamping Force

La integridad de la Cárter de aceite FAW seal is entirely dependent on its fastener system. The parts list calls for two different bolts: eight units of ‘Hex flange bolt, varilla gruesa’ (Q18412225) y 26 units of ‘Hex flange bolt, varilla gruesa’ (Q1840820).

This massive quantity of **34 bolts** is necessary to provide perfectly uniform clamping pressure along the entire perimeter of the gasket. The long, thin rail of a stamped steel or cast aluminum Cárter de aceite FAW is flexible; if fewer bolts were used, the pan would warp between the bolts, creando un “scalloped” leak path. The two different part numbers indicate different bolt lengths or diameters, used for specific locations on the pan (P.EJ., where it passes over the main bearing cap seals).

Estos “brida” bolts are critical. The integrated washer head spreads the clamping force over a wide area, preventing the bolt head from cracking the pan’s flange or crushing the gasket unevenly. These bolts must be tightened to a low, specific torque (P.EJ., 18-25 Nuevo Méjico) in a precise, multietapa, crisscross pattern to ensure the Cárter de aceite FAW seats correctly.

FAW Oil Pan Parts List

La siguiente tabla proporciona la información completa, detailed breakdown of all components identified in the ‘Oil Pan’ diagrama para el tractor FAW CA4251P66K24T1A3E5. This list is essential for any service of the Cárter de aceite FAW.

Especificaciones técnicas y contexto de montaje.

Las especificaciones para el Cárter de aceite FAW are defined by its function as a high-capacity, structural oil reservoir with an advanced internal baffling system.