The 2.3L 4-cylinder, 2.9L 6-cylinder and 2.3 and 2.4L 5-cylinder engines use camshafts that ride directly over the followers, allowing one to inspect after removal. It is important to mark the followers for the correct placement if removal is a necessity. The 2.8L 6-cylinder engine has rocker shaft mounted followers. When installing a camshaft, lubricate the camshaft, seats and lifters with the correct camshaft lube or moly grease. For the 2.3L 4-cylinder engines, start by disconnecting the negative battery cable, removing drive belts and setting the engine to TDC of the No. 1 cylinder, removing the
Timing Belt and valve cover. After removing the camshaft center bearing cap and the other bearing caps, remove the camshaft. To install, apply sealant to the caps, lubricate the camshaft and check for end-play before tightening the bolts. For 2.8L 6 cylinder engine, disconnect the battery, set engine to TDC, take off the cylinder head cover and the camshaft rear cover plate and pull the camshaft out. Installation includes oiling of the camshaft and followers, tightening the retaining bolt and reassembling the head. The 2.9L 6-cylinder engine requires similar first steps, including removing the battery and drive belts, and carefully removing the camshaft pulleys and the cylinder head. Installation involves lubrication of camshafts, holding tools and correct alignment of timing marks. For the 2.3L and 2.4L 5-cylinder engines, the procedure begins by disconnecting the battery and removing the drive belt, and then removing various parts, with care taken to obtain the camshafts. Installation involves lubrication, correct alignment and tightening of holding bolts, as well as checks for bearing noise and clean contact surfaces before final assembly and testing for leaks after bringing the engine to life.