- Ciudad de ChangChun, Provincia de Jilin, Porcelana
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Welcome to this critical technical guide on the Conjunto de carcasa delantera FAW. This is the complete “front cover” y “timing gear case” assembly for the FAW Jiefang CA4251P66K24T1A3E5 6×4 diesel semi-trailer tractor. This component is the structural face of the engine.
El Conjunto de carcasa delantera FAW is a complex, precision-machined casting that performs multiple vital functions. It covers and seals the engine’s entire timing gear train, provides the mounting points for numerous critical accessories (like the fuel pump and power steering pump), and contains the passages for oil and coolant.
This in-depth guide is an essential resource for professional engine technicians and parts managers. We will deconstruct the entire Conjunto de carcasa delantera FAW into its 24 serviceable components, including bearing covers, bomba de aceite, oil cooler piping, and the vast array of seals and fasteners required for a leak-free engine.
The heart of the Conjunto de carcasa delantera FAW is the ‘Front housing with steel wire sleeve set assy’ (1701015-A2V). This is the main structural casting, typically made from high-grade aluminum to save weight. This is not just a “cover”; it is a load-bearing component that adds to the engine’s overall rigidity.
Its primary function is to create a sealed “case” that encloses the engine’s entire timing gear train (as detailed in assembly 16). This case contains the high-velocity “splash” of oil that lubricates the timing gears, preventing it from leaking and protecting the gears from road dust and water.
El “steel wire sleeve set” (P.EJ., Helicoil) designation is a critical quality feature. It means the aluminum casting has been pre-fitted with hardened steel thread inserts. This is vital for all the accessory mounting bolts, as it prevents the soft aluminum threads from stripping during service, ensuring a secure, high-torque mount for the life of the Conjunto de carcasa delantera FAW.
El Conjunto de carcasa delantera FAW provides the mounting and sealing for several critical shafts that pass through it. The ‘Cover-first shaft rear bearing’ (1701141-A7G) and its ‘Gasket’ (1701142-A7G) are a key sub-assembly. This is the main “cap” that bolts to the *inside* of the front housing, securing the large input shaft bearing (see assembly 143) in its bore.
Similarmente, the ‘End cap-intermediate shaft front bearing’ (1701028-A9P) is the “cap” that seals and secures the front bearing of the transmission’s counter-shaft (see assembly 144). These bearing caps are not interchangeable and are precision-machined.
El Conjunto de carcasa delantera FAW also houses the ‘Bushing-shift fork shaft’ (1701013-A9P). This is a bronze bushing pressed into the housing, which supports the end of a shift rail from the “tapa superior” asamblea (see assembly 153). These bearing supports are what ensure all the transmission’s internal shafts are held in perfect, parallel alignment.
El Conjunto de carcasa delantera FAW is not just a case; it is an active part of the engine’s lubrication system. The ‘Oil pump assembly’ (1707840-A6V) is mounted *to* (or *in*) this housing, driven by a gear on the crankshaft. This assembly is the “heart” of the transmission’s own oil system, drawing fluid from the sump and force-feeding it to all the gears and bearings.
This system also includes the ‘Oil pipe assembly’ (1701435-A6V), ‘Oil spray pipe assembly’ (1701450-A2V), and ‘Intake oil pipe assembly’ (1701420-A2V). These are the “arteries” of the Conjunto de carcasa delantera FAW. They are rigid pipes that route the pressurized oil from the pump to specific, critical locations, such as spraying a constant jet of oil onto the main gear-mesh points and into the bearings.
El Conjunto de carcasa delantera FAW also has service ports, such as the ‘Cover-outer observation hole’ (1601042-A2K) (the clutch inspection port) and its ‘Gasket’ (1601041-A2K), which are bolted to the front. These integrated oil-handling features make the Conjunto de carcasa delantera FAW a highly complex and critical component.
El Conjunto de carcasa delantera FAW must be perfectly sealed. This is accomplished by a large number of specialized fasteners and seals.
**Fasteners:** The entire assembly is secured with dozens of high-tensile ‘Hex flange bolts’ (Q1841030S, Q1840816, Q1841035S, Q1841050S, Q18410110S, Q1841230). The flange head and “S” type (o “t” type) designation indicate they are high-strength, vibration-resistant fasteners. ‘Hex head bolts’ (CQ1500616, CQ1501512S) and ‘Stud bolts’ (CQ1211640) are used in specific, high-load areas.
**Plugs & Seals:** The ‘Hollow dowel screw’ (1701442-A2V) and ‘Hollow bolt’ (1701440-A2V, 1701442-A2V) are “banjo” perno, used to connect the oil lines while allowing fluid to flow through them. They are sealed with ‘Gasket rings’ (1701415-A2V). The ‘Hydraulic pneumatic O-ring rubber seal’ (CQ7343236B) provides a critical seal for a high-pressure connection, likely for the oil pump or a sensor.
The ‘Hex nuts’ (CQ34008, CQ34116) and ‘Spring gaskets’ (Q40306, Q40405) are used to secure the stud bolts. This comprehensive hardware set is what ensures the Conjunto de carcasa delantera FAW can contain high-pressure oil and withstand constant engine vibration.
The following table provides the complete, detailed breakdown of all 24 components identified in the ‘Front Housing Assembly’ diagram for the FAW CA4251P66K24T1A3E5 tractor. Este Conjunto de carcasa delantera FAW is the structural and logical hub of the transmission.
| Mark | Número de pieza. | Nombre de la pieza | Cantidad |
|---|---|---|---|
| 1 | CQ1500616 | Hex head bolt | 2 |
| 2 | Q40306 | Spring gasket | 2 |
| 3 | 1601042-A2K | Cubrir – outer observation hole | 1 |
| 4 | 1601041-A2K | Empaquetadora – outer observation hole cover | 1 |
| 5 | 1701015-A2V | Front housing with steel wire sleeve set assy | 1 |
| 6 | 1701028-A9P | End cap – intermediate shaft front bearing | 1 |
| 7 | Q1841030S | Hex flange bolt, coarse rod (Tipo estándar) | 10 |
| 8 | 1701415-A2V | Gasket-hollow bolt | 6 |
| 9 | 1701435-A6V | Conjunto de tubería de aceite | 1 |
| 10 | 1701440-A2V | Perno hueco | 1 |
| 11 | 1701442-A2V | Hollow dowel screw | 1 |
| 12 | 1707831Aa4p | Perno hueco | 3 |
| 13 | 1701141-A7G | Cubrir – cojinete trasero del primer eje | 1 |
| 14 | 1701142-A7G | Empaquetadora – first shaft bearing cap | 1 |
| 15 | Q1841035S | Hex flange bolt, coarse rod (Tipo estándar) | 4 |
| 16 | Q1841050S | Hex flange bolt, coarse rod (Tipo estándar) | 2 |
| 17 | 1707840-A6V | Conjunto de bomba de aceite | 1 |
| 18 | Q18410110S | Hex flange bolt, coarse rod (Tipo estándar) | 4 |
| 19 | 1701013-A9P | Eje de bifurcación de buje | 4 |
| 20 | Q1840816 | Hex flange bolt, coarse rod (Tipo estándar) | 2 |
| 21 | 1701450-A2V | Oil spray pipe assembly | 1 |
| 22 | 1701037-A2K | Dowel pin | 2 |
| 23 | Q1840612 | Hex flange bolt, coarse rod (Tipo estándar) | 1 |
| 24 | 1701420-A2V | Intake oil pipe assembly | 1 |
The specifications for the Conjunto de carcasa delantera FAW are defined by its function as the structural, precision-machined “timing case” y “bell housing” of the transmission. The entire Conjunto de carcasa delantera FAW is a key structural component.
| Vehicle Application | FAW Jiefang CA4251P66K24T1A3E5 6×4 Tractor |
| Component Group | Conjunto de carcasa delantera FAW (Transmisión) |
| Main Housing P/N | 1701015-A2V |
| Common Name | Transmission Front Case / Bell Housing |
| Material (Typical) | Cast Aluminum with Steel Wire Thread Inserts |
| Característica clave | Integrates main shaft and counter-shaft front bearings. |
| Integrated System 1 | Conjunto de bomba de aceite (1707840-A6V) |
| Integrated System 2 | Internal Oil Lubrication Pipes (1701435-A6V, etc.) |
| Inspection Port | 1x Clutch Observation Cover (1601042-A2K) |
| Primary Function | To cover the timing gear train, seal the gearbox, and provide rigid mounting points for shafts and accessories. |
FAW parts, including the Cylinder Block Assembly, are packaged with care to ensure safe delivery. Each component is secured in protective materials to prevent damage during transit. The logistics network guarantees timely shipments worldwide, supporting efficient maintenance operations. Below is an image illustrating the standard packaging for FAW truck parts, showcasing the attention to detail in handling and storage.
This packaging approach minimizes the risk of corrosion or impact damage, ensuring that parts like the FAW Cylinder Block Assembly arrive in perfect condition. Customers can rely on FAW’s logistics for consistent quality and reliability.
FAW es uno de los fabricantes de automóviles más grandes y antiguos de China, con capital registrado de RMB 35.4 mil millones de yuanes y activos totales de RMB 457.83 mil millones de yuanes.
CHINA FAW GROUP CO., LIMITADO. (abreviatura de FAW), anteriormente China First Automobile Works, puede rastrear sus raíces hasta julio 15, 1953, cuando comenzó a construirse su primera planta de ensamblaje. FAW es uno de los fabricantes de automóviles más grandes y antiguos de China, con capital registrado de RMB 35.4 mil millones de yuanes y activos totales de RMB 457.83 mil millones de yuanes.
Ventas globales de camiones pesados en China “cinco seguidos”, ventas de camiones pesados a nivel mundial “seis seguidos”, venta de tractores para 16 años consecutivos líder absoluto en la industria.
