![]() The centre of the follower is free to move within the outer shell and this is the part where the pushrod seats. Basically speaking the follower is oil filled and has a small spring at its centre. The standard engine is fitted with hydraulic camshaft followers (lifters or tappets) and these provide a degree of 'pre-load' within the valve train. ![]() There are aftermarket options available including the 'Yella Terra' roller rocker system and so called 'Group A' adjustable rockers but they are expensive and difficult to get hold of. The pads tend to wear a groove from the top of the valve and can often fracture or simply break away resulting in very noisy valve gear and subsequent follower and engine damage. The standard construction is not the best of rocker assembly designs. These pads are slightly curved to allow the valve to 'slide' across the top of them. ![]() The rocker arms themselves are fitted with a 'cup' at the pushrod end and a steel shim or pad at the valve end. The rocker arms are generally of aluminium construction although there are some steel versions on the market that look very similar to the standard items. The Rover V8 standard valve train consists of Steel Rocker shafts held in place by four pedestals and holding 8 rocker arms per head. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |