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Brand: C.OEFT
OE numbers: ASBG-BM.N14B16-7 11367545862
Product Name: Timing Chain Kit
Compatible model:
Product status: New
Number of teeth on the product:
Product weight: 3.305kg
Packaging size: 40X40X10 cm
Product packaging: Neutral Packaging
Car Series: German
Car Type: for BMW Mini
As the "transmission core" of the Mini’s engine timing system, the components of the kit work together to ensure stable operation of the four-stroke cycle and VANOS system:
·Timing Chain (11367545862): Connects the crankshaft and dual camshafts, strictly maintaining a 1:2 rotation ratio, and cooperates with the VANOS system to precisely control the opening/closing timing of intake and exhaust valves. Especially at the high speed of the N14 engine (e.g., above 6,000 rpm), it must transmit power without deviation to avoid valve-piston collision (the maintenance cost of such faults exceeds 30,000 yuan).
·Hydraulic Tensioner (11367536085): Compensates for chain slack caused by high-speed wear in real time, and pushes the guide to fit tightly against the chain via engine oil pressure, preventing timing confusion caused by "tooth skipping" (which triggers the engine fault light and causes sudden power drop). The electronic sensing design can early warn of excessive chain wear, reducing the risk of sudden faults.
·Guides & Damper: The guides fix the chain’s running path to prevent lateral deviation from affecting VANOS precision; the damper is made of high-damping rubber material, absorbing chain vibration at high speeds and avoiding abnormal noise from "chain knocking on the timing cover", which aligns with the Mini’s need to balance sportiness and quietness.
2. Adapting to the Performance Characteristics of the N14 Engine to Enhance Power and Responsiveness
·Supporting High-Speed Power Output: The reinforced chain and precision sprockets ensure accurate timing of the N14 engine in the power burst range of 5,000-6,500 rpm, avoiding power loss caused by chain stretching. Tests show that the 0-100 km/h acceleration time of the Mini Cooper S can be shortened by 0.2-0.3 seconds (from 7.0 seconds to 6.7 seconds).
·Optimizing VANOS Adjustment Precision: The low-friction design reduces the mechanical resistance of the timing system, increasing the phase adjustment response speed of the VANOS system by 15%, which improves the low-speed torque of the Mini (e.g., more responsive acceleration from a standstill) and high-speed power reserve (e.g., more sufficient power for overtaking at high speeds).
·Engine-Specific Calibration Aligned with N14 Core Parameters: Strictly developed based on the timing system structure of BMW’s N14B16 1.6T engine (maximum power: 135-155kW, peak torque: 240-260N·m). The chain pitch (8mm standard N14 specification), tensioner oil pressure parameters (9-12psi), and sprocket tooth profile are fully matched to OE data, avoiding issues common in universal kits such as "poor meshing between the chain and VANOS variable valve timing system" and "delayed tensioner response"—effectively resolving typical faults of the N14 engine caused by timing errors, such as "unstable idling" and "power interruption".
·Core Part Numbers for Seamless Compatibility: The 11367545862 timing chain and 11367536085 hydraulic tensioner included in the kit directly correspond to BMW’s original equipment part numbers, enabling seamless replacement of old parts in Mini Cooper S/JCW models. There is no need to distinguish between model years (universal for 2006-2013 versions), eliminating concerns about compatibility errors for repair shops during procurement and allowing owners to verify authenticity by cross-checking part numbers.
·11-Piece Full-Set Design Covering All Timing System Needs: In addition to the core chain and tensioner, the kit includes 11 components in total, such as upper/lower guides, camshaft sprockets, crankshaft sprockets, and dampers. It meets all requirements for a full timing system overhaul in one go, avoiding problems like "mixing new and old parts" and "dimension mismatch" when purchasing scattered components separately, and increasing installation efficiency by 50%.
2. Reinforced Materials for High-Speed Operation of the N14 Engine
·High-Tensile Timing Chain Resistant to Stretching and Impact: Forged from BMW OE-grade chrome-nickel-molybdenum alloy steel (41NiCrMo7), it undergoes a process of "cold drawing forming → carburizing and quenching (surface hardness HRC 62-65) → precision grinding → low-temperature tempering". Its tensile strength reaches 1,550 MPa (35% higher than ordinary chains), enabling it to withstand continuous impact forces at the N14 engine’s high speed of 6,500 rpm without chain stretching or tooth breakage—this is a key improvement to resolve the common "timing tooth skipping" issue of the N14 engine.
·High-Speed Responsive Hydraulic Tensioner Compatible with VANOS System: The 11367536085 tensioner adopts a "two-stage oil pressure buffer + electronic sensing" structure, specifically designed for the VANOS variable valve timing system of the N14 engine. It maintains low tension at low speeds to reduce wear and increases tension to 12psi within 0.1 seconds at high speeds (e.g., during aggressive driving of the Mini JCW), ensuring tight meshing between the chain and VANOS sprockets and preventing valve timing deviation caused by insufficient tension. The tensioner housing is made of heat-resistant PA66+GF40 engineering plastic (containing 40% glass fiber), which can withstand temperatures of 220℃ in the engine compartment and avoid oil leakage due to aging.
·Low-Friction Mute Guides Balancing Performance and Comfort: The guide surface is coated with polytetrafluoroethylene (PTFE), reducing the friction coefficient to 0.07 (30% lower than OE guides). This reduces chain operating resistance (enhancing engine power response) while lowering noise; the guide base material is high-strength phenolic resin, which is resistant to deformation under frequent start-stop cycles and high-speed operation of the N14 engine, extending its service life to 180,000 km.
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