The camshaft must have been soft/defective from the start as this started pretty soon, maybe six months after the lady bought it she said. She was dependent on the local Deere dealer for keeping it up and doing oil changes and such. Apparently no one there looked at the used oil they drained out to see if metal shavings or particles were in it, It had many oil changes before I got it so I did not see any of the evidence of wear in the oil. That dealer sold out to retire and the new mega dealer doesn't have anyone that really seems to care one way or the other. At that time there was no reputable small engine repair shop here in the county, just shade tree tinkerers. She is the secretary/bookkeeper at one of the parts houses I frequent and asked me one day if I was interested in it. She had bought a new one from Sears and was through with it. Of course I was and she told me that it was at a guy's house who had been dabbling with it if I would just pick it from there I could have it. He had replaced the head gasket because he thought it was blown, but it did no good. So the engine was in pieces when I got it. It took me a while and several tries to figure this one out and honestly I was not expecting it to be a cam problem. On the third try out of desperation I was looking everything over again and was checking everything closely and noticed the valve lift on the exhaust valve was very little so I took the cam out and it was immediately obvious to me. The exhaust lobe was almost round but the intake lobe showed very little wear. I have not seen this on a Kohler engine before. This usually happened on Chevrolet especially the older 305 engines. This was a classic case of inheriting someone else mess. When I start on something like this I like to practice the old Indian guide's way, look for signs first.
I have a camshaft ordered and will replace the lifters as well. BTW they are interchangeable with SB Chevrolet lifter which are about 1/3 the price of OEM from Kohler.
As for the end of this story. I told the lady about it and asked if she wanted it back for the price of the repair and she said, I don't want it back at any price,I have had enough of it.
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Today's Featured Article - History of the Nuffield Tractor - by Anthony West. The Nuffield tractor story started in early 1945. The British government still reeling from the effects of the war on the economy, approached the Nuffield organization to see if they would design and build an "ALL NEW" British built wheeled tractor, suitable for both British and world farming.
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