Difference between hyd flat tappet and hyd roller cam?
The Torrington thrust bearing in your kit is just there so the cam gear doesn't just ride on the block. On a flat tappet cam with the way it's ground, the lifter rotation "locates" the cam and it doesn't walk back and fourth. With a roller cam it can walk either way, the cam gear keeps it from going back but a cam button is needed to keep it from moving forward. There is a spec for the allowable amount of thrust movement on a roller cam.
I used a really nice trick aluminum cover that my friend makes that makes setting the thrust super easy without taking the cover on and off multiple times...
The Torrington thrust bearing in your kit is just there so the cam gear doesn't just ride on the block. On a flat tappet cam with the way it's ground, the lifter rotation "locates" the cam and it doesn't walk back and fourth. With a roller cam it can walk either way, the cam gear keeps it from going back but a cam button is needed to keep it from moving forward. There is a spec for the allowable amount of thrust movement on a roller cam.
I used a really nice trick aluminum cover that my friend makes that makes setting the thrust super easy without taking the cover on and off multiple times...
