Toyota 13408-0A010 PULLEY, Crankshaft

Remove the oil pan, pick-up tube, and oil pump. Loosen the harmonic balancer mounting bolts in the recommended sequence, 1/4 turn at a time, until you can unscrew them by hand. Remove the harmonic balancer. Secure the spacers with the harmonic balancer assembly by using wire or twist-ties. Before installing it, make sure to check the harmonic balancer for excessive backlash.

After installing, torquing, and checking the crankshaft and pistons/rods, clean the surface of the block and the Harmonic Balancer spacers. Then, place the spacers on the block. Turn the crankshaft until the number 1 piston is at TDC. Align the punch marks on the balance shafts with their corresponding marks on the housing. Place the Harmonic Balancer on the block and install the bolts. Apply hand pressure on the center of the assembly in the indicated direction and tighten the bolts in several steps, following the sequence shown. Position a dial indicator against the end of the number 1 balance shaft and check the shaft endplay while pushing the shaft back and forth by hand. Repeat the check for the number 2 balance shaft and compare your readings to the specifications. If the endplay is excessive, remove the Harmonic Balancer and take it to a dealer service department or other qualified service facility for repair. Check the balancer shaft gear-to-crankshaft gear backlash at the four indicated locations. Rotate the crankshaft several revolutions and return to TDC for the number 1 piston. Check that the punch marks are still aligned. Rotate the engine clockwise until punch mark A lines up with the notch in the balancer housing. Position a lever-type dial indicator on the side of a tooth of the number 1 shaft gear. Lightly twist the number 1 shaft back and forth a few times by hand and, while pressing on the rear of the shaft to take up the endplay, lightly twist the shaft while observing the dial indicator. Compare the results to on-engine balancer backlash. Remove the dial indicator and rotate the engine clockwise until punch mark B on balance shaft 1 lines up with the notch in the housing. Measure backlash at this position and compare the results to on-engine balancer backlash. Repeat the previous steps and compare the results to on-engine balancer backlash. If any of the readings exceed specifications, change the spacer between the block and the balance assembly to obtain proper backlash. To increase backlash, select a thick spacer; select a thinner spacer to reduce backlash. Changing the spacer by 0.0008-inch changes the backlash by 0.0006-inch. Note: Various size spacers are available at your Toyota Dealership.

After installing the crankshaft pulley, the remaining steps involve reversing the removal process.

The remainder of the installation is the reverse of removal.

After installing the crankshaft pulley, the remaining steps involve reversing the removal process.

The number 2 shaft can be aligned with the housing by aligning mark D with the housing.