Bloque de cilindros FAW J6P: La guía definitiva de 4 núcleos para la base del motor

Bienvenidos a esta experta deconstrucción del Bloque de cilindros FAW J6P, el componente central (P/N 1002014-36D) for the engine in the FAW Jiefang CA3250P66K2L1T1E 6×4 camión volcado. This is not just a part; es el “bedrock” of the powertrain. El “lógica” del Bloque de cilindros FAW J6P is to be the structural chassis of the engine, containing combustion forces, housing the crankshaft, and providing the rigid backbone and all fluid passages.

El “design logic” de este específico Bloque de cilindros FAW J6P is centered on extreme durability and long-term serviceability. The engineering (as implied by related assemblies) points to a “wet liner” compatible design, meaning the cylinder walls themselves are replaceable. This is a critical feature for heavy-duty applications, allowing the engine to be rebuilt to “like-new” specifications multiple times, drastically extending its service life. Un fracaso en el Bloque de cilindros FAW J6P is the most catastrophic engine failure possible, which is why its material science and manufacturing precision are paramount.

This technical guide is an essential resource for engine rebuilding specialists, heavy-duty technicians, y gerentes de repuestos de flotas. We will deconstruct the entire 15-component group associated with the bare Bloque de cilindros FAW J6P. Analizaremos el “Crankshaft Support” lógica (the caps, perno, and pins), el “Camshaft Support” lógica (the set of 11 bushes), y el critico “Foundry Sealing” lógica (the various plugs and seals that make the casting watertight and oil-tight). This is the definitive analysis of the Bloque de cilindros FAW J6P centro.

Centro 1: El “Estructural & Fluid” Lógica (Componente 11)

This entire component group is centered around the main casting itself. This is the heart of the engine’s structure and the core of the Bloque de cilindros FAW J6P.

1. Componente: ‘Cylinder block’ (1002014-36D)
This is the primary component. The parts list shows a quantity of two (2), which may indicate a two-part (P.EJ., block and bedplate) design or different variants. Assuming this is the main block, es “foundry logic” is absolute strength. It is cast from a high-grade, high-nickel iron alloy, featuring extensive internal ribbing and thick “main webs” (the sections that hold the crankshaft) to prevent the block from flexing or “caminando” under the immense load of diesel combustion.

Es “fluid logic” is equally complex. It contains a massive “water jacket” (the internal passages for coolant) that surrounds the cylinder bores, and a separate, alta presión “oil gallery” system that is drilled through the block to deliver oil to the crankshaft main bearings and up to the cylinder head. El “machining logic” de esto Bloque de cilindros FAW J6P is its most precise feature: the top “cubierta” is milled perfectly flat to seal the head gasket, y el “main bores” are line-bored to a tolerance of ten-thousandths of an inch to ensure the crankshaft spins perfectly.

Centro 2: El “Crankshaft Support” Lógica (Componentes 12, 13, 14, 15)

This group of components has one logic: to secure the engine’s crankshaft in the Bloque de cilindros FAW J6P with perfect alignment and immense clamping force.

1. Componentes: ‘Main bearing cap’ (1002011-36D) & ‘Rear main bearing cap’ (1002012-36D)
Este es el “containment logic.” The crankshaft rests in the “saddles” del Bloque de cilindros FAW J6P. These ‘Main bearing caps’ (compensación 13) are the other half that “gorras” the crankshaft, creating a perfect circle for the bearings. Su “precision logic” es critico: these caps are machined *while bolted to the block* (line-boring). This means Cap 1 *only* fits in Position 1, Tapa 2 in Position 2, etc., and they must face the correct direction. The ‘Rear main bearing cap’ (compensación 12) is special, as it is larger and also holds the main “empuje” bearings that control the crankshaft’s front-to-back movement (finalizar el juego).

2. Componentes: ‘Main bearing bolt’ (1002013-36D) & 'Pasador’ (Q5210612)
Este es el “alignment and clamping” lógica. The ‘Dowel pins’ (compensación 15), with a quantity of 14 (two for each of the 7 main caps), provide the “alignment logic.” Their job is to ensure the cap is perfectly aligned side-to-side *before* the bolts are tightened. The ‘Main bearing bolts’ (compensación 14), also 14, provide the “clamping logic.” Estos no son tornillos estándar.; they are high-tensile, par a rendimiento (TTY) sujetadores. Their logic is to stretch slightly when torqued, acting like a high-tension spring to provide a massive, consistent clamping force that prevents the caps from “caminando” under load. This is a safety-critical part of the Bloque de cilindros FAW J6P asamblea.

Centro 3: El “Camshaft Support” Lógica (Componentes 3, 4, 8)

Este motor es un “cam-in-block” (OHV) diseño, meaning the camshaft is mounted inside the Bloque de cilindros FAW J6P. This group’s logic is to support that rotating shaft.

Componentes: ‘Front/Intermediate/Rear camshaft bush’ (1006024A29D, 1006028A29D, 1006029A29D)
Este es el “sacrificial bearing” lógica. The camshaft doesn’t ride directly on the cast iron of the block. En cambio, it rides on these “bushes” (o “cam bearings”). These are soft-metal sleeves that are “pressed” into the bores of the Bloque de cilindros FAW J6P. Su “lógica” es doble: 1) They provide a soft, low-friction surface for the camshaft to rotate on. 2) Ellos son “sacrificial.” If oil starvation occurs, the soft bush will be destroyed, saving the much more expensive camshaft and Bloque de cilindros FAW J6P from damage. La lista de piezas requiere 1 ‘Front’ (compensación 3), 5 ‘Intermediate’ (compensación 4), y 5 ‘Rear’ (compensación 8) bushes, totalizando 11, which suggests a complex or multi-shaft system (P.EJ., camshaft and balance shaft) are all supported within the Bloque de cilindros FAW J6P.

Centro 4: El “Foundry Sealing & Utility” Lógica (All Others)

Este grupo final “lógica” is to seal all the “holes” left from manufacturing and to provide service access. A bare Bloque de cilindros FAW J6P casting is full of passages for sand (from casting), refrigerante, and oil (from drilling).

1. El “Coolant Jacket” Lógica: ‘Bowl plug’ (Q72240, Q72224)
These are commonly called “freeze plugs.” Su “lógica” is to seal the large, circular holes (compensación 6, 10) in the side of the Bloque de cilindros FAW J6P that were necessary to remove the internal sand core after casting. They are simply hammered in to create a watertight seal for the coolant jacket.

2. El “Oil Gallery” Lógica: 'Tapón de cabeza hexagonal’ (Q/WC3413-1994) & 'Junta de cobre’ (Q/WC3403-1994)
The main oil gallery is drilled from the front to the rear of the block. Este “enchufar” (compensación 1) is a high-pressure, threaded bolt. Es “lógica” is to permanently seal the end of that oil gallery. La 'junta de cobre’ (compensación 2) es un suave, one-time-use seal that crushes to create a perfect, alta presión, oil-tight seal. Additional plugs like ‘Oil seal plug’ (compensación 7) and ‘Plug-cylinder block’ (compensación 9) serve similar functions for other fluid passages, ensuring the integrity of the Bloque de cilindros FAW J6P.

3. El “Utility” Lógica: ‘Lifting eyebolt’ (1002021-29D)
Este componente “lógica” is purely for service. El Bloque de cilindros FAW J6P (and the full engine) is incredibly heavy. These two ‘Lifting eyebolts’ (compensación 5) are load-rated, high-strength steel bolts that are screwed into the block. They provide a safe and balanced attachment point for an engine crane or hoist, allowing for safe removal and installation of the Bloque de cilindros FAW J6P.

FAW J6P Cylinder Block Parts List & Presupuesto

La siguiente tabla proporciona la información completa, desglose detallado de todos 15 component types associated with the bare Bloque de cilindros FAW J6P Para FAW Jiefang CA3250P66K2L1T1E 6×4 camión volcado.

Especificaciones principales

The specifications for the bare Bloque de cilindros FAW J6P are defined by its function as the structural foundation of the engine.