Pistão FAW J6P & Biela: Desconstruindo 11 Peças críticas para uma potência perfeita

Bem-vindo a esta desconstrução especializada do Pistão FAW J6P and Connecting Rod assembly. This is the heart of the engine for the FAW Jiefang CA3250P66K2L1T1E 6×4 caminhão despejando.

This is not a simple set of parts; é um “Montagem Lógica” engineered to perform the single most critical task in the engine: converting the violent, high-pressure explosion of diesel combustion into smooth, rotational power.

O “lógica” of this assembly is a perfect partnership. O Pistão FAW J6P (Comp. 10) é o “escudo,” enduring the heat and force. A biela de conexão (Comp. 5) é o “braço,” transferring that force to the crankshaft.

O “Combustion Logic” disso Pistão FAW J6P (P/N 1004011-630-0000F) is its most advanced feature. It is not a flat-top piston; it features a complex “tigela” projeto. This bowl is a precision-engineered combustion chamber, designed to create a “redemoinho” e “tombar” in the compressed air. When fuel is injected, this swirl logic ensures a perfect, instantaneous air-fuel mixture, leading to a more complete, more powerful, and cleaner combustion. This design is what gives the Pistão FAW J6P its reputation for efficiency and power.

This technical guide is an essential resource for engine rebuilders, machine shop technicians, e gerentes de peças de frota. We will deconstruct the entire 11-component group into its four primary “lógica” sistemas: o “Lógica de Selagem” (the piston rings), o “Pivô & Transfer Logic” (the rod, alfinete, and retainers), o crítico “Hydrodynamic Bearing Logic” (the rod bearings), e o “Critical Fastener Logic” (the high-tensile rod bolts). Este é o guia completo para o Pistão FAW J6P and rod assembly.

Essencial 1: O “Combustion & Selagem” Lógica (Componentes 1, 2, 3, 10)

Este grupo forma o “face” of combustion. Its logic is to harness the explosion while creating a near-perfect gas and oil seal.

1. Componente: ‘Piston’ (1004011-630-0000F)
Este é o componente principal (Comp. 10). O Pistão FAW J6P is made from a high-strength, low-expansion aluminum alloy. Isso é “Lógica Térmica” is an internal, elenco “cooling gallery.” Engine oil is sprayed up from the block, fills this gallery, and carries heat away from the piston crown, preventing it from melting under the load of a heavy-duty diesel.

2. O “Pacote de anéis” Lógica (Componentes 1, 2, 3)
O “Lógica de Selagem” do Pistão FAW J6P is handled by its three-part “ring pack.”

• ‘First compression ring’ (1004012-36D): Este é o “firewall.” Its logic is to contain the 2000+ PSI of combustion pressure. It is often “Keystone” (wedge) shaped to prevent it from sticking in the groove.
• ‘Second compression ring’ (1004013-36D): Este é o “secondary seal” ou “scraper.” Its logic is to catch any pressure that leaks past the first ring and to begin scraping excess oil *down* the cylinder wall.
• ‘Oil ring assy’ (1004030-36D): Este é o “Lógica de controle de óleo.” Este é um complexo, multi-piece ring (Comp. 3). Its logic is to scrape the vast majority of oil off the cylinder wall on the downstroke, leaving only a microscopic film for lubrication. Failure of this ring is the primary cause of blue smoke (oil burning) and high oil consumption. This ring pack is critical to the function of the Pistão FAW J6P.

Essencial 2: O “Pivô & Transfer” Lógica (Componentes 4, 5, 9, 11)

Este grupo forma o “braço” that connects the Pistão FAW J6P para o virabrequim. Its logic is about transferring immense force while allowing for precise movement.

1. Componente: ‘Fracture-split connecting rod body’ (1004021-36D)
Esse (Comp. 5) is a masterpiece of modern engineering. Isso é “Fracture-Split Logic” é crítico. To install the rod on the crankshaft, o “grande final” must be a two-part cap. Instead of “sawing” the cap, manufacturers *snap* it apart with a high-powered laser or hydraulic press. Esse “fracture” creates a perfectly irregular, 100% unique, matched surface. Esse “lógica” means the cap can *never* shift side-to-side, which is a common failure point in older, “machined-cap” rod designs.

2. O “Pivô” Lógica (Componentes 4, 9, 11)
This sub-assembly connects the Pistão FAW J6P to the rod (Comp. 5).

• ‘Piston pin’ (1004018-630-0000Z): Esse (Comp. 11) is the hardened steel “alfinete de pulso” that forms the pivot.
• ‘Connecting rod small end bush’ (1004024-630-0000): Esse (Comp. 4) é o “Sacrificial Pivot Logic.” This bronze sleeve is pressed into the “final pequeno” da biela. The piston pin floats inside it. This bush is the “item de desgaste,” saving the expensive connecting rod from damage.
• ‘Retaining ring 45’ (GB893.1-1986 45): Este é o “Containment Logic.” A lista pede 12 (Comp. 9), ou 2 per Pistão FAW J6P. Esses “circlips” snap into grooves inside the piston itself, preventing the ‘Piston pin’ from sliding sideways and gouging the cylinder wall.

Essencial 3: O “Hydrodynamic Bearing” Lógica (Componentes 6, 7)

Este grupo “lógica” is to allow the connecting rod to spin at thousands of RPM on the crankshaft *without ever touching it*. Este é o “Lógica Hidrodinâmica” central to all modern engines.

Componentes: ‘Connecting rod upper bearing’ (1004026-36D) & ‘Lower bearing’ (1004028-36D)
The connecting rod “grande final” floats on a microscopic film of high-pressure oil. These ‘bearings’ (Comp. 6 & 7) are the precision, multicamadas, soft-metal shells that are engineered to hold this oil film. Deles “Lógica Sacrificial” means they are the “wear item.” If any debris (carbon, metal) gets in the oil, it will embed in the soft bearing, saving the hardened, expensive crankshaft from scratches.

O “Load Logic” is also key. The ‘Upper bearing’ (Comp. 6), which sits in the main rod body, takes the full, enorme, downward force of the Pistão FAW J6P‘s combustion stroke. The ‘Lower bearing’ (Comp. 7), in the cap, takes the high-RPM “whipping” force on the other strokes. They are engineered differently to handle these specific, opposing loads.

Essencial 4: O “Fixador Crítico” Lógica (Componente 8)

This final component is arguably the single most stressed fastener in the entire engine. Isso é “lógica” is to provide a massive, unyielding clamping force.

1. Componente: ‘Connecting rod bolt’ (1004023A29D)
A lista pede 12 parafusos (Comp. 8), two for each of the six connecting rods. Estes são os “Clamping Force Logic.” They must handle two forces: o “empurrar” from the combustion stroke (which tries to crush the bearings) e o “puxar” from the high-RPM exhaust stroke (which tries to rip the cap off).

Estes são “Torque para rendimento” (TTY) parafusos. Deles “lógica” é que eles são projetados para serem apertados até um ponto específico onde *se esticam permanentemente*. This stretching action turns the bolt into a high-tension spring, providing a perfectly consistent clamping force that the “fratura-divisão” boné (Comp. 5) requires to stay locked in place. This is why they are *single-use*. Once stretched, they are compromised and MUST be replaced any time the Pistão FAW J6P or rod assembly is serviced.

Pistão FAW J6P & Connecting Rod Parts List & Especificações

A tabela a seguir fornece o completo, detalhamento de todos 11 tipos de componentes identificados neste Pistão FAW J6P and Connecting Rod assembly for the FAW Jiefang CA3250P66K2L1T1E 6×4 caminhão despejando.

Especificações principais

As especificações para o Pistão FAW J6P and Rod Assembly are defined by its function as the core of the engine’s rotating assembly.