![]() Refill the cooling system:Ĭlose the radiator drain valve and refill the cooling system with the appropriate coolant. Reinstall any accessories and components removed earlier in the process, such as the radiator, fan, fan shroud, drive belts, and air intake assembly. Use a harmonic balancer installer to reinstall the harmonic balancer onto the crankshaft. ![]() Torque the bolts to the specified values in your service manual. Reinstall the timing cover:Īpply a new gasket or gasket maker, and reinstall the timing cover. Ensure that the timing marks are properly aligned and the chains are correctly tensioned. Install the new timing chains:Īlign the timing marks on the camshaft and crankshaft sprockets, and install the new timing chains. Replace any damaged components, and install new timing chain tensioners and guides. Inspect the camshaft and crankshaft sprockets for wear or damage. Inspect and replace necessary components: Release the tension on the timing chains, and then carefully remove them from the camshaft and crankshaft sprockets. Remove the bolts holding the timing chain tensioners and guides in place, and remove them from the engine. Remove the timing chain tensioners and guides: This ensures proper alignment of the camshafts and crankshaft during the timing chain replacement. Rotate the crankshaft until the number one piston is at TDC on the compression stroke. Remove all the bolts securing the timing cover and carefully remove it from the engine. Use a harmonic balancer puller to remove the harmonic balancer from the crankshaft. In some cases, you may also need to remove the power steering pump, A/C compressor, or other accessories to gain better access to the timing cover. ![]() This may include the air intake assembly, fan, fan shroud, radiator, drive belts, and alternator. Remove the radiator cap and drain the coolant by opening the drain valve located at the bottom of the radiator. Disconnect the battery:īefore starting any work on the engine, disconnect the negative battery cable to ensure safety. Consult the appropriate service manual or an expert mechanic for detailed instructions. However, if you have advanced mechanical knowledge and the necessary tools, here’s a general outline of the steps involved in replacing the timing chain:ĭisclaimer: This is a general guide, and the exact process may vary depending on your specific vehicle’s make, model, and year.
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