There are a couple of ways to adjust valves on engines that have solid or roller lifters. The first way is to bump the engine over preferably with a remote starter switch so you can be under the hood watching the movement of the valvetrain. The idea is to SET THE INTAKE VALVE LASH when the exhaust valve just starts to open. SET THE EXHAUST VALVE LASH when the intake valve is MID-WAY to closing. That's it!
This is the simplest and fastest way for the beginner. There are even faster ways by doing multiple cylinders at a time but I won't go into that right now.You also need to understand that cams are not perfect, and although lobe base circles should not have any runout, they often do. Not only that but some cams can have relatively long tappet ramps which can cause problems when setting the lash as I stated above. If you really want a perfect setting you need to make sure the lifter is positioned perfectly on the base circle before any adjustments are made.
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Saturday, October 31, 2009
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