The engines with the piston oil spray use a higher volume pump. Example 20 and 2290 with a 504 have the small crank and smaller oil pump, 23 and 2590 have large crank high volume pump and oil spray. The 1470 had large crank, no spray and small pump. Early 12 small crank, small pump, no spray. Late 12 had small crank ,BIG pump and spray. Are you confused yet? Early 13 was like the 14. Late 13 all 15,24 26, 23,25, 44, 46 all had big crank, big pump and spray. Rod.
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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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