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FAW Xichai Engine CA6DF, CA6DL, CA4D/6D Flywheel Assembly 1005120-2109
It is mounted on the rear end of the engine crankshaft. It primarily stores and releases engine energy through its own moment of inertia, thereby reducing fluctuations in the rotational speed of multi-cylinder engines; additionally, its face serves as the mounting surface for the clutch pressure plate and friction disc, facilitating the transfer of engine power to the transmission.
Common Faults and Recommendations for Replacement and Maintenance
As a high-speed, high-friction drivetrain component, the flywheel assembly requires inspection or replacement in the following scenarios:
1. Flywheel Ring Gear Wear/Damaged Teeth: If the starter emits a sharp metallic clashing sound during startup and the engine fails to start, it often indicates that the teeth on the flywheel ring gear are worn or broken.
2. Surface Ablation and Cracking: Prolonged clutch slippage or high-temperature overloading can cause the flywheel's working surface to exhibit distinct blue discoloration, cracking, or scoring. If only the clutch disc is replaced without resurfacing or replacing the flywheel, the new disc will quickly burn out again.
3. Positioning and Dynamic Balance: The flywheel is a high-speed rotating component. During installation, flywheel bolts must be tightened strictly according to the manufacturer's specifications-using a diagonal, multi-stage torque tightening sequence-and coated with specialized thread-locking compound. Failure to do so can lead to loosening, resulting in severe vibration or even damage to the transmission housing.
Bill of Materials (BOM) for Flywheel System Repair & Replacement
| No. | Part Number | Part Name (EN) | Qty | Replacement Status | Technical Notes / Function & Standards |
|---|---|---|---|---|---|
| 1 | 1005120-2109 | Flywheel Assembly (with Ring Gear) | 1 pc | Core Part | FAWDE Genuine; includes the main flywheel body and pre-pressed starter ring gear. |
| 2 | 1005111-2109 (Ref) | Flywheel Starter Ring Gear | 1 pc | Alternative | Only replaced separately if the flywheel body is intact but the gear teeth are broken (requires heat expansion for installation). |
| 3 | 1005124-6D (Ref) | High-Strength Flywheel Bolt | 6-8 pcs | Mandatory Replace | Specific stretch bolts that undergo plastic deformation under torque; NEVER reuse old bolts. |
| 4 | 1005140-6D (Ref) | Crankshaft Rear Oil Seal Assembly | 1 pc | Mandatory Replace | Located directly behind the flywheel. Replacing it during this process prevents future oil leaks that can contaminate the clutch. |
| 5 | GB/T276-6302 (Ref) | Flywheel Pilot Bearing (Input Shaft Bearing) | 1 pc | Mandatory Replace | Pressed into the center of the flywheel to support the transmission input shaft; highly prone to seizing due to grease starvation. |
| 6 | 1601200-6D (Ref) | Clutch Pressure Plate & Disc Assembly | 1 set | Inspect & Replace | Since the flywheel is the mounting surface for the clutch, a burnt flywheel usually means the clutch lining is also worn or scorched. |
| 7 | Consumable (N/A) | Medium-High Strength Threadlocker (e.g., Loctite 243/271) | 1 tube | Essential Tool | Applied to flywheel bolt threads to prevent loosening from high-frequency engine vibrations. |
DETAILS
| DESCRIPTION | Flywheel Assembly | PART NUMBER | 1005120-2109 |
| WEIGHT | 5kg | VOLUME | 500 mm × 500 mm × 150 mm |
| TRUCK MOLDE | FAW | QUALITY | Copy,High Copy, OEM,Original |
| MOQ | 1 | WARRANTY | 1 year |
| PAYMENT | TT/WESTEN UNION | SHIPMENT | by air/sea/railway |
| BRAND | SINOSACHS | PLACE OF ORIGIN | JINAN CITY,CHINA |
| STOCK | IN STOCK | APPLICABLE SITE | ENGINE |
| PACKAGE | Carton/Woodenbox | PORT OF LANDING | Qingdao Port,China |
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