Bloco de cilindro FAW J6P: O guia definitivo de 4 núcleos para a base do mecanismo

Bem-vindo a esta desconstrução especializada do Bloco de cilindro FAW J6P, o componente principal (P/N 1002014-36D) for the engine in the FAW Jiefang CA3250P66K2L1T1E 6×4 caminhão despejando. This is not just a part; é o “bedrock” of the powertrain. O “lógica” do Bloco de cilindro 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.

O “design logic” deste específico Bloco de cilindro FAW J6P is centered on extreme durability and long-term serviceability. The engineering (as implied by related assemblies) points to a “forro molhado” 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 “como novo” specifications multiple times, drastically extending its service life. Uma falha no Bloco de cilindro 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, e gerentes de peças de frota. We will deconstruct the entire 15-component group associated with the bare Bloco de cilindro FAW J6P. Iremos analisar o “Crankshaft Support” lógica (the caps, parafusos, and pins), o “Camshaft Support” lógica (the set of 11 bushes), e o crítico “Foundry Sealing” lógica (the various plugs and seals that make the casting watertight and oil-tight). This is the definitive analysis of the Bloco de cilindro FAW J6P essencial.

Essencial 1: O “Estrutural & 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 Bloco de cilindro 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 (Por exemplo, block and bedplate) design or different variants. Assuming this is the main block, isso é “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 “andando” under the immense load of diesel combustion.

Isso é “fluid logic” is equally complex. It contains a massive “jaqueta de água” (the internal passages for coolant) that surrounds the cylinder bores, and a separate, de alta pressão “oil gallery” system that is drilled through the block to deliver oil to the crankshaft main bearings and up to the cylinder head. O “machining logic” disso Bloco de cilindro FAW J6P is its most precise feature: the top “convés” is milled perfectly flat to seal the head gasket, e o “main bores” are line-bored to a tolerance of ten-thousandths of an inch to ensure the crankshaft spins perfectly.

Essencial 2: O “Crankshaft Support” Lógica (Componentes 12, 13, 14, 15)

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

1. Componentes: ‘Main bearing cap’ (1002011-36D) & ‘Rear main bearing cap’ (1002012-36D)
Este é o “containment logic.” The crankshaft rests in the “saddles” do Bloco de cilindro FAW J6P. These ‘Main bearing caps’ (Comp. 13) are the other half that “bonés” the crankshaft, creating a perfect circle for the bearings. Deles “precision logic” é crítico: these caps are machined *while bolted to the block* (line-boring). This means Cap 1 *only* fits in Position 1, Boné 2 in Position 2, etc., and they must face the correct direction. The ‘Rear main bearing cap’ (Comp. 12) is special, as it is larger and also holds the main “impulso” bearings that control the crankshaft’s front-to-back movement (fim do jogo).

2. Componentes: ‘Main bearing bolt’ (1002013-36D) & ‘Dowel pin’ (Q5210612)
Este é o “alignment and clamping” lógica. The ‘Dowel pins’ (Comp. 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’ (Comp. 14), also 14, provide the “lógica de fixação.” Estes não são parafusos padrão; eles são de alta resistência, torque para rendimento (TTY) fixadores. 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 “andando” sob carga. This is a safety-critical part of the Bloco de cilindro FAW J6P conjunto.

Essencial 3: O “Camshaft Support” Lógica (Componentes 3, 4, 8)

Este motor é um “cam-em-bloco” (OHV) projeto, meaning the camshaft is mounted inside the Bloco de cilindro FAW J6P. This group’s logic is to support that rotating shaft.

Componentes: ‘Front/Intermediate/Rear camshaft bush’ (1006024A29D, 1006028A29D, 1006029A29D)
Este é o “sacrificial bearing” lógica. The camshaft doesn’t ride directly on the cast iron of the block. Em vez de, it rides on these “bushes” (ou “cam bearings”). These are soft-metal sleeves that are “pressed” into the bores of the Bloco de cilindro FAW J6P. Deles “lógica” é duplo: 1) They provide a soft, low-friction surface for the camshaft to rotate on. 2) Eles são “sacrificial.” If oil starvation occurs, the soft bush will be destroyed, saving the much more expensive camshaft and Bloco de cilindro FAW J6P de danos. A lista de peças exige 1 ‘Front’ (Comp. 3), 5 ‘Intermediate’ (Comp. 4), e 5 ‘Rear’ (Comp. 8) bushes, totalizando 11, which suggests a complex or multi-shaft system (Por exemplo, camshaft and balance shaft) are all supported within the Bloco de cilindro FAW J6P.

Essencial 4: O “Foundry Sealing & Utilitário” Lógica (Todos os outros)

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

1. O “Coolant Jacket” Lógica: ‘Bowl plug’ (Q72240, Q72224)
These are commonly called “freeze plugs.” Deles “lógica” is to seal the large, circular holes (Comp. 6, 10) in the side of the Bloco de cilindro 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. O “Oil Gallery” Lógica: ‘Hex head plug’ (Q/WC3413-1994) & ‘Copper gasket’ (Q/WC3403-1994)
The main oil gallery is drilled from the front to the rear of the block. Esse “plugue” (Comp. 1) is a high-pressure, threaded bolt. Isso é “lógica” is to permanently seal the end of that oil gallery. The ‘Copper gasket’ (Comp. 2) is a soft, one-time-use seal that crushes to create a perfect, de alta pressão, oil-tight seal. Additional plugs like ‘Oil seal plug’ (Comp. 7) and ‘Plug-cylinder block’ (Comp. 9) serve similar functions for other fluid passages, garantindo a integridade do Bloco de cilindro FAW J6P.

3. O “Utilitário” Lógica: ‘Lifting eyebolt’ (1002021-29D)
Este componente “lógica” is purely for service. O Bloco de cilindro FAW J6P (and the full engine) is incredibly heavy. These two ‘Lifting eyebolts’ (Comp. 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 Bloco de cilindro FAW J6P.

FAW J6P Cylinder Block Parts List & Especificações

A tabela a seguir fornece o completo, detalhamento de todos 15 component types associated with the bare Bloco de cilindro FAW J6P para o FAW Jiefang CA3250P66K2L1T1E 6×4 caminhão despejando.

Especificações principais

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