This is a general procedure. Consult a repair manual specific to your 1989 Mercury Tracer 1.6L SOHC for precise details, torque specifications, and diagrams. A Haynes or Chilton manual is a good investment.
Tools You'll Need (at minimum):
* Timing Belt Kit: This usually includes the timing belt, tensioner pulley, and idler pulley(s). Buy a complete kit from a reputable parts supplier.
* New Water Pump: Replace this while you're in there; it's relatively inexpensive and saves you labor in the future.
* Socket set (metric): Various sizes.
* Wrench set (metric): Various sizes.
* Torque wrench: Essential for proper tightening.
* Jack and jack stands: Safety first!
* Wheel chocks: For added safety.
* Pry bar: May be needed for stubborn components.
* Ratchet and extensions: To reach tight spots.
* Pliers: Needle-nose and regular.
* Screwdrivers: Phillips and flathead.
* Drain pan: For coolant.
* Clean rags: To keep things tidy.
* New coolant: The correct type for your engine.
* Shop manual: Absolutely crucial for torque specs and detailed instructions.
Procedure (General Outline - Consult your manual for precise steps):
1. Safety First: Disconnect the negative battery cable. Raise the vehicle securely using jack stands. Place wheel chocks on the remaining wheels.
2. Drain Coolant: Drain the coolant from the radiator and engine block.
3. Access the Timing Belt: This usually involves removing various components like the serpentine belt, pulleys, and possibly parts of the front cover. Your manual will guide you on this.
4. Mark Timing Belt Position: Before removing the timing belt, carefully mark the position of the crankshaft and camshaft sprockets relative to each other and their respective marks on the engine block. This is critical for proper reinstallation.
5. Remove Timing Belt: Loosen the timing belt tensioner and carefully remove the belt.
6. Remove Water Pump: This typically involves removing bolts holding it to the engine block. Be prepared for coolant leakage.
7. Install New Water Pump: Install the new water pump, ensuring a proper seal.
8. Install New Timing Belt: Install the new timing belt, aligning the marks you made earlier precisely. Tighten the tensioner according to your manual's specifications.
9. Reinstall Components: Reinstall all the components you removed to access the timing belt.
10. Refill Coolant: Refill the cooling system with the correct type and amount of coolant. Bleed the air from the system (consult your manual for this procedure).
11. Test Run: Start the engine and check for leaks. Let the engine run for a while to ensure the temperature is stable.
Important Considerations:
* Timing Belt Alignment: Improper timing belt alignment can cause catastrophic engine damage. Take your time and double-check everything.
* Torque Specifications: Use a torque wrench to tighten all bolts and nuts to the manufacturer's specifications. This is crucial to prevent leaks and damage.
* Water Pump Seal: Ensure the new water pump gasket or seal is properly installed.
* Coolant Type: Use the correct type of coolant for your engine.
This is a simplified overview. Always refer to a repair manual specific to your 1989 Mercury Tracer 1.6L SOHC engine for detailed instructions and torque specifications. Ignoring this advice could result in costly engine damage. If you are not comfortable performing this repair, take your vehicle to a qualified mechanic.
