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How to Install a Timing Chain on a Toyota 22 RE

The 22R-E engine appears in several Toyota vehicles with front-wheel drive from 1983 to 1995. This engine designation indicates the engine is the 22nd generation in the R engine family and has electronic fuel injection. The Toyota 22RE engine uses a metal timing chain to keep the crankshaft synchronized with the camshaft. The most critical part of this procedure is aligning the timing chain when you install it on the crankshaft and camshaft sprockets.

Instructions

1

Disconnect the cylinder head bolts with a socket wrench. Insert a pry bar under each end of the cylinder head, and caully pry it away from the engine block. Lift the cylinder head off the mounting dowels, and remove it from the vehicle. Discard the cylinder head gasket, and remove any traces of the cylinder head gasket from the engine block with a gasket scraper.

2

Place a container under the radiator, and open the drain hole to drain the coolant from the radiator into the container. Replace the drain plug, and store the coolant for later use. Remove the mounting bolts from the radiator with a socket wrench, and detach the radiator from the vehicle.

3

Disconnect the oil pan with a socket wrench. Detach the drive belt for the power steering pumps and air conditioning compressor from their respective pulleys, if your vehicle is so equipped. Remove the drive belt for the water pump. Disconnect the cooling fan and its clutch from the engine.

4

Make matching marks on the crankshaft pulley and the crankshaft to ensure you can correctly install the pulley later. Hold the crankshaft in place with a counter-holding bar, and remove the central mounting bolt on the crankshaft pulley with a socket wrench. Detach the pulley from the crankshaft with a gear puller.

5

Disconnect the water bypass pipe from the engine block, and remove the adjusting bar for the cooling fan belt. Remove the bracket for the power steering pump with a socket wrench, if your vehicle is so equipped. Disconnect the water outlet hose from the engine.

6

Remove the mounting bolts from the cover for the timing chain with a socket wrench, and disconnect the cover. Detach the timing chain from the crankshaft sprocket, and remove the timing chain from the camshaft with the camshaft sprocket still attached. Remove the timing chain and camshaft sprocket from the vehicle. Detach the splines for the oil pump and the crankshaft sprocket from the crankshaft.

7

Rotate the crankshaft so that its key points straight up, and slide the crankshaft sprocket onto the crankshaft. Mount the new timing chain to the crankshaft sprocket so the single bright link on the new timing chain aligns with the timing mark on the crankshaft sprocket. Mount the new timing chain to the camshaft sprocket so the link between the two bright links on the timing chain aligns with the timing mark on the camshaft sprocket.

8

Turn the camshaft sprocket counterclockwise by hand to take up the slack in the timing chain. Connect the splines for the oil pump onto the crankshaft with a bearing installing tool. Install new gaskets for the timing chain cover, and place the cover into position. Tighten the 8mm mounting bolts on the timing chain cover to 9 foot-pounds with a torque wrench. Tighten the 10 mm mounting bolts to 29 foot-pounds.

9

Connect the alternator adjusting bar to the timing chain cover, and tighten its mounting bolts to 9 foot-pounds with a torque wrench. Attach the water outlet pipe from the heater to the engine. Mount the crankshaft pulley to the crankshaft, using the marks you made in step four as a guide. Hold the pulley in place with the counter-holding tool, and tighten the central mounting bolt for the crankshaft pulley to 116 foot-pounds.

10

Attach the drive belt for the air conditioning unit, if your vehicle is so equipped. Connect the pulley for the water pump with a socket wrench. Install the air conditioning bracket and compressor if you removed them earlier. Connect the belt for the power steering pump, if your vehicle is so equipped. Install the oil pan.

11

Install the radiator, and ill it with coolant. Replace the cylinder head.