Thread: Cam Help!

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Originally Posted by rspears

Tech,
Not to hijack the thread, but since a roller cam is cut square is it still advisable to break in the new cam for the 20 minutes at nominal 2000 rpm's when first started? It seems logical that this is critical to a flat tappet cam, in order to establish the lobe/lifter relationship you describe, but is the procedure the same for a roller cam?

there is on break in on a roller there no lobe relationship other then the roller rolls over its lobe that is all there should be .Sorry not Tech thats what your thust button or trust plate is used for. the hi load seen over the face of the cam you want it flat . over the years they have work on the rollers of the lifters and finsh .a off set loads roller and will wear out lifters if it skids or start to track in the cam bad things are going to start .i put alot of roller cams in and have many ground for my shop . so i could not help my selfdone many roller engines with them not just 20 or so