So for example if a person fitted a Silvertop oil pump on the Blacktop engine then the Blacktop’s timing belt pulley would want to get rotated half a tooth even more relative towards the protrusion around the Silvertop oil pump. Pictured underneath is the Blacktop pulley placed on the very https://wearethelist.com/story20357165/4age-20v-blacktop-fundamentals-explained