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Brand: C.OEFT
OE numbers: ASBG-FT.1ZZ-6
Product Name: Timing Chain Kit
Compatible model: 13050-22012
Product status: New
Number of teeth on the product: /
Product weight: 2.28kg
Packaging size: 40*40*10cm
Product packaging: Neutral Packaging
Car Series: Japanese
Car Type: For old Corolla 1ZZ 1.6/1.8
·Stabilize VVT-i System Operation: The precise meshing of the timing chain and VVT-i sprocket ensures that the 1ZZ engine’s variable valve timing function works normally. It resolves the "VVT-i response delay" in old Corollas (caused by worn original chains), restoring the engine’s low-speed torque output—making start-ups and uphill driving smoother, and eliminating the "weak acceleration" feeling of old vehicles.
·Prevent Valve-Piston Collision: The high-tensile chain and reliable tensioner avoid "chain skipping" (a high-risk fault in aged timing systems). This prevents the 1ZZ engine’s intake/exhaust valves from colliding with pistons—an accident that costs over 8,000 yuan to repair (including cylinder head replacement) for old Corollas.
2. Optimize Old Engine Performance & Fuel Economy
·Reduce Mechanical Loss: The low-friction chain and guide reduce the timing system’s mechanical resistance by 30%, making the aged 1ZZ engine’s power transmission efficiency increase by 6%-8%. For example, the 1.8L old Corolla’s 0-100km/h acceleration time can be shortened by 1-1.5 seconds, and the "power decay" feeling is significantly alleviated.
·Improve Fuel Consumption: Precise timing control optimizes the 1ZZ engine’s intake and exhaust efficiency, reducing incomplete combustion caused by VVT-i misalignment. Tests show that it can reduce the urban fuel consumption of old Corollas by 0.4-0.6 L/100km (e.g., the 1.8L Corolla’s urban fuel consumption drops from 9.2 L/100km to 8.6 L/100km)—a crucial improvement for old vehicles with increased fuel consumption.
1.OE-Level Precision for 1ZZ Engines, No Compatibility Risks
·1:1 Original Parameter Calibration: Strictly developed based on the timing system structure of Toyota’s 1ZZ-FE engine. The core part (timing chain matching Part No. 13050-22012) adopts a 122-link design with an 8mm pitch—an exclusive specification for the 1ZZ series—to ensure the precise 1:2 transmission ratio between the crankshaft and camshaft. It avoids "excessive meshing clearance with the VVT-i (Variable Valve Timing with intelligence) system" common in universal kits, fundamentally resolving faults like "idle jitter," "accelerator lag," and "VVT-i system error codes (P0011/P0012)" in old Corollas.
·Perfect Fit with Aged Engine Bays: Considering that old Corolla engine bays may have slight component deformation (e.g., cylinder block mounting holes), the kit’s guide and tensioner bracket are designed with a 0.05mm tolerance buffer. They can still fit tightly without additional modification, unlike non-specialized kits that require grinding to adapt—saving repair time for old vehicle maintenance.
·Covers Both 1.6L/1.8L 1ZZ Variants: Fully compatible with Toyota 1ZZ-FE 1.6L (max power 81kW) and 1.8L (max power 97kW) engines used in old Corolla models (e.g., Corolla E120/E130 generations). Repair shops do not need to stock separate kits for different displacements, reducing inventory pressure.
·Tool-Free Adaptation: The kit includes a dedicated alignment pin for the 1ZZ engine’s crankshaft and camshaft—no need to use Toyota’s special timing tool (TIS Techstream). Professional technicians can complete alignment in 15 minutes, and even small repair shops without advanced equipment can operate it.
·Detailed Old Vehicle Maintenance Tips: The installation manual adds "aging component handling guidelines" (e.g., cleaning VVT-i solenoid valve oil passages before installation, checking chain cover gaskets for cracks)—addressing common oversights in old Corolla maintenance, such as "new chain failure due to blocked VVT-i passages."
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