OEM 2002 Toyota Tundra Timing Belt

2002 Toyota Tundra Timing Belt Parts Questions & Experts Answers

• Q: How to Properly Remove and Install a Timing Belt on 2002 Toyota Tundra?

  A: Starting the timing belt removal requires engine under cover removal and drain of engine coolant before disconnecting the upper radiator hose. Engine disconnect of the PS pump requires removal of the air hoses from the air intake chamber and resonator as well as the removal of the bolt securing the PS pressure tube clamp on the frame and the drive belt and the PS pump bolt and nut. Drivers should disconnect A/C compressors from engines through the process of removing connector, drive belt and four bolts. You need to loosen the fan through its fluid coupling as well as fan pulleys and need to remove the drive belt for the generator before you extract the No. 2 fan shroud and fan with its fluid coupling and fan pulleys. The procedure calls for five bolt removal to detach the A/C compressor bracket. The process begins by disconnecting the upper radiator hose then removing the No. 2 timing belt cover through the step of disconnecting the camshaft position sensor connector and four high-tension cord clamps followed by six bolt removal. Disassemble the fan bracket by first untightening the PS pump adjusting strut and the nut and then unscrewing the bolt, nut and fan bracket. Set the number 1 cylinder at top dead center compression position by aligning the crankshaft pulley groove with the zero timing mark on the number one timing belt cover while also making sure the camshaft timing pulleys and number 3 timing belt cover timing marks align. You must remove the timing belt tensioner after you alternately lose and take out its two bolts then extract its timing belt. The special service tool 09960-10010 (09962-01000, 09963-01000) enables loosening of the RH camshaft timing pulley bolt while the special service tool 09960-10011 (09962-01000, 09963-01000) serves to loosen the LH camshaft timing pulley bolt. The operator should remove all pulley bolt components along with knock pin to detach the camshaft timing pulley. Use Special Service Tools 09213-54015 (90119-08216) together with 09330-00021 to loosen the crankshaft pulley bolt before removing Special Service Tool 09950-50013 (09551-05010, 09552-05010, 09553-05020, 09554-05031), the bolt, and pulley as well. You need to detach the starter wire bracket and No. 1 timing belt cover through the removal process of two bolts from the starter wire bracket and four bolts from the timing belt cover, after which you should take out the timing belt guide and timing belt. The procedure requires removal of both the bolt along with the No. 2 idler pulley using a 10 mm hexagon wrench for removing the pivot bolt, No. 1 idler pulley and plate washer. When the crankshaft timing pulley does not come off by hand use Special Service Tool: 09950-50013 (09951-05010, 09952-05010, 09953-05020, 09954-05011) along with the service bolt. A thorough inspection of the timing belt should identify any bending, twisting or contact with oil, water or steam while checking for correct installation and timing cover gasket health. An examination of idler pulleys should check for oil leakage and their ability to operate smoothly while also evaluating the timing belt tensioner for oil leakage as well as correct push rod movement. Check the push rod protrusion from the housing end against the range of 10.0 - 10.8 mm (0.394 - 0.425 inch). First install the crankshaft timing pulley by aligning it with the key groove and then slide it on before installing No. 1 idler pulley and No. 2 idler pulley according to specified torque values. The timing belt installation process starts by attaching it briefly when the engine temperature is low while properly lining up all marks. After installing the timing belt guide and No. 1 timing belt cover, the starter wire bracket should be installed while inspecting all gaskets. Place the crankshaft pulley with required torque before installing and torquing the LH camshaft timing pulley while maintaining proper alignment. First set the No. 1 cylinder to TDC/compression position while installing the timing belt onto the LH camshaft timing pulley before adding the RH camshaft timing pulley with correct alignment requirements and appropriate torque levels. Set the timing belt tensioner then install it properly with the specified torque. Proceed to verify valve timing by rotating the crankshaft pulley two times while confirming timing marks align. Starting with the fan bracket and No. 2 timing belt cover and A/C compressor bracket installation (if applicable), the technician should proceed to attach the fan with fluid coupling and fan pulleys and No. 2 fan shroud before performing generator drive belt adjustment. Install the fan with both fluid coupling and fan pulleys then link the A/C compressor to the engine when present and locate the PS pump to the engine while maintaining correct torque settings. The service concludes with engine start-up for leak inspection followed by engine under cover installation and testing shifts between gears while checking for noise and slippage and smooth operation. Afterward perform an engine coolant recheck in the cylinder head.