Dynamic tensioner
dynamic tensioner (DV6TED4 engine):
a - caliber hole;
b - mark of maximum elongation;
c - zero stretch mark;
d - belt tension control mark (fixed on the engine).
Visual inspection of the dynamic tensioner marks allows you to control the extension of the accessory drive belt.
Note. Label match «b» And «d» indicates the need to replace the belt.
Marks on the dynamic tension roller:
a - position «maximum wear» drive belt;
b - nominal position.
When removing the belt, make sure that there are no hard spots, noises or traces of oil on the dynamic tensioner, as well as on the pulleys of the units. After installing the belt, rotate the engine four turns and check the extension of the accessory drive belt.