OEM 2001 Toyota Tundra Timing Belt

2001 Toyota Tundra Timing Belt Parts Questions & Experts Answers

• Q: How to Properly Remove and Install a Timing Belt on 2001 Toyota Tundra?

  A: A proper timing belt removal process starts with these steps: engineering under cover removal followed by engine coolant drainage then disconnect the upper radiator hose. Disconnection of the PS pump requires unclipping two PS air hoses from the air intake chamber and resonator followed by removing the bolt securing the PS pressure tube clamp to the frame and disconnecting the PS pump by removing its bolt and nut. The process to remove the A/C compressor from the engine requires first disconnecting the A/C compressor connector followed by drive belt removal and then unbolt the four anchor points. First disconnect the fan by fluid-coupling the fan pulleys before taking off the generator drive belt and pulling out the No.2 fan shroud. To remove the fan with fluid coupling and fan pulleys the technician should first disconnect the A/C compressor bracket but only if A/C was present on the vehicle. First disconnect the upper radiator hose and proceed to remove the No.2 timing belt cover by disconnecting the camshaft position sensor connector and the four high-tension cord clamps then unfastening the six bolts. Initiate fan bracket removal by first unthreading the nut while unmounting the PS pump adjusting strut and afterward unfastening the bolt besides the nut and the fan bracket. Use the crankshaft pulley to achieve TDC/compression of the No.1 piston by aligning its groove with the "0" timing mark on the No.1 timing belt cover. Additionally check the pulley timing alignment of both camshafts and the No.3 timing belt cover before rotating the pulley one revolution if needed. The timing belt tensioner removal requires the alternate loosening of two mounting bolts that remove the tensioner and dust boot with the belt while extracting the tensioner. The loosening operation of the RH camshaft timing pulley bolt requires Special Service Tool: 09960-10010 (09962-01000, 09963-01000) while the LH camshaft timing pulley bolt needs Special Service Tool: 09960-10011 (09962-01000, 09963-01000) until bolt removal of all components is possible. First use Special Service Tool 09213-54015 (90119-08216), 09330-00021 to free up the crankshaft pulley bolt and afterward remove Special Service Tool 09950-50012 (09551-05010, 09552-05010, 09553-05020, 09554-05030) plus the pulley bolt and pulley. Special Service Tool: 09950-50012 (09551-05010, 09552-05010, 09553-05020, 09554-05030) combined with service bolt may be needed for removing the crankshaft timing pulley. The process begins by removing the starter wire bracket followed by the No.1 timing belt cover after unfastening its two bolts and four bolts. Then separate the timing belt guide and timing belt. When reusing the timing belt install a fresh alignment mark on it to match the drilled mark of the crankshaft timing pulley when its original installation indicator is gone. The mechanic will remove No.2 idler pulley and No.1 idler pulley using a combination of a bolt removal tool for the No.2 idler pulley followed by a 10 mm hexagon wrench for removing the pivot bolt, No.1 idler pulley, and plate washer. The crankshaft timing pulley requires removal using Special Service Tools: 09950-50010 (09951-05010, 09952-05010, 09953-05020, 09954-05010). When manual removal is impossible, the service bolt is needed to extract it. During examination check for damage in the timing belt while making sure it avoids bending, twisting, oil contact, water or steam exposure. Also inspect the timing cover gasket and its installation. The inspection includes checking for oil leakage from idler pulleys while verifying their smooth operation together with timing belt tensioner leak detection and push rod movement evaluation through a measurement check that the protrusion should be 10.0 - 10.8 mm (0.394 - 0.425 inch). When installing the components put the crankshaft timing pulley into position based on the key groove and place the No.1 idler pulley and No.2 idler pulley using specified torque specifications. Install the timing belt on the engine but keep it temporary while maintaining a cold engine temperature. Then line up the timing marks between the crankshaft timing pulley and oil pump body while keeping both elements clean. The procedures include installation of the timing belt guide along with No.1 timing belt cover and starter wire bracket while checking all gaskets for integrity and replacing them if required. Apply torque specs to install the crankshaft pulley and next install the LH camshaft timing pulley according to manufactured specifications. Place the No.1 cylinder at TDC/compression while you position the timing belt across the LH camshaft timing pulley. Afterwards, connect the timing belt across the RH camshaft timing pulley where all marks should be properly aligned. The timing belt tensioner installation requires proper torque application while the technician needs to verify valve timing by rotating the crankshaft pulley two rotations to confirm alignment of timing marks. Fasten the fan bracket together with the No.2 timing belt cover and A/C compressor bracket as per torque specifications followed by transient fan fitment with fluid coupling and fan pulleys before securing the No.2 fan shroud and adjusting the drive belt for the generator. The installation process starts with tightening the fan through fluid coupling and fan pulleys then it proceeds to connect the A/C compressor along with the PS pump to the engine after ensuring proper torque values on all fasteners. The procedure ends by installing the engine under cover after starting the motor to check for leakage then performing a road test which includes examining abnormal noise levels and checking shock and slippage as well as shift points and smooth operation. Finally, technicians need to check the engine coolant level.