The 1990 Geo Tracker was available only with the four-cylinder 1.6-liter engine. At the tip of the front of the engine's crankshaft is a one-piece pulley, over which the engine's accessory drive belt crosses. As the pulley turns, it moves the belt and the belt powers the accessories. Removing the pulley is necessary for major engine disassembly, such as to remove the timing chain cover. Fortunately, with the proper tools, the pulley can typically be removed within only a matter of minutes.
Disconnect the accessory drive belt from the crankshaft pulley. Locate the belt tensioner pulley between the crankshaft pulley and the alternator. Note that a single bolt is located in the center of the belt tensioner pulley. Attach a box-end wrench to this bolt, then turn the bolt in a clockwise direction. Applying a twisting pressure to the bolt will move the belt tensioner pulley toward the engine and release the tension of the drive belt. Pull the drive belt off of the crankshaft pulley while the belt is loose, then slowly release the pressure on the wrench to return the tensioner pulley to its normal position.
Install the specially designed pulley holding tool (Suzuki Tool #09917-68221) to the front of the crankshaft pulley by following the manufacturer's directions. As its name suggest, the tool will prevent the pulley from rotating as its securing bolt is removed.
Remove the crankshaft's securing bolt from the center of the crankshaft pulley with a socket wrench and a deep-set socket. Turn the bolt in a counterclockwise direction to remove it.
Attach a steering wheel puller or a harmonic balancer puller to the front of the crankshaft pulley following the manufacturer's directions, then use the puller to disconnect the pulley from the crankshaft.
