فاو J6P الاسطوانة: الدليل النهائي رباعي النواة لأجزائه القابلة للخدمة

Welcome to this definitive technical deconstruction of the فاو J6P الاسطوانة, the core serviceable casting for the engine powering the FAW Jiefang CA3250P66K2L1T1E 6×4 شاحنة تفريغ الديزل.

This is not the *complete* assembly, ولكن “bare head” نفسها (P/N 1003011A59D / 1003011-59د)—the single most complex casting in the powertrain.

ال “منطق” التابع فاو J6P الاسطوانة هو أن يكون “غرفة التحكم” of combustion. It must perform three critical tasks: withstand immense heat and pressure, إدارة كل المحرك “التنفس” (تدفق الهواء), and serve as a complex heat exchanger.

ال “منطق التصميم” من هذا محددة فاو J6P الاسطوانة is centered on durability and, الأهم من ذلك, “serviceability.” This component group is what an engine machine shop would use to rebuild a head. It includes the replaceable “يرتدي” items that are press-fit into the main casting, such as the valve guides and valve seats. A crack or warp in the main فاو J6P الاسطوانة casting is one of the most severe engine failures, as it allows coolant, زيت, and combustion gases to mix, مما يؤدي إلى فشل ذريع. Understanding its serviceable components is therefore essential for any long-term fleet maintenance.

يعد دليل الخبراء هذا مصدرًا أساسيًا لمعيدي بناء المحركات, فنيين ورشة ماكينات, ومديري قطع الغيار. We will deconstruct this entire 10-component type group into its four primary “منطق” أنظمة: ال “Main Casting & الفرامل” منطق (the bare head itself), ال “Valvetrain Interface” منطق (the replaceable guides and seats), الحرجة “Injector Sealing” منطق (copper sleeves and O-rings), و “Foundry Sealing” منطق (the various plugs that make the فاو J6P الاسطوانة casting fluid-tight).

جوهر 1: ال “Main Casting & الفرامل” منطق (عنصر 1)

This component is the structural foundation for this entire group. All other parts are installed *into* this one.

1. عنصر: ‘Cylinder head’ (1003011A59D / 1003011-59د)
هذا هو الشيء الرئيسي فاو J6P الاسطوانة صب. The parts list shows two distinct part numbers, و “منطق” is explicitly stated: واحد (1003011A59D) is for trucks “مع فرامل المحرك,” and the other (1003011-59د) is for trucks “without engine brake.” This is a critical distinction. ال “Engine Brake Logic” of the ‘A59D’ part means the casting has complex, additional oil galleries drilled deep into it. These passages are designed to route high-pressure engine oil to the engine brake (أو “جيك بريك”) نظام, which is housed in the rocker assembly above. ال “non-brake” فاو J6P الاسطوانة lacks these passages and is a simpler, and therefore different, صب.

Both versions share the same “foundry logic,” being cast from a high-strength, temperature-stable iron alloy. هُم “thermal logic” is the intricate “سترة المياه”—a complex, web-like internal passage that allows coolant to circulate aggressively around the two hottest areas: the exhaust valve seats and the fuel injector bores. وهذا يمنع فاو J6P الاسطوانة from warping or cracking under extreme load. ال “منطق تدفق الهواء” من هذا فاو J6P الاسطوانة is in its precision-cast intake and exhaust ports, which are shaped to optimize air “دوامة” for a clean, powerful combustion.

جوهر 2: ال “Valvetrain Interface” منطق (عناصر 8, 9, 10)

This group represents the core “منطق الخدمة” التابع فاو J6P الاسطوانة. هذه هي “يرتدي” surfaces for the valvetrain, and they are designed to be replaceable.

1. عنصر: ‘Valve guide’ (1003014-29د)
القائمة تدعو إلى 24 أدلة (شركات 8), one for each of the 24 الصمامات (12 المدخول, 12 العادم). ال “منطق” of a ‘Valve guide’ is to be a replaceable, low-friction sleeve. ال فاو J6P الاسطوانة casting is iron, but running a hardened valve stem directly in the iron would cause rapid wear. بدلاً من, these guides (often made of a bronze alloy or a different iron composite) نكون “press-fit” into the head. هُم “precision logic” is to hold the valve in perfect alignment, allowing it to seal correctly against the seat. When these wear out, they can be “الضغط” out and replaced, restoring the فاو J6P الاسطوانة ل “مثل الجديد” حالة.

2. عناصر: ‘Intake valve seat’ (1003012-36د) & ‘Exhaust valve seat’ (1003013-36د)
هذا هو “Combustion Sealing Logic.” The valves must seal against a perfectly round, incredibly hard surface. The cast iron of the فاو J6P الاسطوانة is too soft for this. ال “منطق” here is to press-fit two different types of ‘Valve seats’ (شركات 9 & 10) into the head. The ‘Exhaust valve seat’ (شركات 9) is made of a very hard, high-temperature steel alloy (like Stellite) to withstand superheated exhaust gases. The ‘Intake valve seat’ (شركات 10) is also hardened steel, but with different properties as it is cooled by the intake air. هُم “منطق الخدمة” is that they are the “ذبيحة” جزء; they can be re-ground (أ “valve job”) multiple times, and if they wear too much, they can be machined out and replaced, which saves the entire فاو J6P الاسطوانة casting from being scrapped.

جوهر 3: ال “Injector Sealing” منطق (عناصر 3 & 4)

هذه المجموعة “منطق” is to create a perfect, “ختم مزدوج” for the high-pressure fuel injectors. This is a critical task in a modern diesel, sealing both combustion *in* and fluids *out*.

1. عنصر: ‘Injector copper sleeve’ (1003016-29د)
القائمة تدعو إلى 6 الأكمام (شركات 4), one for each injector. هذا المكون “منطق” يكون “combustion sealing” و “heat transfer.” This sleeve is pressed into the bottom of the injector bore in the فاو J6P الاسطوانة. ال “copper logic” is that copper is a soft, malleable metal. It creates a perfect “معجب” seal against the injector tip, منع 2500+ PSI of combustion gas from escaping. It also acts as a vital “تقليل الحرارة,” pulling heat *away* from the delicate injector tip and transferring it into the coolant in the فاو J6P الاسطوانة‘s water jacket. This dual-seal system is a hallmark of a robust, modern diesel engine design.

2. عنصر: "يا الدائري."’ (1003018-29د)
القائمة تدعو إلى 6 حلقات O (شركات 3). هذا هو “fluid sealing logic.” These O-rings sit in a groove higher up on the injector or injector sleeve. هُم “منطق” is to prevent fluids (fuel from the return galley or oil from the valvetrain) from leaking *out* of the engine, and to prevent coolant from leaking *into* the injector bore. A failure of the copper sleeve (شركات 4) leads to combustion in the coolant; a failure of the O-ring (شركات 3) leads to fuel in the oil or an external leak. Both are critical seals for the فاو J6P الاسطوانة.

جوهر 4: ال “Foundry Sealing” منطق (عناصر 2, 5, 6, 7)

هذه المجموعة النهائية “منطق” بسيط: to plug the holes left by the manufacturing process. A complex casting like a فاو J6P الاسطوانة cannot be made without numerous access holes.

عناصر: ‘Bowl plug’ (Q72240, Q72232, Q72222, Q72226)
These components are commonly known as “freeze plugs” أو “core plugs.” هُم “منطق” is to seal the large, circular holes in the فاو J6P الاسطوانة صب. These holes are an essential part of the “sand casting” process, as they are used to remove the internal sand “جوهر” that forms the complex shape of the water jacket. After casting, these plugs are hammered or pressed in to create a permanent, watertight seal for the cooling system.

The parts list shows a high quantity (1 + 1 + 6 + 16 = 24 total plugs) of various sizes, which demonstrates the extreme complexity of the internal coolant passages. Note that, just like the head casting itself, there is a specific ‘Bowl plug’ (شركات 5, Q72232) designated for the “engine brake” إصدار. هذا “brake logic” implies it is used to seal a specific access hole that was drilled for the engine brake’s oil gallery, a hole that does not exist on the non-brake version of the فاو J6P الاسطوانة.

FAW J6P Cylinder Head Parts List & تحديد

الجدول التالي يوفر كامل, تفصيل مفصل للجميع 10 أنواع المكونات الصالحة للخدمة المحددة في هذا فاو J6P الاسطوانة مجموعة FAW Jiefang CA3250P66K2L1T1E 6×4 تفريغ الشاحنة.

المواصفات الأساسية

The specifications for the bare فاو J6P الاسطوانة are defined by its function as the serviceable core for airflow and combustion.