Replacing Your Hydraulic Timing Belt Actuator
The hydraulic timing belt actuator is a device that ensures that the timing belt of a vehicle is wound tight enough around the necessary gears of the engine. It does its job together with the timing belt pulley. As the name suggests, timing belts make sure that various components in the engine run smoothly in the correct order. A malfunction with the actuator can cause the timing belt to go slack which in turn means that the gears in the engine compartment won't properly rotate. A number of moving parts in the engine will then stop moving in sync with one another and this could lead to a catastrophic engine failure that could cost you thousands of dollars. Don't wait for that moment to happen, replace your timing belt actuator as soon as you sense a problem with it.
Difficulty level: Moderate
Tools that you'll need:
- Hydraulic timing belt actuator
- Socket wrench
- Screw Driver
- Allen wrench
Removing the old hydraulic timing belt actuator
Step 1: Locate the timing belt of your engine. Consult your vehicle's manual to do so. The timing belts of most cars can be accessed from the hood of your car while some can only be reached underneath. Other vehicles require the removal of a number of engine components before you can reach the timing belt. Make sure to do the necessary steps required.
Step 2: Locate the timing belt pulley. Just follow the timing belt around until you see it. The pulley is usually in contact with the smooth side of the timing belt. You can also see hydraulic timing belt actuator attached to it.
Step 3: Loosen the timing belt pulley to loosen the tension of the timing belt. Doing so may require different methods depending on the manufacturer so consult a manual.
Step 4: Remove the bolts securing the timing belt pulley and slide the pulley out of its housing or mount.
Step 5: Remove the bolts securing the hydraulic belt actuator before removing it as well.
Installing the new hydraulic timing belt actuator
Step 1: Secure the hydraulic timing belt actuator to its place by tightening the appropriate bolts. Be careful not to pull the hydraulic timing belt actuator's retaining pin.
Step 2: Reinstall the pulley and secure it.
Step 3: Put the timing belt back on the pulley and around the proper gears. Make sure it is tight enough and in its proper place. Crank the whole pulley a bit just to be sure.
Step 4: Remove the retaining pin attached to the hydraulic timing belt actuator.
Be sure that your engine is cool before working on it. If car your was running just prior to your installation attempt, then abort your repair attempt and leave it for about 30 minutes before trying again.
Do not remove the pin of the hydraulic timing belt actuator until it is installed in the engine. Doing so can mix up the air and the oil contained within. If the pin has be removed accidentally, put the actuator in an upright position and compress the piston rods to separate the oil and the air.