9000 Aero L4-2290cc 2.3L DOHC Turbo EFI (1996)
Timing Chain Tensioner: Description and Operation
Because the chain tensioner has a tight adjustment range, it is able to compensate with precision for chain wear and also make for silent operation. The
function is both mechanical and hydraulic, the tensioning force being provided by a spring acting on the tensioning arm. A ratchet prevents return of the
tensioning arm inside the tensioner unit.