Question about Craftsman 21 Hp 42" Deck, Ys 4500 Lawn Tractor

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To whom it may concern, I have a 42" Deck Craftsman Lawn Mower which I bought 10 years ago. Last year, when ever I going over tall grass, excessive smoke came out of the exhaust. I kept loosing oil. At time, the engine looked like it is about to be on fire. After some research and questions from friends, I realized that it is time to change piston rings. Last week, I took the engine apart to replace the rings and put the engine back according to how I took it apart. I was very proud of my self since I never work on engine to this extend before. Yesterday, I was looking forward to starting it, however, it did not turn over at all. Battery power was there. I hooked it to a running car for power, with the battery on the tractor of course. All I heard was a single click from the starter. The fly wheel did not turn even I tried to turn it with a metal bar and a wrench. A friend told me that when putting the engine back, I must have missed the "Top Dead Center?", therefore, the engine will not crank. Would you kindly point me to the right direction if I take it apart again and put it back properly. Is there a mark somewhere I should follow in side the engine crank shaft, crank case, etc.. Is there an instruction I can purchase for someone who know very about engine but willing to work on it due to my interested in fixing and learning. Thank you for your assistant! Tri

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Recommend going to auto parts store and getting a small engine repair manual. Or, if time is not an issue, most repair manuals can be ordered online. Try M & D Mowers. Very inexpensive.

Posted on May 15, 2009

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Posted on Jan 02, 2017

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