how to adjust valves on craftsman lawn tractor

Craftsman lawn tractors are popular among homeowners for their ease of use and durability. However, like any other piece of equipment, lawn tractors require regular maintenance to perform at their best. One common maintenance task is adjusting the valves, which should be done at least once a year. In this article, we will go over the steps to adjust valves on a Craftsman lawn tractor.

Step 1: Prepare the Tractor

Before starting any maintenance work on your lawn tractor, make sure it is turned off and the key is removed. Next, lift the hood to access the engine compartment. Locate the valve covers and remove them using a socket wrench. Set the valve covers aside in a safe place.

Step 2: Check Valve Clearances

To check the valve clearances, you will need a feeler gauge. Insert the feeler gauge between the valve stem and the rocker arm. The gauge should slide in but not be loose. If the clearance is incorrect, adjustment is necessary. Record the measurements for each valve.

Step 3: Adjust the Valves

To adjust the valves, use a wrench to loosen the lock nut on the rocker arm adjuster. Once the lock nut is loose, turn the adjuster screw until the feeler gauge fits snugly between the valve stem and the rocker arm. Tighten the lock nut to secure the adjuster screw in place. Repeat this process for each valve.

Step 4: Reassemble the Tractor

Once all the valves have been adjusted, reassemble the tractor by installing the valve covers and tightening them with a socket wrench. Lower the hood and start the tractor to make sure it runs smoothly. If there are any issues, you may need to double-check the valve clearances and adjust them again.

Conclusion

Adjusting valves on a Craftsman lawn tractor is an important maintenance task that can help keep your machine running smoothly for years to come. By following these simple steps, you can ensure that your tractor is properly adjusted and ready for the next mowing season. Remember to refer to your owner's manual for specific instructions and to follow all safety precautions when working on your lawn tractor.