How to judge whether the tensioning wheel is broken

How to judge whether the tensioning wheel is broken? The symptoms of tension wheel damage include sudden increase of engine noise during rapid acceleration (especially when the speed is about 1500), engine timing gear jumping, disordered ignition and valve distribution time, engine jitter and difficult ignition (serious direct failure to hit the car). In case of the above conditions, check whether the tensioning wheel has been damaged.

Experienced "old drivers" can tell whether the tensioning wheel is good or bad by feeling the tightness with their hands, or by sound. The tensioning wheel is composed of fixed shell, tensioning arm, wheel body, torsion spring, rolling bearing, spring shaft sleeve and other components. The tensioning wheel can automatically adjust the tensioning force according to the different tightness of the belt, so as to make the transmission system stable, safe and reliable.

The tensioning wheel is a vulnerable part of the car. The rubber belt will naturally be stretched and lengthened over a long period of time. With the tensioning wheel, the belt will run more smoothly, have less noise and prevent slipping. The tensioning pulley is generally replaced together with the timing belt to avoid worries.