Don't remember any details about the engine block in previous post. Do know that all replacement engine blocks that I was inside with a cast # of 365586R1 and C248 on the side have a block bore size the same as C 264 and C281 engines. That is larger than regular M engines. Posting pic of 2 cam gear numbers and a cam #. Cam # is a original equipment on farmall 400 and part of the 450 tractors. Cam numbers that end with D came in M, SM tractors, already said what DA came in, DB was in about 2/3 of 450 tractors and used left hand thread on cam gear for gear retaining nut. You can see the cam gears have holes so the cam retaining bolts can be accessed through holes. Cam and gear can be removed and installed as a unit. If there making a aftermarket cam gear or what CIH is selling without holes now, If someone knows the answer It would be appreciated?
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Today's Featured Article - Timing Your Magneto Ignition Tractor - by Chris Pratt. If you have done major engine work or restored your tractor, chances are you removed the magneto and spark plug wires and eventually reached the point where you had to put it all back together and make it run. On our first cosmetic restoration, not having a manual, we carefully marked the wires, taped the magneto in the position it came off, and were careful not to turn the engine over while we had these components off. We thought we could get by with this since the engine ran perfectly and would not need any internal work. After the cleanup and painting was done, we began reassembly and finally came to t
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