دليل الخبراء: مجموعة حوض الزيت FAW للجرار CA4251P66K24T1A3E5

Welcome to this expert technical guide on the مستنقع النفط FAW (الجزء لا. 1010010-51ب), a component of paramount importance for the lubrication system of the FAW Jiefang CA4251P66K24T1A3E5 6×4 diesel semi-trailer tractor. This is the engine’s primary oil intake.

This component, the مستنقع النفط FAW, is also known as the oil pickup tube. It is the “straw” that the high-volume oil pump uses to draw the entire supply of engine oil from the oil pan. Its correct position, mounting, and sealing are non-negotiable for engine health.

This guide is an essential resource for professional engine technicians, fleet managers, and parts specialists. We will deconstruct the entire مستنقع النفط FAW حَشد, including its main body, its critical gasket, its complex support brackets, and all associated high-tensile fasteners, down to the smallest serviceable unit.

Core Component: The Oil Sump Assembly (1010010-51ب)

The core component of this system is the ‘Oil Sump Assembly’ (1010010-51ب). This is the complete pickup tube unit. The design of the مستنقع النفط FAW is critical. It consists of a large-diameter, pre-bent pipe that is precision-engineered to position its “head” at the absolute lowest point of the oil pan’s sump.

ال “head” of the مستنقع النفط FAW is a wide, bell-mouthed inlet. This inlet is covered by a durable, coarse wire mesh screen. This screen is the engine’s first and most important line of defense against oil-borne debris. Any large foreign objects in the pan (such as gasket fragments, carbon chunks, or metal shavings from wear) are blocked by this screen, preventing them from being sucked into the high-pressure oil pump.

A failure of this screen, or a clog from excessive engine sludge, will starve the engine of oil. The main pipe of the مستنقع النفط FAW connects this pickup head to the oil pump’s intake port, usually located on the engine block’s “bed plate” or on the pump body itself. The entire function of the مستنقع النفط FAW is to provide an uninterrupted, clean, and non-aerated supply of oil to this pump.

The Critical Seal: Gasket-Oil Sump (1010012-53د)

The ‘Gasket-Oil Sump’ (1010012-53د) is the single seal that connects the flange of the مستنقع النفط FAW (1010010-51ب) to the oil pump’s intake port. The importance of this one gasket cannot be overstated.

This gasket is not sealing oil *out*; it is sealing *air* out. The oil pump’s intake is a high-suction (vacuum) area. If this gasket is cracked, improperly installed, or re-used, it will allow the oil pump to suck in air from the crankcase along with the oil. This aerates the oil, turning it into a compressible foam.

Foamy, aerated oil is un-pumpable. It cannot maintain the critical hydrodynamic film in the engine’s bearings. A failure of this one, small gasket will lead to a rapid and catastrophic loss of oil pressure, even if the oil pan is full. This results in the destruction of the crankshaft bearings, الشاحن التوربيني, and camshaft journals. لذلك, this gasket must be replaced any time the مستنقع النفط FAW is unbolted.

Structural Support: Bracket System (1010020-81د & 1010017-51ب)

ال مستنقع النفط FAW pickup tube is a relatively long, rigid pipe. If it were only supported by its main flange, the constant, high-frequency vibration of the diesel engine would quickly cause it to fatigue-crack, typically at the weld near the flange. This would cause it to fall into the oil pan, leading to immediate oil starvation.

To prevent this, a robust support system is essential. This parts list details two key support components for the مستنقع النفط FAW: the ‘Fixed Bracket Assembly’ (1010020-81د) and the ‘Oil Sump Bracket’ (1010017-51ب).

The ‘Fixed Bracket Assembly’ (1010020-81د) is the main brace. It is a heavy-duty stamped steel bracket designed to bolt to a secure point on the engine block’s structure, such as one of the main bearing cap bolts. The other end of this bracket then bolts to the pickup tube, providing a solid, immovable anchor point deep inside the engine.

The ‘Oil Sump Bracket’ (1010017-51ب) serves as a secondary support, likely triangulating the tube from another angle. This dual-bracket system locks the مستنقع النفط FAW in place, holding it perfectly rigid and preventing it from being damaged by vibration or shock. These brackets are a critical part of the مستنقع النفط FAW‘s reliability.

The Complete Fastener System

A vibration-proof assembly is only as good as its fasteners. The list for the مستنقع النفط FAW includes a specific set of hardware. The two ‘Combination Bolt’ (CQ1460840) units are the primary bolts. أ “تركيبة الترباس” has a pre-installed, captive washer (usually a spring-lock washer and a flat washer). These are used to secure the main flange of the مستنقع النفط FAW to the oil pump, with the ‘Gasket-Oil Sump’ (1010012-53د) sandwiched between. The spring washer prevents the bolt from backing out under vibration.

The support brackets are secured with a set of ‘Hex Flange Bolts’ (س1841020, س1840820). The flange-head design integrates the washer, spreading the clamping load and resisting loosening. The list calls for two (س1841020) and two (س1840820) البراغي. This varied set of fasteners is used to bolt the brackets to the engine block and to the مستنقع النفط FAW tube itself.

أخيراً, the single ‘Hex Flange Nut’ (Q039608) indicates that one of the support brackets mounts to a pre-installed stud on the engine block, a common design for high-vibration areas. This nut completes the locking system, ensuring the entire مستنقع النفط FAW assembly remains rigid for the life of the engine.

FAW Oil Sump Parts List

The following table provides the complete, detailed breakdown of all components identified in the ‘Oil Sump’ diagram for the FAW CA4251P66K24T1A3E5 tractor. Any service of the مستنقع النفط FAW requires careful inspection of these parts, especially the gasket and support brackets.

Technical Specifications and Assembly Context

The specifications for the مستنقع النفط FAW are defined by its function as the primary oil intake, which must be rigidly mounted and perfectly sealed against air ingestion. This entire مستنقع النفط FAW system is critical for engine life.