FAW J6P Fuel Tank: Deconstructing 22 Critical Parts for Flawless Fuel Delivery

Welcome to this expert deconstruction of the FAW J6P Fuel Tank (Main Assy P/N 1101010-14BJ). This is the complete “fuel storage and delivery” system for the FAW Jiefang CA3250P66K2L1T1E 6×4 dump truck.

This is not just a metal box; it is a complex 22-component “Logic Assembly” engineered to store fuel, manage “slosh,” prevent leaks, and deliver a constant, air-free supply of diesel to the engine’s high-pressure system.

The “Anti-Surge Logic” is the most critical internal feature of this FAW J6P Fuel Tank. A heavy-duty dump truck operates on extreme inclines, declines, and severe side-tilts. This “sloshing” of fuel is a major problem. If the fuel pickup tube becomes uncovered for even a split second, it will suck air. Air in a high-pressure common rail (HPCR) system can cause stumbling, power loss, and can permanently damage the injectors. The “logic” of this FAW J6P Fuel Tank is that it contains internal “baffles” (walls with small openings) that “corral” the fuel and trap it at the pickup point, guaranteeing a solid, air-free supply of fuel regardless of the truck’s angle.

This technical guide is an essential resource for chassis technicians, fleet maintenance managers, and parts specialists. We will deconstruct the entire 22-component group. We will analyze the “Reservoir & Venting Logic” (the main FAW J6P Fuel Tank and cap), the “Structural Mounting Logic” (the anti-vibration brackets), the “Critical Clamping Logic” (the straps and gaskets), and the “Plumbing & Flow Logic” (the main inlet and return pipes) that connect the FAW J6P Fuel Tank to the engine’s fuel filters.

Core 1: The “Reservoir & Venting” Logic (Components 1, 2, 3)

This group forms the main “storage” component of the FAW J6P Fuel Tank system. Its logic is to hold the fuel, manage internal pressure, and prevent sloshing.

1. Component: ‘Fuel tank assy’ (1101010-14BJ)
This (Comp 1) is the main FAW J6P Fuel Tank. Its “Material Logic” is either high-strength, corrosion-resistant steel or lightweight aluminum (to save weight and increase payload). Its “Reservoir Logic” is its large, 400L+ capacity, designed for long-haul operation. The most important “logic,” however, is internal:

2. The “Anti-Surge Logic” (Internal to Comp 1):
Inside the FAW J6P Fuel Tank are “baffles.” These are internal walls with small, strategically placed holes. Their “logic” is to act as “dampers” for the fuel. When the truck brakes hard, the entire 400L mass of diesel “sloshes” forward. These baffles prevent that “surge,” which would otherwise destabilize the truck. More importantly, they keep the fuel from “sloshing” *away* from the ‘Fuel pickup tube’ (part of the sender assembly, not listed) on steep inclines, which would cause the engine to suck air and stall.

3. Component: ‘Fuel tank cap assy’ (1103010-50A)
This (Comp 2) is the “Venting Logic.” This is not a simple “plug.” A sealed FAW J6P Fuel Tank would create a “vacuum” as the engine sucks fuel out, eventually collapsing the tank or starving the pump. This cap (Comp 2) is a “Pressure-Vacuum” valve. It allows air *in* (to replace the fuel being used) but prevents fuel vapor *out* (for emissions) and prevents fuel *splashing out* (for safety). The ‘Diesel tank sticker label’ (Comp 3) is a “Compliance Logic” component, identifying the fuel type for safety.

Core 2: The “Structural Mounting” Logic (Components 4, 5)

This group’s “logic” is to create a rock-solid, vibration-proof “shelf” that the entire FAW J6P Fuel Tank rests on.

1. Component: ‘Rear bracket assy-fuel tank’ (1101205C50A)
The list calls for two (2) of these (Comp 4). This is the “Load-Bearing Logic.” A full 400L FAW J6P Fuel Tank can weigh over 350 kg (770 lbs). This ‘bracket’ is a heavy-duty, L-shaped steel “shelf” that bolts directly to the truck’s main chassis frame rail. This “logic” ensures that the tank’s entire weight is supported by the truck’s frame, not by the straps.

2. Component: ‘Gasket-bracket’ (1101117C50A)
The list calls for two (2) of these (Comp 5). This is the “Anti-Chafe Logic.” This is a simple but absolutely critical rubber or high-density foam “gasket” that sits on *top* of the ‘Bracket’ (Comp 4). Its “logic” is to prevent *any* metal-on-metal contact between the steel bracket and the FAW J6P Fuel Tank. Without this “gasket,” the constant, high-frequency vibration of the diesel engine would cause the steel bracket to “chafe” or “rub” a hole directly through the bottom of the fuel tank, leading to a massive fuel leak and fire hazard.

Core 3: The “Critical Clamping” Logic (Components 6, 7, 8-16)

This group’s “logic” is to “clamp” the FAW J6P Fuel Tank down onto its brackets, securing it against all forces.

1. Component: ‘Strap assy-fuel tank’ (1101135C50A)
The list calls for two (2) of these (Comp 6). This is the “Clamping Force Logic.” These are high-tensile steel bands that wrap *over* the FAW J6P Fuel Tank and bolt to the ‘Bracket’ (Comp 4). Their “logic” is to provide the massive, downward “clamping force” that holds the 350+ kg tank in place during bumps, acceleration, and braking. They are often tightened with a T-bolt and nut, allowing for precise, high-torque clamping.

2. Component: ‘Gasket-strap’ (1101134C50A)
The list calls for two (2) of these (Comp 7). This is the “360-Degree Protection Logic.” Just like the ‘Gasket-bracket’ (Comp 5), this rubber gasket lines the *inside* of the steel ‘Strap’ (Comp 6). Its “logic” is to prevent any “metal-on-metal” chafing on the top or sides of the FAW J6P Fuel Tank. This “Strap & Gasket” + “Bracket & Gasket” system creates a complete “cradle” that protects the FAW J6P Fuel Tank from all vibration and chafing.

3. The “Fastener” Logic (Components 8-16)
This is the “Hardware Logic.” This group contains all the ‘Hexagon flange bolts’ (Comp 8, 9, 10, 11), ‘Hexagon nuts’ (Comp 12), ‘Washers’ (Comp 13, 16), and ‘Pins’ (Comp 14, 15) required to mount the assembly. The “Flange Bolt Logic” provides a built-in washer for vibration resistance. The ‘Flat pin’ (Comp 14) and ‘Cotter pin’ (Comp 15) are a “Safety-Lock Logic” on the strap assembly, preventing the main T-bolt or pin from ever vibrating loose.

Core 4: The “Plumbing & Flow” Logic (Components 17, 18, 19)

This final group’s “logic” is to manage the “flow” of fuel to and from the FAW J6P Fuel Tank.

1. Component: ‘Inlet pipe assy – fuel tank to coarse filter’ (1104120-14BJ)
This (Comp 17) is the “Suction Logic.” This is the single most critical pipe in the entire FAW J6P Fuel Tank system. Its “logic” is to be the 100% airtight “straw” that *pulls* fuel *from* the tank’s internal pickup tube and delivers it *to* the primary (coarse) fuel filter/water separator. A tiny, pinhole “suction leak” here (from chafing or a loose fitting) is a catastrophic failure. It will cause the pump to suck *air*, leading to engine stalling, no-start conditions, and severe damage to the high-pressure injection pump.

2. Component: ‘Inlet pipe assy – coarse filter to engine inlet’ (1104130-14BJ)
This (Comp 18) is the “Clean Feed Logic.” After the fuel has passed through the primary filter (which removes water and large debris), this “logic” pipe transports the “clean” low-pressure fuel *to* the engine. It feeds the ‘FAW J6P Fuel Fine Filter’ (Chapter 24) and then the ‘Fuel Injection Pump’ (Chapter 23).

3. Component: ‘Return pipe assy’ (1104250-14BJ)
This (Comp 19) is the “Bypass Return Logic.” A High-Pressure Common Rail (HPCR) system *bypasses* a large volume of fuel to cool and lubricate the injectors and pump. This “hot” fuel cannot stay in the engine. This pipe’s “logic” is to be the “return path,” collecting all this bypassed fuel and sending it back to the FAW J6P Fuel Tank to be cooled and recycled.

FAW J6P Fuel Tank & Pipe Parts List & Specifications

The following table provides the complete, detailed breakdown of all 22 component types identified in this FAW J6P Fuel Tank and Fuel Pipe assembly for the FAW Jiefang CA3250P66K2L1T1E 6×4 dump truck.

Core Specifications

The specifications for the FAW J6P Fuel Tank assembly are defined by its function as a heavy-duty, anti-vibration, anti-surge fuel storage and delivery system.