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Now it's time to install and adjust the rockers. Spin the engine by hand until the cam is on the base circle for the lifter you are going to adjust. Or, to adjust the intake valve, spin the engine until the exhaust valve opens. This will ensure that the intake is completely closed. For the exhaust, watch the intake valve and stop when it begins to close. Clean off the rockers and assemble one at a time using the aluminum rocker stand and the bolt. Place the bolt through the hole in the rocker and make sure the head of the bolt sits on the flat side of the fulcrum.