A 340 has an engine design with wet sleeves. The method is to have the crank set so two are up and two are down. Remove the rod caps, and take the piston and cylinder out at the same time by driving them upward with a 2"X2" stick of hard wood and a mallet from below. Be careful not to nick the crank with the loose rod big end. Once they are an inch out, they are out. Clean the grooves for the O rings very well, and use new O rings lubed with silicone grease, or straight dish washing detergent. Make sure the rim relief in the deck of the block is also very clean. A bit of LPS corrosion inhibitor sprayed in that recess is good. JimN
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Today's Featured Article - Diagnosing Engine Difficulty - Diesel Tractors - by Staff. The following suggestions are listed for your assistance. You can make simple adjustments on your tractor that will improve its operation and save you the time and expense of hiring someone to do it for you. Always make one adjustment at a time, and if the adjustment made does not improve the condition, return to the original setting before proceeding to the next adjustment. Hard Starting Cold air temperatures. Insufficient fuel.
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