OEM 2000 Toyota 4Runner Timing Belt

2000 Toyota 4Runner Parts Questions & Experts Answers

• Q: How to remove the timing belt on 2000 Toyota 4Runner?

  A: The timing belt removal starts with removing engine under cover followed by draining engine coolant and disconnection of the upper radiator hose. Disconnect the PS pressure pump first by disconnecting two PS air hoses from the air intake chamber and resonator then unfastening the bolt from the pressure tube clamp mount to the frame before the generator drive belt and finally disconnecting the pump. The A/C compressor requires detachment from the engine through removal of its connector and drive belt and four bolts for vehicles with A/C system. Begin by loosening the fan that uses fluid coupling along with fan pulleys before removing the generator drive belt and then taking out the No.2 fan shroud and fan equipped with fluid coupling and fan pulleys. The five bolts holding the A/C compressor bracket must be removed when working on vehicles equipped with A/C. To remove the oil dipstick and guide you should remove the bolt and then extract the dipstick and guide as well as their O-ring. Begin removal of the No.2 timing belt cover by first disconnecting four high-tension cord clamps while taking out six bolts and then disconnecting the camshaft position sensor connector. First remove the nut from the PS pump adjusting strut then take out the bolt and nut and finally remove the fan bracket. This procedure requires SST 09213-54015 (90119-08216), 09330-00021 to loosen crankshaft pulley bolt before removing SST, pulley bolt and pulley through using SST 09950-50012 (09951-05010, 09952-05010, 09953-05020, 09954-05030). Take out the two bolts securing the starter wire bracket and the four bolts attached to the No.1 timing belt cover for removal. Apply the crankshaft pulley bolt to establish the No.1 cylinder at TDC/compression by rotating the crankshaft to achieve correct timing mark alignment while checking camshaft timing pulley orientation with the No.3 timing belt cover. When reusing a timing belt the technician should look for three installation marks and a front mark; if any of these marks are absent they should create new ones before removing the timing belt. Disassemble the timing belt tensioner assembly by both bolts while removing its components together with the dust boot until the timing belt becomes completely exposed. Use SST 09960-10010 (09962-01000, 09963-01000) to detach the camshaft timing pulley bolt from the RH side before its subsequent disassembly into separate bolt, knock pin and pulley parts. The procedure requires performing it again on the LH camshaft timing pulley. The No.2 idler pulley removal starts with unbolted the pulley but the No.1 idler pulley requires a 10 mm hexagon wrench to extract the pivot bolt followed by the pulley and plate washer. Before installing the crankshaft timing pulley, use SST together with a service bolt (if needed). Check the timing belt for any defects while confirming its straight condition as well as its avoidance of oil, water, steam, and proper physical installation and expected wear. You should inspect idler pulleys for oil leakage then verify their smooth operation while checking the timing belt tensioner for oil leaks and proper push rod operations. Install the crankshaft timing pulley through the key groove by using the pulley set key to slide it on. Fit the No.1 idler pulley using a 10 mm hexagon wrench so it moves freely before moving to the installation of the No.2 idler pulley. The LH camshaft timing pulley needs installation with SST to apply the bolt while maintaining knock pin alignment and facing the flange outward. Complete the same process with the RH camshaft timing pulley. Begin by setting the No.1 cylinder at TDC/compression position then install the timing belt correctly while aligning its timing marks. Use a hexagon wrench to lock the tensioner push rod before installing the tensioner and examine valve timing by rotating the belt until the timing marks suit. The procedure requires fitting the timing belt guide along with the No.1 timing belt cover and starter wire bracket but check for gasket integrity throughout installation. Mount the crankshaft pulley after proper realignment then apply the necessary torque values. Mount the fan bracket followed by No.2 timing belt cover and the oil dipstick and guide while placing soapy water on the O-ring. The installation of A/C compressor bracket must be completed before installing the fan with fluid coupling and fan pulleys in a temporary manner. After the placement of No.2 fan shroud proceed to adjust the drive belt for the generator before fan tightening with fluid coupling and fan pulleys. Ensure the A/C compressor engines connection then add the PS apparatus before making sure all components are in place securely. The maintenance procedure consists of installing the upper radiator hose followed by coolant addition to the engine compartment and engine start-up for leak inspection and subsequent engine under cover replacement and road test execution and repeat engine coolant level check.