1. Key Features
The JTC-4377 Timing Chain Adjuster is specially designed to adjust timing chain tension during engine timing service on BMW engines.
It provides accurate timing chain tension according to manufacturer specifications, ensuring precise engine timing.
Ideal for timing chain replacement, engine repair and overhaul procedures.
Manufactured to OEM standards for precise fitment and reliable performance.
Made from high-quality alloy steel for excellent strength, durability and wear resistance.
Robust construction and easy operation make it suitable for professional automotive workshops.
Compatible with BMW N63 and N74 engines.
BMW OEM number: 83300496384.
2. Applications
Used for adjusting timing chain tension during engine timing service.
Suitable for timing chain replacement, engine repair and overhaul on BMW N63 and N74 engines.
Ensures accurate valve timing after engine assembly.
Ideal for BMW dealerships, automotive workshops and professional engine repair facilities.
3. Instructions for Use
Rotate the engine to Top Dead Center (TDC) according to the service manual.
Install the JTC-4377 onto the timing chain tensioner location.
Adjust the timing chain tension to the specified setting.
Perform engine timing adjustment or timing chain replacement.
Remove the tool and verify engine timing before starting the engine.
4. Maintenance
Clean the tool thoroughly after each use.
Apply a light coat of anti-rust oil before storage.
Inspect the threaded sections and working surfaces regularly for wear or damage.
Store the tool in its carrying case in a dry environment.
Use only on the specified engine models.
