This video provides important technical guidance on the installation of the tensioner supplied with the FAI Timing Chain Kit TCK133C for the BMW N47 engine. The tensioner included in this kit features the latest OE design, which is now the standard specification used by both OE and aftermarket applications. In rare cases, it has been identified that carbon build-up within the cylinder head thread may prevent the tensioner from fully engaging during installation. The video demonstrates best practice installation procedures, highlighting how to correctly prepare the thread and ensure the tensioner is fitted safely and securely. Following these guidelines helps to ensure correct operation and reduces the risk of installation-related issues.