Полное руководство: Масляный поддон FAW для трактора CA4251P66K24T1A3E5

Welcome to the complete technical guide for the Масляный поддон FAW (Часть №. 1009010-99С), the critical lubrication reservoir for the FAW Jiefang CA4251P66K24T1A3E5 6×4 дизельный полуприцеп тягач. This assembly is the foundation of the engine’s entire oiling system.

The Масляный поддон FAW is not just a simple container; it is an engineered system designed to safely store, прохладный, 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, крутые уклоны, and sharp turns.

This in-depth guide is a vital resource for professional technicians, менеджеры автопарка, и специалисты по запчастям. Мы разберем всю Масляный поддон FAW assembly into its smallest serviceable units, including the main pan, its complex internal baffling, the gasket, drain plug, и все сопутствующие крепления.

Основной компонент: The Oil Pan Assembly (1009010-99С)

The largest and most significant component is the ‘Oil Pan Assembly’ (1009010-99С). This is the main reservoir that holds the engine’s entire supply of lubricating oil (often 30+ liters in an engine of this size). It is typically manufactured from stamped, deep-draw steel or cast aluminum. A stamped steel Масляный поддон 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.

Дизайн Масляный поддон FAW имеет решающее значение. The “отстойник” 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 Масляный поддон FAW, whether from a road debris impact or a cracked weld, это критический провал. Even a small leak can quickly drain the engine of oil, leading to catastrophic failure of the crankshaft bearings and turbocharger. Структурная целостность Масляный поддон FAW is fundamental to engine health.

Критическая печать: Oil Pan Gasket (1009031-81Д)

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

This part is a high-tech “профиль” прокладка. 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” или “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, виброустойчивый, 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 Масляный поддон FAW.

Internal Baffling: Controlling Oil Surge

The most complex and arguably most important components *within* the Масляный поддон 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, а 30+ liters of oil would “slosh” или “surge” violently, like water in a bucket. If this surge momentarily uncovers the oil pump pickup tube, it will suck air. Этот “oil starvation,” even for a fraction of a second, is fatal to an engine, as it will instantly destroy the bearings.

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

The ‘Turning Baffles’ are likely the “walls” 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 Масляный поддон FAW, controlling the “fore-and-aft” 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” или “rope” in the crankcase. Этот “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 Масляный поддон FAW.

Service and Monitoring Components

The parts list includes the two primary points of service for the Масляный поддон FAW. The ‘Oil dipstick assembly’ (1009070-99С) 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.

Второй, and most frequently used, service point is the ‘Oil pan drain plug’ (1009022-29Д). Это тяжелая работа, threaded bolt located at the absolute lowest point of the Масляный поддон FAW. It is designed to allow for the complete drainage of all used engine oil during a service.

Критически, this plug is sealed by its own ‘Gasket ring’ (CQ72320). Это “раздавить шайбу,” typically made of soft aluminum, медь, or a composite. When the drain plug is tightened, this soft ring “давит” 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. A professional service of the Масляный поддон FAW always includes a new gasket ring.

Система крепления: A Study in Clamping Force

Целостность Масляный поддон FAW seal is entirely dependent on its fastener system. The parts list calls for two different bolts: eight units of ‘Hex flange bolt, грубый стержень’ (Q1841225) и 26 units of ‘Hex flange bolt, грубый стержень’ (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 Масляный поддон FAW is flexible; if fewer bolts were used, the pan would warp between the bolts, создание “scalloped” leak path. The two different part numbers indicate different bolt lengths or diameters, used for specific locations on the pan (НАПРИМЕР., where it passes over the main bearing cap seals).

Эти “фланец” 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 (НАПРИМЕР., 18-25 N · m) in a precise, многоступенчатый, crisscross pattern to ensure the Масляный поддон FAW seats correctly.

FAW Oil Pan Parts List

В следующей таблице представлена ​​полная, detailed breakdown of all components identified in the ‘Oil Pan’ схема трактора FAW CA4251P66K24T1A3E5. Этот список необходим для любой службы Масляный поддон FAW.

Технические характеристики и контекст сборки

Технические характеристики Масляный поддон FAW are defined by its function as a high-capacity, structural oil reservoir with an advanced internal baffling system.