Specifications

Problem:
Shortly after the kit has been installed, the idler pulley fails
due to degradation/overheating.
Cause:
Seizure of the tensioning pulley. This causes the belt to overheat
and in turn to transmit this heat to the idler. As a result, the
plastic cage of the bearing melts, causing the pulley to fail.
The seizure of the tensioning pulley occurs when the roller rubs
against the mounting support.
Solution:
It is essential to clamp the tensioning pulley counterclockwise
when an eccentric is used for tensioning. The pulley must be
able to move freely on the mounting support. The tightening
torque of 48 Nm on the ixing screw must be observed.
Tensioning pulley seized
internally
Failed idler
CT 941 K1
Mitsubishi 1.8 GDI, Volvo V40/S40 1.8
ContiTech Technical Info 18
Overheating of idler