If your John Deere tractor is smoking heavily and has a Briggs & Stratton engine, I can guarantee you that the head gasket is damaged. pistons and valves. This is a known issue and if you search YouTube you will find many videos explaining how to change it. No special tricks or tools you need. The only part of the job you need to pay attention to are the pushers. One is steel and the other is aluminum, so make a note of which one is on top when you take them off. You'll know because steel is significantly heavier. I have a lot of experience with engines, but I promise you this is an extremely easy task for any sane person. Even if you didn't have the tools, you could buy the tools and get the job done for less cost and money than having to pay someone. All you need is a set of extension sockets, some screwdrivers and a flat razor to scrape off the old gasket. The products were of good quality. They weren't as good as the OEM gasket in my opinion, but I had confidence in them and haven't had any problems since I installed them three months ago. My friend has the same tractor with the same problem and I just asked him to order these gaskets.
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