The satisfying roar of a freshly tuned lawnmower is music to the ears of any homeowner. But what happens when that roar turns into a sputtering cough, and your trusty mower refuses to start? One common culprit is a worn-out recoil spring, the essential component responsible for starting your lawnmower. This article will guide you through the process of rewinding a recoil spring, bringing your lawnmower back to life and saving you a costly repair bill. We’ll cover everything from identifying the problem to the step-by-step process of rewinding the spring, ensuring you have the knowledge to tackle this common lawnmower maintenance task.
Understanding Recoil Springs and Why They Need Rewinding
Recoil springs are vital for starting a lawnmower. They work by storing energy when you pull the starter cord, then releasing that energy to crank the engine. Over time, these springs can lose their tension due to repeated use, making it harder to start the mower. This can manifest as a weak pull, a slow crank, or even the inability to start the engine at all. The good news is that rewinding a recoil spring is a relatively simple procedure, and can often be done with basic tools.
Identifying the Problem: Is Your Recoil Spring the Culprit?
Before you dive into rewinding the spring, it’s essential to confirm that the problem truly lies with the recoil spring. Other factors can cause starting issues, including:
- Fuel Issues: Make sure you have fresh fuel and that the carburetor is clean.
- Spark Plug: A fouled spark plug can prevent your mower from starting.
- Clogged Air Filter: A dirty air filter can restrict airflow to the engine.
If you’ve ruled out these possibilities, and the pull cord feels weak or you hear a grinding noise during cranking, it’s likely that your recoil spring needs rewinding.
Rewinding a Recoil Spring: A Step-by-Step Guide
1. Gather Your Tools:
- Screwdrivers: You’ll need a variety of screwdrivers (flathead and Phillips head) to remove the cover and access the recoil spring.
- Pliers: Pliers will be useful for gripping and manipulating the spring.
- Wrench: You may need a wrench for removing any nuts or bolts securing the recoil assembly.
- Gloves: Protecting your hands with gloves is always a good idea.
- Recoil Spring Rewinding Tool: This specialized tool helps to rewind the spring safely and efficiently.
2. Disassemble the Recoil Housing:
- Remove the Cover: Start by removing the cover of the recoil housing. This usually involves removing screws or clips that hold it in place.
- Unwind the Spring: Carefully unwind the spring from the recoil housing. It’s crucial to be gentle and avoid stretching or damaging the spring.
3. Rewind the Spring Using a Rewinding Tool:
- Insert the Spring: Place the spring in the rewinding tool, ensuring it’s correctly positioned.
- Wind the Spring: Use the tool to wind the spring back to its original tension. The tool will typically have a crank or lever to assist with this process.
4. Reassemble the Recoil Housing:
- Install the Spring: Once the spring is fully rewound, carefully install it back in the recoil housing, ensuring it’s properly seated.
- Replace the Cover: Reattach the cover to the recoil housing, ensuring all screws or clips are securely fastened.
5. Test the Recoil:
- Pull the Cord: Pull the starter cord a few times to check if the spring is working correctly. You should feel a smooth and consistent resistance.
- Start the Engine: Attempt to start the lawnmower. If the recoil spring is properly rewound, the engine should start as usual.
Tips for Rewinding a Recoil Spring
- Take your time: Patience is key when rewinding a spring. Rushing the process can result in a poorly wound spring or even damage.
- Wear gloves: Recoil springs have sharp edges, so wearing gloves can protect your hands.
- Use the right tool: A specialized rewind tool makes the process much easier and safer than trying to wind the spring manually.
- Inspect the Spring: Before reinstalling the spring, carefully inspect it for any signs of wear or damage. If the spring is broken or severely worn, it should be replaced.
When to Replace a Recoil Spring
While rewinding a spring can be an effective solution for a worn-out recoil spring, there are situations when it’s best to replace the spring entirely:
- Significant Wear: If the spring is severely stretched or has visible signs of damage, rewinding it may not be enough.
- Spring Fatigue: Repeated rewinding can weaken the spring material, making it less effective.
- Repeated Issues: If you find yourself rewinding the spring frequently, it’s a sign that the spring is nearing its end of life.
Common Mistakes to Avoid When Rewinding a Recoil Spring
- Not using a rewind tool: Trying to wind the spring manually can be dangerous and lead to an improperly wound spring.
- Overstretching the spring: Stretching the spring beyond its limit can damage it and make it less effective.
- Incorrect installation: Ensure that the spring is properly installed in the recoil housing. A loose or improperly positioned spring won’t function correctly.
Final Thoughts
Rewinding a recoil spring is a simple but essential maintenance task that can save you money and keep your lawnmower running smoothly. By following the steps outlined in this guide, you can bring your lawnmower back to life and enjoy the satisfaction of a job well done. Remember to prioritize safety by using the appropriate tools and taking your time, and always consult your lawnmower’s owner’s manual for specific instructions. With a little effort, you can keep your lawnmower running strong for seasons to come!
FAQ
What is a recoil spring and why does it need to be rewound?
The recoil spring is a vital part of your lawnmower’s starting mechanism. It’s a coiled spring that stores energy when you pull the starter rope, and releases that energy to spin the engine crankshaft. Over time, the spring can lose its tension and become weak, making it harder to start the mower. Rewinding the spring restores its tension, making starting easier and preventing damage to the starter mechanism.
How do I know if my recoil spring needs rewinding?
There are several signs that indicate your recoil spring needs rewinding. If you notice the starter rope feels loose or floppy, if the engine is difficult to start, or if the starter rope doesn’t recoil smoothly, these are all indications that the spring may be worn out.
What tools do I need to rewind a recoil spring?
To rewind a recoil spring, you will need a few basic tools. These include a Phillips screwdriver, a pair of pliers, and a flathead screwdriver. You may also need a wrench or socket set depending on the type of recoil assembly on your lawnmower.
How do I remove the recoil assembly from the lawnmower?
The first step is to disconnect the spark plug wire to prevent accidental starting. Then, locate the recoil housing on the side of the engine. There will usually be a series of screws or nuts holding the assembly in place. Use your tools to remove these fasteners and carefully lift the recoil assembly off the engine.
How do I rewind the recoil spring?
Rewinding the recoil spring can be a bit tricky. You will need to carefully detach the spring from the housing and feed it back onto the winding mechanism. Be sure to wind the spring in the correct direction, which is usually clockwise. Once it’s fully wound, reattach it to the housing and ensure it’s securely fastened.
What safety precautions should I take when rewinding a recoil spring?
Safety is paramount when working with machinery. Always wear eye protection and gloves to protect yourself from any potential hazards. Avoid touching the spring while it’s under tension, as it can release with considerable force. Make sure the engine is off and disconnected before attempting any repairs.
What should I do if I can’t rewind the recoil spring myself?
If you are uncomfortable or unable to rewind the recoil spring yourself, it’s best to take your lawnmower to a qualified mechanic. They have the tools and expertise to perform the task safely and efficiently. Don’t attempt to use the mower until the spring is properly rewound, as this could lead to further damage or injury.