Specifications
Problem:
The tensioner blocked after a short period of operation.
The timing belt becomes hot and overheats the idler.
Cause:
During tensioning pulley installation, the rotating axis was not
itted properly and/or the nut was not tightened suiciently.
This caused the pulley to twist under load and the running
surface seized as a result of a bent retaining plate.
Solution:
Ensure that the tensioning pulley is correctly installed on the
mounting surface. The lug must be located in the recess of the
retaining plate.
I n addition, the speciied tightening torque of 50 Nm must
be observed during installation.
Seized tensioning pulley
Overheated idler
CT 604 K1, CT 684 K1, CT 711 K1, CT 840
K1/K2, CT 935 K1/K2, CT 940 K1/K2, CT 949 K1
Renault, various
ContiTech Technical Info 31
Installation tip – tensioning pulley