Блок цилиндров FAW J6P: The Ultimate 4-Core Guide to the Engine’s Foundation

Welcome to this expert deconstruction of the Блок цилиндров FAW J6P, the core component (P/N 1002014-36D) for the engine in the FAW Jiefang CA3250P66K2L1T1E 6×4 самосвал. This is not just a part; это “bedrock” of the powertrain. The “логика” принадлежащий Блок цилиндров 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.

The “design logic” of this specific Блок цилиндров 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. Неудача в Блок цилиндров 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, and fleet parts managers. We will deconstruct the entire 15-component group associated with the bare Блок цилиндров FAW J6P. Мы проанализируем “Crankshaft Support” логика (the caps, болты, and pins), а “Camshaft Support” логика (the set of 11 bushes), и критический “Foundry Sealing” логика (the various plugs and seals that make the casting watertight and oil-tight). This is the definitive analysis of the Блок цилиндров FAW J6P core.

Основной 1: The “Структурный & Fluid” Логика (Компонент 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 Блок цилиндров FAW J6P.

1. Компонент: ‘Cylinder block’ (1002014-36Д)
This is the primary component. The parts list shows a quantity of two (2), which may indicate a two-part (НАПРИМЕР., block and bedplate) design or different variants. Assuming this is the main block, его “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 “ходьба” under the immense load of diesel combustion.

Его “fluid logic” is equally complex. It contains a massive “water jacket” (the internal passages for coolant) that surrounds the cylinder bores, and a separate, high-pressure “oil gallery” system that is drilled through the block to deliver oil to the crankshaft main bearings and up to the cylinder head. The “machining logic” of this Блок цилиндров FAW J6P is its most precise feature: the top “deck” is milled perfectly flat to seal the head gasket, и “main bores” are line-bored to a tolerance of ten-thousandths of an inch to ensure the crankshaft spins perfectly.

Основной 2: The “Crankshaft Support” Логика (Компоненты 12, 13, 14, 15)

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

1. Компоненты: ‘Main bearing cap’ (1002011-36Д) & ‘Rear main bearing cap’ (1002012-36Д)
Это “containment logic.” The crankshaft rests in the “saddles” принадлежащий Блок цилиндров FAW J6P. These ‘Main bearing caps’ (Комп 13) are the other half that “caps” the crankshaft, creating a perfect circle for the bearings. Их “precision logic” имеет решающее значение: these caps are machined *while bolted to the block* (line-boring). This means Cap 1 *only* fits in Position 1, Cap 2 in Position 2, и т. д., and they must face the correct direction. The ‘Rear main bearing cap’ (Комп 12) is special, as it is larger and also holds the main “thrust” bearings that control the crankshaft’s front-to-back movement (end play).

2. Компоненты: ‘Main bearing bolt’ (1002013-36Д) & ‘Dowel pin’ (Q5210612)
Это “alignment and clamping” логика. The ‘Dowel pins’ (Комп 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’ (Комп 14), also 14, provide the “clamping logic.” Это не стандартные болты; they are high-tensile, отношение крутящего момента к текучести (телетайп) крепежные детали. 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 “ходьба” under load. This is a safety-critical part of the Блок цилиндров FAW J6P сборка.

Основной 3: The “Camshaft Support” Логика (Компоненты 3, 4, 8)

This engine is a “cam-in-block” (OHV) дизайн, meaning the camshaft is mounted inside the Блок цилиндров FAW J6P. This group’s logic is to support that rotating shaft.

Компоненты: ‘Front/Intermediate/Rear camshaft bush’ (1006024A29D, 1006028A29D, 1006029A29D)
Это “sacrificial bearing” логика. The camshaft doesn’t ride directly on the cast iron of the block. Вместо, it rides on these “bushes” (или “cam bearings”). These are soft-metal sleeves that are “pressed” into the bores of the Блок цилиндров FAW J6P. Их “логика” is twofold: 1) They provide a soft, low-friction surface for the camshaft to rotate on. 2) Они есть “sacrificial.” If oil starvation occurs, the soft bush will be destroyed, saving the much more expensive camshaft and Блок цилиндров FAW J6P from damage. The parts list calls for 1 ‘Front’ (Комп 3), 5 ‘Intermediate’ (Комп 4), и 5 ‘Rear’ (Комп 8) bushes, итого 11, which suggests a complex or multi-shaft system (НАПРИМЕР., camshaft and balance shaft) are all supported within the Блок цилиндров FAW J6P.

Основной 4: The “Foundry Sealing & Utility” Логика (All Others)

This final group’s “логика” is to seal all the “holes” left from manufacturing and to provide service access. A bare Блок цилиндров FAW J6P casting is full of passages for sand (from casting), охлаждающая жидкость, and oil (from drilling).

1. The “Coolant Jacket” Логика: ‘Bowl plug’ (Q72240, Q72224)
These are commonly called “freeze plugs.” Их “логика” is to seal the large, circular holes (Комп 6, 10) in the side of the Блок цилиндров 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. The “Oil Gallery” Логика: ‘Hex head plug’ (Q/WC3413-1994) & ‘Copper gasket’ (Вопрос/WC3403-1994)
The main oil gallery is drilled from the front to the rear of the block. Этот “затыкать” (Комп 1) is a high-pressure, threaded bolt. Его “логика” is to permanently seal the end of that oil gallery. The ‘Copper gasket’ (Комп 2) is a soft, one-time-use seal that crushes to create a perfect, high-pressure, oil-tight seal. Additional plugs like ‘Oil seal plug’ (Комп 7) and ‘Plug-cylinder block’ (Комп 9) serve similar functions for other fluid passages, ensuring the integrity of the Блок цилиндров FAW J6P.

3. The “Utility” Логика: ‘Lifting eyebolt’ (1002021-29Д)
This component’s “логика” is purely for service. The Блок цилиндров FAW J6P (and the full engine) is incredibly heavy. These two ‘Lifting eyebolts’ (Комп 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 Блок цилиндров FAW J6P.

FAW J6P Cylinder Block Parts List & Технические характеристики

В следующей таблице представлена ​​полная, подробная разбивка всех 15 component types associated with the bare Блок цилиндров FAW J6P для FAW Jiefang CA3250P66K2L1T1E 6×4 самосвал.

Основные характеристики

The specifications for the bare Блок цилиндров FAW J6P are defined by its function as the structural foundation of the engine.