The 4320 had a rear end problem if it was turned up to 180 hp. Something comes loose in a planetary, catches in the bull gear and goes out the bottom of the axle housing. I was driving a 4320 for a farmer when that happened. Heard a crunch, stopped got out and saw oil draining out and running down the corn rows. A neighbor had the same thing happen with his turned way up 4320. That is what I would consider extreme abuse though. Good testament to that little ol 404 though. It keeps on running when turned way up past factory HP.
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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