![]() Move the exhaust camshaft sprocket counterclockwise to align the marks and to take up belt slack.ĥ. Starting at the crankshaft, go around the water pump sprocket, idler pulley and camshaft sprockets and then around the tensioner.Ĥ. Set the crankshaft timing marks so that the exhaust camshaft sprocket is half of a notch below the intake camshaft sprocket.ģ. ![]() ![]() Set the crankshaft sprocket to TDC by aligning the sprocket with the arrow on the oil pump housing.Ģ. While rotating the tensioner clockwise, push in lightly on the tool until it slides into the locking hole.ġ. Before rotating the tensioner, insert the long end of a 1/8” or 3 mm Allen wrench into the pinhole on the front of the tensioner. Install a 6 mm Allen wrench into the belt tensioner. Failure to align the trailing edge of the sprocket tooth to the TDC mark on the oil pump housing will cause the camshaft timing marks to be misaligned.ġ0. Note: The crankshaft sprocket TDC mark is located on the trailing edge of the sprocket tooth. Before removal of the timing belt, rotate the crankshaft until the TDC mark on the oil pump housing aligns with the TDC mark on the crankshaft sprocket (trailing edge of sprocket tooth.) See Figure 1. And, always align the timing marks before removing theĩ. The camshaft should not be rotated after the timing belt is removed because damage to the valve components could occur. Mentioned in steps 4-8, refer to the 2003 Chrysler Service Guide.Ĭaution: When aligning crankshaft and camshaft timing marks, always rotate the engine from the crankshaft. Remove the bolts attaching the timing belt upper front cover and remove that cover. Remove the timing belt lower front cover bolts and the cover.Ĩ. Remove the air conditioner/generator belt tensioner and pulley assembly.Ħ. Remove the crankshaft vibration dampener.ĥ. Remove the air cleaner upper cover, housing and clean air tube.Ĥ. The following steps provide information on removal and replacement of the 2.4L I4 timing belt.ġ. So, if you are seeing some of these vehicles in your shop with that kind of mileage, it might be a good idea to talk to your customer on scheduling a timing belt replacement. Recommended timing belt replacement for the PowerTech 2.4L engine used in the Jeep Liberty/Wrangler is 120,000 miles. However, valve-to-valve interference can occur if the camshafts are rotated independently. The engine is free-wheeling, meaning it has provisions for piston-to-valve clearance. The 2.4L PowerTech is a double overhead camshaft with hydraulic lifters and four valves per cylinder design.
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