Ok - trying to do my part and I have been reading up on the hydraulic vs the flat tappet. I can definitely see the benefit with the reduction of friction and the ability to change the profile on the cam lobe. Thus allowing for a difference in duration without risk to the cam itself and the potential of the tappet style ??? lifter ???? grinding into the cam.
My question is, what makes it a hydraulic set up. I have been trying to find a picture example of the differences between the two. The only thing I have seen is the mechanical unit that rests on the cam lobe has a roller vs a simple flat piece of metal. I imagine this still comes in contact with some sort of pushrod which then contacts the rocker mechanism which activates the valve. Would this be true?
Segway to the next question. I have seen some pretty trick rockers which look like they also incorporate a roller mechanism. Is this part of the whole switch to the hyrdraulic set up or can you go to roller rocker arms without making any other changes?
My question is, what makes it a hydraulic set up. I have been trying to find a picture example of the differences between the two. The only thing I have seen is the mechanical unit that rests on the cam lobe has a roller vs a simple flat piece of metal. I imagine this still comes in contact with some sort of pushrod which then contacts the rocker mechanism which activates the valve. Would this be true?
Segway to the next question. I have seen some pretty trick rockers which look like they also incorporate a roller mechanism. Is this part of the whole switch to the hyrdraulic set up or can you go to roller rocker arms without making any other changes?
