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How to Change Timing Belt on Honda Accord 1991

The timing belt on a car engine turns the camshaft, which opens and closes the valves in the cylinders. The valves let fuel into the cylinders as the pistons go down, and let exhaust out as the pistons go up during every other cycle. The timing belt is driven by the crankshaft of the engine, making the valve timing directly related to the speed of the engine. Changing the timing belt on a 1991 Honda Accord requires removing many parts of the engine, then reinserting those same parts in the right place after installation of the timing belt.

Instructions

1

Position the number one cylinder to top dead center of the compression stroke by turning the engines crankshaft. Remove the splash shield underneath the front of the vehicle by removing the 10 bolts holding it on.

2

Remove the cruise control actuator by unscrewing the six bolts holding it on. Unplug the connector, but do not unplug the control cable. Set the actuator aside so it is out of the way.

3

Take off the power steering pump by unscrewing the bolts holding it on. Remove the belt that turns the pump. Leave the hoses connected to the power steering pump and set it aside.

4

Remove the alternator belt by disconnecting the connector and wire harnesses. Unscrew the mounting and adjusting bolts in order to move the alternator to release tension from the belt. Remove the belt when it is loose enough.

5

Take off the valve cover by unscrewing the bolts holding it on. Check the rubber seals underneath the valve cover to see if they need replacement. Place a jack or a jack stand under the engine to support it and remove the mounting brackets on each side of the engine.

6

Remove the upper cover that shields the portion of the timing belt in front of the valve cover. Unscrew the adjusting nut located underneath the upper cover and the dipstick located to the left of the adjusting nut.

7

Take off the crankshaft pulley by removing the large, special bolt holding it in. Remove the lower cover behind the crankshaft pulley by removing the bolts holding it in place.

8

Remove the timing belt and balancer belt by moving the tensioner. Move the tensioner enough to loosen the belts so they can be easily removed.

9

Position the timing balancer belt driven pulley so that the groove on the pulley is lined up with the pointer on the oil pump. Place the new timing and balancer belts on the tensioner and move it back in place.

10

Add back the parts of the vehicle in reverse order of removal, starting with the crankshaft pulley. Once the parts are all put back together, you can loosen the adjusting nut on the tensioner to increase or decrease tension on the timing belt. Make sure the adjusting nut is tightened when you finish making adjustments.