Tuyauterie FAW J6P: Déconstruction 46 Pièces critiques pour un contrôle thermique étanche

This is a complete technical analysis of the Tuyauterie FAW J6P système (Chapitre 37), le “arterial network” for the thermal management system on the FAW Jiefang CA3250P66K2L1T1E 6×4 tombereau. This 46-component group is not just a set of hoses; it is an engineered “Fluid & Air Transport Logic” système. Its integrity is paramount for preventing coolant leaks, boost leaks, and catastrophic engine overheating.

Le Tuyauterie FAW J6P system must simultaneously manage three “Fluid Logic” circuits. Le “Primary Coolant Logic” (the main radiator hoses) moves high-temperature engine coolant. Le “Charge Air Logic” (the intercooler hose) transports high-pressure, hot air from the turbo. Le “Degassing Logic” (a network of small pipes) scavenges and removes destructive air bubbles from the system.

This guide is an essential resource for chassis technicians, fleet maintenance managers, et spécialistes des pièces détachées. We will deconstruct every component of the Tuyauterie FAW J6P assemblée. Nous analyserons le “Primary Circulation Logic” (the main coolant hoses and clamps), le “Charge Air Logic” (the boost hose), le “Degassing Logic” (the air bleed network), et le “Logique d'étanchéité” (the critical banjo clamps that ensure a leak-proof system).

Cœur 1: Le “Primary Circulation” Pipework (Composants 3, 4, 5, 6)

Ce groupe représente le “main arteries” de la Tuyauterie FAW J6P système, responsible for moving the bulk of the engine coolant. A failure here is catastrophic.

1. Composant: ‘Radiator inlet hose’ (1303011-14B)
Ce (Comp 4) est le “Hot Side Logic.” This high-temperature hose carries 90°C+ coolant *from* the engine’s thermostat housing *to* the ‘Radiator assy’ (Comp 1). It is engineered from reinforced EPDM rubber to withstand high heat, high pressure, and constant engine vibration.

2. Composant: ‘Radiator outlet hose’ (1303021-14B)
Ce (Comp 6) est le “Cold Side Logic.” It carries the now-cooled (Par exemple, 80° C) coolant *from* the bottom of the radiator *back to* the ‘Water Pump’ (Chapitre 19) to re-enter the engine block. This hose is under “suction” from the water pump, so its internal reinforcement must prevent it from “collapsing” inward.

3. Composant: ‘Banjo-type hose clamp B model’ (CQ67670B, CQ67680B)
Ces (Comp 3, 5) sont les “Sealing Integrity Logic” and are the most critical “Smallest Serviceable Units” in the Tuyauterie FAW J6P système. These are not simple worm-gear clamps. UN “Banjo-type” (ou “T-Bolt”) clamp provides a 360-degree, high-torque “Clamping Force Logic.” This ensures a perfect, leak-proof seal on the reinforced hoses, preventing coolant loss, which would lead to rapid engine overheating.

Cœur 2: Le “Charge Air” Pipework Logic (Composants 28, 29)

Cette partie du Tuyauterie FAW J6P system handles “air,” not “coolant.” It manages the high-pressure “booster” from the turbocharger.

1. Composant: ‘Intercooler connecting hose’ (1311034-50UN)
Ce (Comp 28) est le “Boost Logic” hose. The ‘Radiator assy’ (Comp 1) is a dual-core unit containing the “Charge Air Cooler” (Refroidisseur intermédiaire). This hose’s “logique” is to connect the “cold side” of the intercooler *to* the engine’s intake manifold.

Ce Tuyauterie FAW J6P component is engineered to handle 20-30+ PSI of boost pressure, oil mist (from the turbo), and high temperatures. It is likely made of multi-layer reinforced silicone to prevent it from “ballooning” or bursting under boost.

2. Composant: ‘Banjo-type hose clamp B model’ (CQ67635B)
Ce (Comp 29) est le “Boost Sealing Logic.” UN “boost leak” is a common failure point that is catastrophic for performance. These high-torque clamps (Quantité 3) are essential to “verrouillage” the ‘Intercooler connecting hose’ (Comp 28) onto the rigid pipes. UN “boost leak” from a failed clamp causes an immediate loss of power, excessive black smoke, and a “check engine” lumière.

Cœur 3: Le “Degassing & Bypass” Pipework Logic

C'est le “System Breathing Logic” network within the Tuyauterie FAW J6P. Its function is to remove trapped air, le #1 enemy of a cooling system.

1. Le “Degassing Network” (Composants 39, 40, 46, 17)
This includes the ‘Radiator rear degas pipe’ (1311069-76UN), ‘Radiator degas pipe’ (1311063-61B), et ‘Engine degas pipe assy’ (1311025-138). Ce “Scavenging Logic” uses small-bore pipes to continuously “suck” air from the highest points of the system (the top of the radiator and the engine head).

Ce “Air-Free Logic” est critique. Trapped air creates “steam pockets” that don’t transfer heat, causing “hot spots” that can warp a cylinder head. Ce Tuyauterie FAW J6P routes all scavenged air to the ‘Reservoir’ (1302052-01) (Comp 17), également connu sous le nom de “Réservoir d'extension,” where the air is safely vented, and the coolant is returned to the system.

2. Le “Bypass Network” (Composants 30, 31, 37, 41)
This group of Tuyauterie FAW J6P includes the ‘Return water pipe’ (1311062-14B), ‘Connection steel pipe assy’ (1311035-61B), ‘Front return water pipe’ (1311034-61B), et ‘Connecting pipe assy’ (1311025-61B). C'est le “Bypass Logic” that allows hot coolant to flow to the “FAW J6P Cab Heater” (see Chapter 52), even when the engine’s main thermostat is closed.

Cœur 4: Le “Anti-vibrations” Logique (The Context for the Pipework)

Le Tuyauterie FAW J6P (tuyaux) must be flexible for a specific reason: le “moteur” et le “radiateur” do not move as one. This group explains the “Vibration Isolation Logic” that the pipework must compensate for.

1. Le “Isolated Mounting Logic” (Composants 11, 12, 13)
The ‘Radiator assy’ (Comp 1) sits on a ‘Radiator bottom crossmember’ (1302030-61B) and is held by “isolated” ‘Supports’ (1302027-70U, 1302028-70U). These mounts (see Chapter 38) use rubber to “damp” vibration.

2. Le “Anti-Sway Logic” (Composants 18, 19)
Le ‘Tie rod assy’ (1302050-01) et ‘Tie rod upper support’ (1302041-14B) are diagonal stabilizers. They prevent the 30kg+ radiator from “swaying” et “shearing” when the truck’s chassis flexes.

Ce “Differential Movement Logic” is the final piece of the puzzle. Le Tuyauterie FAW J6P système, specifically the flexible hoses (Comp 4, 6, 28), sont les “Flexible Coupling Logic” that “bridges the gap” between the vibrating engine and the “sway-damped” radiateur. This prevents the “Anti-Vibration Logic” depuis “tearing” the rigid radiator ports off the engine.

Tuyauterie FAW J6P & Radiator Assembly Parts List

Le tableau suivant fournit l'intégralité, ventilation détaillée de tous 46 types de composants dans le Tuyauterie FAW J6P and thermal management assembly (Chapitre 37) Pour le FAW Jiefang CA3250P66K2L1T1E 6×4 tombereau.

Spécifications de base

Les spécifications pour le Tuyauterie FAW J6P system are defined by its function as the leak-proof transport network for the engine’s coolant and charge air.