FAW J6P Centrifugal Oil Filter: 3 Critical Parts for Ultimate Engine Purity

Welcome to this expert deconstruction of the FAW J6P Centrifugal Oil Filter (Main Assy P/N 1017010-29D). This is the “polishing” system for the engine on the FAW Jiefang CA3250P66K2L1T1E 6×4 dump truck.

This is not the engine’s *main* oil filter. It is a secondary, high-efficiency “Bypass Logic Assembly” designed for one purpose: to remove the microscopic contaminants that a standard filter cannot.

The “logic” of the FAW J6P Centrifugal Oil Filter is to use “centrifugal force” (spinning at 6,000+ RPM) to separate the most destructive particle in a diesel engine: soot.

The “Dual-Filter Logic” is the key to understanding this FAW J6P Centrifugal Oil Filter. A standard “full-flow” paper filter (like the 1012010-36D) must allow 100% of the oil to pass through it easily. This means it can only stop *larger* particles (e.g., 20-30 microns). Diesel “soot,” however, is often sub-5-micron. This soot is too small for the main filter to catch, but it is *highly* abrasive and is the primary cause of engine wear. The “Bypass Logic” of the FAW J6P Centrifugal Oil Filter is that it “taps” about 10% of the oil flow, and by spinning it at high speed, it generates the G-force needed to sling this microscopic, heavy soot out of the oil. This technical guide is an essential resource for engine rebuilders, maintenance managers, and parts specialists. We will deconstruct the entire 3-component-type group. We will analyze the “Centrifugal Separation Logic” (the main assembly and its internal rotor), the “Bypass Flow Logic” (how it’s powered by oil pressure), and the “Sealing & Mounting Logic” (the gasket and bolts) that define this critical FAW J6P Centrifugal Oil Filter system.

Core 1: The “Centrifugal Separation” Logic (Component 1)

This is the main assembly, the core of the FAW J6P Centrifugal Oil Filter. Its “logic” is not to “filter” but to “separate” using physics.

1. Component: ‘Centrifugal oil filter assy’ (1017010-29D)
This (Comp 1) is the complete housing and rotor assembly. It consists of two main parts: a stationary “housing” that bolts to the engine, and a high-speed, internal “rotor” where the cleaning happens.

2. The “Rotor Logic” (Internal):
Inside the FAW J6P Centrifugal Oil Filter housing is a balanced, lightweight rotor that spins at incredibly high speeds (6,000+ RPM). The “Centrifugal Logic” is that “dirty” oil is fed into the center of this spinning rotor. The immense G-force (thousands of Gs) created by the spinning separates the oil and contaminants by *mass*. The clean, lighter oil stays in the center, while the heavier, denser particles (soot, metal, silica/dirt) are “slung” outwards with extreme force. 3. The “Soot Capture Logic” (Internal):
This is the “service” part of the FAW J6P Centrifugal Oil Filter. As the heavy soot particles are slung outwards, they “impact” and “stick” to the inner wall of the rotor. Over thousands of miles, these particles build up to form a thick, dense, black “sludge cake.” This is *proof* the filter is working. The “Service Logic” is that during an oil change, this rotor must be removed and the “sludge cake” must be physically scraped out. This is the “filter” that you clean and re-install, which is a key maintenance feature of the FAW J6P Centrifugal Oil Filter.

Core 2: The “Bypass & Drive” Logic (System Context)

This FAW J6P Centrifugal Oil Filter has no moving parts connected to the engine’s gears or belts. Its “logic” is that it is *powered* by the very oil it cleans.

1. The “Bypass” Logic:
This FAW J6P Centrifugal Oil Filter is plumbed in a “bypass” circuit. This means that 100% of the oil from the ‘FAW J6P Oil Pump’ goes to the *main* “full-flow” paper filter first. This is “Protection Logic,” as it ensures the engine *always* gets a full flow of *filtered* oil. A “tap” or “bleed” line then takes about 10-15% of this “clean” oil and routes it to the FAW J6P Centrifugal Oil Filter for “polishing.”

2. The “Jet Drive” Logic (Internal):
This is how the rotor spins. The oil fed into the FAW J6P Centrifugal Oil Filter flows up the center of the rotor. At the bottom of the rotor are two (2) tiny, opposing “jet nozzles.” The high-pressure oil is forced *out* of these nozzles at high velocity. This “Jet Propulsion Logic” (like a garden sprinkler) is what creates the “reactionary force” that spins the rotor at thousands of RPM. The oil then simply falls out of the nozzles and drains back to the oil pan. This is an incredibly robust, self-powered design with only one moving part. This “Jet Logic” is the engine of the FAW J6P Centrifugal Oil Filter.

Core 3: The “Sealing & Mounting” Logic (Components 2, 3)

This final group’s “logic” is to provide a secure, vibration-proof, and leak-free mounting for the FAW J6P Centrifugal Oil Filter housing.

1. Component: ‘Gasket – Centrifugal oil filter’ (1017022-29D)
This (Comp 3) is the “High-Pressure Sealing Logic.” This gasket provides the critical seal between the ‘Centrifugal oil filter assy’ (Comp 1) and the engine block (or oil cooler module). Its “logic” is to contain the full, high-pressure flow of oil from the oil pump that is being fed *into* the FAW J6P Centrifugal Oil Filter. A failure of this gasket is a “catastrophic leak” that will dump the engine’s oil supply in seconds, leading to total engine seizure. It is made from a high-temperature, oil-resistant, crush-proof material to ensure a perfect seal.

2. Component: ‘Hexagon flange bolt’ (Q1840825)
The list calls for four (4) of these bolts (Comp 2). This is the “Vibration-Proof Clamping Logic.” These four bolts must hold the entire FAW J6P Centrifugal Oil Filter housing securely against the engine. The “Flange Logic” is critical: the built-in washer “flange” distributes the clamping load evenly across the filter’s mounting bracket. This ensures the ‘Gasket’ (Comp 3) is crushed perfectly evenly, and it prevents the high-frequency vibrations of the diesel engine from “walking” the bolts loose over time.

FAW J6P Centrifugal Oil Filter Parts List & Specifications

The following table provides the complete, detailed breakdown of all 3 component types identified in this FAW J6P Centrifugal Oil Filter assembly for the FAW Jiefang CA3250P66K2L1T1E 6×4 dump truck.

Core Specifications

The specifications for the FAW J6P Centrifugal Oil Filter are defined by its function as a high-speed, bypass “polishing” filter.