OEM 2002 Toyota RAV4 Timing Chain Tensioner

2002 Toyota RAV4 Timing Chain Tensioner Parts Q&A

• Q: How to service and repair the timing chain tensioner on 2002 Toyota RAV4?

  A: Before servicing the timing chain tensioner start with oil drain and the removal of the RH engine under cover and all other listed components in sequence along with both PCV hoses detachments then 8 bolts and 2 nuts removal. First, set No. 1 cylinder to TDC/compression by adjusting the crankshaft pulley alignment to timing mark 0 then check both camshaft and VVT timing sprocket marks; if misalignment occurs adjust the crankshaft by one revolution for accuracy. You will need Special Service Tools 09213-54015 and 09330-00021 to detach the crankshaft pulley which leads to the removal of the chain tensioner and drive belt tensioner along with the crankshaft position sensor and oil pan and timing chain cover without causing damage to any contact areas. Starting at the crank angle sensor plate move to remove the chain tensioner slipper and chain vibration damper alongside the timing chain guide, timing chain, crankshaft timing sprocket, camshaft timing sprocket, and VVT timing sprocket followed by avoiding the disassembly of the VVT timing sprocket. The inspection includes checking timing chain elongation and sprocket wear levels so replacement is required when measurements exceed 1.0 mm. Also inspect chain tensioner slipper and vibration damper wear levels, and replace when above 1.0 mm. The installation of a crankshaft front oil seal requires tool 09309-37010 when the timing chain cover is taken off but uses tool 09308-10010 if the cover stays in place. Start installation by fitting the camshaft timing sprocket and VVT timing sprocket while maintaining ideal alignment and torque as per specifications followed by recurring the No. 1 cylinder to its TDC/compression position. During installation install the chain vibration damper with crankshaft timing sprocket and timing chain and timing chain guide as well as chain tensioner slipper and crank angle sensor plate and timing chain cover. Seal packing (Part No. 08826-00080) should be used properly alongside the tightening of all bolts and nuts to specified torque values. Secure the drive belt tensioner along with crankshaft position sensor and oil pan and crankshaft pulley by using Special Service Tools: 09213-54015, 09330-00021 according to torque specifications. Begin by installing the chain tensioner before setting chain tension and verifying valve timing then start the installation process by returning the cylinder head cover, ignition coils, vane pump, generator and all remaining components that include the RH engine mounting insulator, drive belt, ABS actuator, air cleaner assembly, and engine under cover. Complete the task by filling the engine with oil, starting the initial engine operation and leak detection followed by a second check of engine oil level.