idler pulley Archives - Import Car
VIDEO: Timing And Drive Belt Idler Pulley Bearing Loads

The change in the loading of the bearing can result in damage and failure of the belt system. Sponsored by INA, a Schaeffler brand.

Idler Pulley Failure

The majority of the Subarus towed into his shop with timing belt failure can often be traced to an idler pulley failure that resulted in the belt coming off, says Bob Dowie, who advises to replace the pulleys if you have any doubt about their condition, notice grease coming out of them, or if there is roughness or noise when they are spun.