Ensemble de bloc-cylindres FAW J6P: La déconstruction ultime à 4 cœurs

Bienvenue dans cette déconstruction experte du Ensemble de bloc-cylindres FAW J6P, numéro de pièce 1002015-36D. This is the absolute foundation of the engine for the FAW Jiefang CA3250P66K2L1T1E 6×4 tombereau. C'est “logique” is to be the central chassis of the powertrain, containing the forces of combustion, housing the crankshaft, and providing the rigid backbone for the entire engine. Ce Ensemble de bloc-cylindres FAW J6P is the bedrock of the powertrain.

Le “logique de conception” de ce spécifique Ensemble de bloc-cylindres FAW J6P is centered on durability and serviceability. C'est un “wet liner” bloc moteur (see Comp 12, ‘Cylinder liner’). Ce “logique de facilité d'entretien” is critical for heavy-duty applications, as it allows the cylinder walls to be replaced, enabling multiple “in-frame” rebuilds. This component is the bedrock; a failure here is a failure of the entire engine. The strength of the Ensemble de bloc-cylindres FAW J6P est primordial.

Ce guide technique est une ressource essentielle pour les reconstructeurs de moteurs, techniciens de flotte, et gestionnaires de pièces. We will deconstruct the entire 27-component group, breaking it down into its four primary “logique” systèmes: le “De construction & Scellage” Logique (the block and liners), le “Prise en charge rotationnelle” Logique (bearings and seals), le “Logement & Interface” Logique (covers and flywheel housing), et la critique “Alignement & Attache” Logique. Ceci est le guide complet du Ensemble de bloc-cylindres FAW J6P.

Cœur 1: Le “De construction & Scellage” Logique (Composants 7, 11, 12)

This group forms the absolute core of the Ensemble de bloc-cylindres FAW J6P. It defines the engine’s architecture, durabilité, and primary fluid containment.

1. Composant: ‘Cylinder block assy’ (1002015-36D)
This is the primary component (Comp 7). C'est “logique de fonderie” is immense strength. Cast from high-grade iron alloy, it features extensive internal ribbing to prevent flexing under load. C'est “logique fluide” est un complexe, coulé “jacket” of coolant passages that surround the cylinders, and a separate “gallery” of passages that deliver high-pressure oil to the crankshaft and cylinder head. Le “machining logic” is its precision: le “pont” (top surface) is milled perfectly flat to seal against the head gasket, et le “principal” bores (for the crankshaft) are line-honed for perfect alignment. Tout cela Ensemble de bloc-cylindres FAW J6P is the reference point for all other parts.

2. Composants: ‘Cylinder liner’ (1002016-36D) & ‘O-ring seal-cylinder liner’ (1002017-29D)
C'est le “serviceability logic.” C'est un “wet liner” bloc, meaning the ‘Cylinder liner’ (Comp 12) est un séparé, replaceable sleeve that is in direct contact with engine coolant. Le “logique matérielle” is superior: the liner is made of a different, centrifugally-cast iron alloy that is exceptionally hard and wear-resistant (for the piston rings), while the main Ensemble de bloc-cylindres FAW J6P (Comp 7) is designed for structural strength. The ‘O-ring seals’ (Comp 11) are the most critical seals in the engine. Leur “logique d'étanchéité” is to use multiple rings to create a watertight barrier, preventing high-pressure coolant from leaking into the oil sump, which would be a catastrophic failure. This wet-liner design means the engine can be “rebuilt” plusieurs fois, a vital feature for a heavy-duty Ensemble de bloc-cylindres FAW J6P.

Cœur 2: Le “Prise en charge rotationnelle” Logique (Composants 2, 3, 4, 5)

Ce groupe “logique” is to allow the crankshaft to rotate at thousands of RPM with minimal friction while remaining perfectly sealed. This is a primary function of the Ensemble de bloc-cylindres FAW J6P.

1. Composants: ‘Upper main bearing’ (1002034-36D) & ‘Lower main bearing’ (1002035-36D)
Ce sont les “hydrodynamic” logic components. The crankshaft never physically touches the Ensemble de bloc-cylindres FAW J6P. Plutôt, il “flotte” on a microscopic film of high-pressure oil. The ‘Main bearings’ (Comp 4 & 5) are the precision-made, soft-metal shells that support this oil film. Leur “sacrificial logic” means they are designed to be the “porter un article.” If any debris contaminates the oil, il s'encastrera dans le roulement souple, protecting the far more expensive crankshaft and block from damage. Le “supérieur” coquille (Comp 5), placed in the block, takes the primary combustion force.

2. Composants: ‘Crankshaft front oil seal seat’ (1002055-29D) & 'Joint’ (1002056-29D)
C'est le “étanchéité dynamique” logique. Where the crankshaft “exits” the front of the Ensemble de bloc-cylindres FAW J6P to drive the accessory belts, it must be sealed. The ‘Oil seal seat’ (Comp 2) is the precision-machined housing that bolts to the block. C'est “logique” is to hold the (not-listed) rubber oil seal in perfect concentricity with the shaft. Le « Joint »’ (Comp 3) fournit le “static sealing” logique, creating a leak-proof join between the ‘seat’ and the flat face of the block. This entire sub-system is crucial to the Ensemble de bloc-cylindres FAW J6P.

Cœur 3: Le “Logement & Interface” Logique (Comp 9, 10, 16, 17, 21, 24, 26)

The bare Ensemble de bloc-cylindres FAW J6P is just the start. Ce groupe de composants “closes” the block and allows it to interface with other systems.

1. Le “Interface” Logique: ‘Gear housing cover’ (1002076-36D) & ‘Gear housing cover-flywheel housing’ (1002061-59D)
These are the large, critical castings that define the front and rear of the engine. The ‘Gear housing’ (Comp 16, 17) bolts to the front of the Ensemble de bloc-cylindres FAW J6P. C'est “logique” is to cover the complex timing gear train, provide mounting points for accessories (like the injection pump), and seal the front of the engine. The ‘Flywheel housing’ (referenced by Comp 17, 23, 24, 26) bolts to the rear. C'est “logique” is even more critical: it precisely aligns the entire engine with the transmission, and it provides the mounting point for the starter motor.

2. Le “Service & Inspection” Logique: ‘Cover plate-camshaft chamber’ (1002092-29D) & 'Joint’ (1002096-29D)
C'est le “facilité d'entretien” logique. The camshaft and valve lifters are located inside the main Ensemble de bloc-cylindres FAW J6P (this is a cam-in-block engine). These ‘Cover plates’ (Comp 9) are removable panels. Leur “logique” is to provide technicians with access to inspect and service the valvetrain components without removing the entire engine. Les « Joints »’ (Comp 10) are essential for sealing the oil inside this chamber.

3. Le “Diagnostic & Fluide” Logique: (Comp 21, 24, 26)
These small parts serve critical functions. The ‘Gasket-turbocharger oil return’ (Comp 21) a un “fluid return logic,” allowing hot oil from the turbo to drain back into the oil sump, which is located below the Ensemble de bloc-cylindres FAW J6P. The ‘Pointer’ (Comp 24) and ‘Plug’ (Comp 26) sont les “diagnostic logic.” The ‘Pointer’ aligns with a mark on the flywheel, allowing a technician to set the engine’s timing. The ‘Plug’ (or inspection cover) allows for visual confirmation of the flywheel’s position.

Cœur 4: Le “Alignement & Attache” Logique (Le matériel)

Ce dernier groupe “logique” is to ensure perfect alignment and provide the immense clamping force needed to hold the engine together against vibration and combustion pressure. This is a critical support system for the Ensemble de bloc-cylindres FAW J6P.

1. Le “Alignement” Logique: ‘Dowel pin’ (Q5210826, Q5211232, Q5211020)
Bolts are *not* used for alignment. That is the “logique” of the ‘Dowel pins’ (Comp 6, 13, 14). Ceux-ci sont durcis, precision-ground steel pins. They are pressed into the Ensemble de bloc-cylindres FAW J6P and interface with matching holes in components like the flywheel housing or cylinder head. Leur “logique” is to ensure perfect, sub-millimeter alignment *before* the bolts are tightened. This prevents misalignment that would destroy seals and bearings.

2. Le “Serrage” Logique: « Boulon à bride hexagonale’ (Multiple) & ‘Double-ended stud’ (1002043-29D)
C'est le “force de serrage” logique. The system uses a high quantity of ‘Hexagon flange bolts’ (Comp 1, 8, 15, 19, 27). Le “flange logic” is that the built-in washer distributes the clamping load, preventing the bolt head from cracking the casting. The ‘Double-ended studs’ (Comp 18, 22, 23) are used for high-stress, high-heat areas like the flywheel housing. Le “logique de haras” is superior for this: it provides more accurate torque, reduces wear on the Ensemble de bloc-cylindres FAW J6P‘s threads, and better manages thermal expansion. This hardware is vital to the integrity of the Ensemble de bloc-cylindres FAW J6P.

FAW J6P Cylinder Block Assembly Parts List & Caractéristiques

Le tableau suivant fournit l'intégralité, ventilation détaillée de tous 27 types de composants identifiés dans le Ensemble de bloc-cylindres FAW J6P Pour le FAW Jiefang CA3250P66K2L1T1E 6×4 tombereau.

Spécifications de base

Les spécifications pour le Ensemble de bloc-cylindres FAW J6P are defined by its function as the structural foundation of the engine.