FAI's Timing Chain Kit for the BMW N47, the TCK133C. The tensioner in these kits is the latest OE design which is now the only design that OE and FAI offer. FAI has recently been made aware of a few rare instances where the thread in the cylinder head is congested with carbon, resulting in the tensioner not fully engaging into the head. This bulletin shows in detail the best practice for fitting the tensioner.

Our Technical Director Dominic Moxon has created a video regarding the tensioner and best practice for the installation. You can find the video here.