Description :

Tomei EJ20/EJ257 Aluminum Timing Belt Guide

Horizontally opposed engines combust structurally at 180 degrees; increasing the chances of the camshafts not performing at their maximum lift. Because of this, installing high lift camshafts in these engines may create unnecessary belt vibration leading to the pulley spinning off the rotating assembly. Without the pulley in its rightful place, the valves and the pistons are guaranteed to make contact in this situation. The manufacturer had created a component to eliminate this costly damage, called the belt guide. However, this belt guide is constructed from think sheet metal which lack strength and rigidity with overall attributes that simply cannot securely maintain the belt and pulley at times.