Tools You'll Need:
* Socket wrench that fits the crankshaft bolt: This is usually a large size (likely 19mm or 22mm, but double-check your car's specs). Make sure it's a good quality one that won't strip.
* Breaker bar: A long breaker bar provides significant leverage to break the bolt loose.
* Ratchet: To turn the wrench after you've broken the bolt loose.
* Torque wrench: Essential for tightening the bolt to the correct specification after you've reinstalled the timing belt.
* Jack and jack stands: To safely lift the car.
* Wheel chocks: For added safety.
* Proper size wrench for the crank pulley bolt Some have a special tool required. You might need a puller.
* Penetrating oil (like PB Blaster): Soak the bolt liberally several hours or even overnight before attempting to remove it. This significantly helps loosen seized bolts.
* Possibly a harmonic balancer puller: if the harmonic balancer is stuck on.
Procedure:
1. Safety First: Disconnect the battery's negative terminal. Use jack stands to securely support the car after jacking it up. Engage the parking brake and use wheel chocks.
2. Access: You'll need to access the crankshaft bolt. This usually involves removing the lower timing belt cover (if there is one), and possibly other components, to get a clear shot at the crankshaft pulley bolt.
3. Penetrating Oil: Apply penetrating oil generously to the crankshaft bolt. Let it soak in for several hours, or even overnight. Reapply it as needed.
4. Prevent Crankshaft Rotation: This is the *crucial* step. The crankshaft must be absolutely prevented from rotating while you try to loosen the bolt. There are a few ways to do this:
* Manually: Have someone hold the wrench on the crankshaft pulley while you loosen the bolt. This is unreliable.
* Using a wrench on a properly fitting bolt on the harmonic balancer This will require a second wrench.
* Using the starter: If the transmission is in neutral, and you can get a very strong socket on the crankshaft pulley nut, it may be possible to momentarily engage the starter to hold it in position (someone must turn the starter only for seconds at a time). This is NOT recommended if you're not experienced! The risk is considerable.
5. Loosening the Bolt: Use the breaker bar on your socket. Apply steady, firm pressure. Don't yank or you could strip the bolt head. If it doesn't budge, reapply penetrating oil and try again later.
6. Removing the Bolt: Once the bolt is loose, remove it with the ratchet.
Engine Mounts:
On a 1997 Dodge Stratus, you will probably not need to remove the engine mount to change the timing belt. However, it depends slightly on the accessibility of the crank bolt and how much space you need to work. Some individuals find it easier to slightly lift the engine to gain enough clearance. Access to the belt may be obstructed without lifting the engine very slightly. Access is the key factor here. Carefully consider this.
Important Notes:
* Torque Specs: Once the timing belt is replaced, tighten the crankshaft bolt to the manufacturer's specified torque. Use a torque wrench! This is critical to prevent future problems.
* Timing Belt Replacement Procedure: There are many detailed online tutorials and videos for changing a 1997 Dodge Stratus timing belt. Refer to a reputable repair manual or video for detailed instructions specific to your vehicle. Getting the timing belt wrong can cause serious engine damage.
* Professional Help: If you're not comfortable working on cars, or if you're unsure about any step, it's best to take your car to a qualified mechanic. The cost of a repair due to a mistake is almost always greater than the cost of professional labor.
Remember to always prioritize safety when working on your vehicle. Good luck!
