How to Change a Nissan Altima Timing Chain

Replacing the timing chain on your car yourself can save you money

Regular maintenance is an important part of keeping your car in good running order. for years to come. After a certain number of miles, replacement of certain parts on your car will be necessary. Learning how to replace the timing chain on a Nissan Altima can save you money on costs charged by a mechanic.

Things You'll Need

• Car jack stands

Instructions

Replacing the timing chain

1. Locate the timing chain and look to see if it looks worn or damaged. Drain the cooling system and disconnect the negative battery cable.

2. Disconnect the spark plugs. Disconnect the vacuum and fuel hoses, harness and connectors, drive belts, power steering reservoir, engine undercover, alternator and bracket, upper radiator hose, front exhaust tube and the distributor.

3. Prop up the oil pan and remove the front engine mounting, the valve cover, camshaft sprockets, cam bearing caps, camshafts, cam sprocket cover, upper chain tensioner, chain guides and chain, idler sprocket bolt, cylinder head, intake manifold and cylinder head gasket and the steel oil pan.

4. Raise the car using a car jack stands. Reconnect the crankshaft sprocket, oil pump drive spacer, idler sprocket and lower timing chain. Place the lower timing chain on the sprockets and line up the mating marks.

5. Attach the upper timing chain to the idler sprockets and tighten the cylinder head bolts. Connect the negative battery cable and any other disconnected parts. Start the engine and check for any leaks.

References

• Nissan Altima: Owner's Manual