Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Hi, my name is***** will be assisting you.
Can you manually turn the engine over by hand? Will it turn all the way around when you do so?
Take a look up under the rear of the machine and make certain that everything looks okay. I have seen belts come loose or off of pulleys and cause this or bolts come loose and allow things to move which could cause a strain on the engine and not let it turn over.
There are at least two belts on this machine one for the hydrostat drive and one for the mower deck. I am including a picture of the two belts from the parts manual for a 60" Ariens Max mower.
I have another picture here.
Try this one again.
I am sorry the parts manual for this machine is actually showing three belts.
One for the hydro drive and two for the mower deck.
If you don't find any issues with the belts sometimes you can remove the belts from the engine pulley and it will help you to determine where the problem is at. Once you remove the load of the belts and other parts turning then the engine may turn easier.
I am afraid that based on what you have described you may have a broken connecting rod but I would check other external possibilities before taking the engine apart. Make certain that all belts are in good condition and not broken which could allow them to get wound up into the engine pulley and cause it to not turn freely.
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