Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Hello, and thank you for choosing Just Answer. My name is Donald.
Are you referring to your drive belt, or your deck belt?
Thanks for your reply. Do you have your model numbers available? With these numbers, I can pull up a diagram of your deck.
Thanks for these numbers. Let's see what you have.
Have you removed your left and right belt covers, to check the condition of your spindle pulleys?
What about your idler pulleys? None wobbly, or mis-aligned? Please keep in mind, that these are only troubleshooting questions.
Part #1 in the image above, is your idler arm. If you remove the spring from it, will it pivot freely back and forth, with little resistance.
Sometimes an idler arm will partially seize, preventing your belt from tighten properly.
Very good! Please let me know what you find, and we will continue from here. Just make sure your idler arm moves freely.
You have a great day ...