I bought one in about 1977 with an 8hp Tecumseh. That engine lasted a few years and then sent the rod through the side of the block. I bought an externally identical 10hp engine, but the output shaft was larger than the 8hp, so the original pulley would not work. Since one of the main problems I had with the original setup was that in heavy tilling, I could wear out a new drive belt in an afternoon, I decided to put on a larger pulley. I got the smallest 2 piece pulley I could find that would fit and added the proper sized belt.
It worked OK, but I would not say good. With the larger engine pulley, the tines turned quite a bit faster. This was OK most of the time, but I found that if I hit a small rock just right, the tiller would shoot the rock out the back with dangerous force. I had to make some shin guards out of plastic sewer pipe to safely till my garden. At least I didn"t have to buy a new belt so often. I also got the snow thrower attachment, and it would sure toss snow a long way.
I thought it was poor engineering to have used so small of a primary drive belt and also to use such a small diameter engine pulley. What they should have done was to increase the size of both the engine pulley and the pulley it drove. That original setup would smoke a primary belt really fast. Maybe they engineered it as they did so the primary belt would slip fairly easily if it encountered anything tough, rather than breaking something else. I never had any trouble with the rest of the machine. I would not say that it was easy to till with it though.
I now have a repowered Troy-Bilt. It is a lot easier to use than the Roto-Hoe. But then, when both were new, the Troy cost about twice as much as the Roto-Hoe. Good luck!
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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