#1. No. The distributor drive does NOT get modified for an IH pump. The distributor drive is removed from the tractor, and the pump installed in its place.
#2. IMHO, the M&W and other aftermarket pumps do not have the output capacity to put significant stress on the timing gears. An IH pump has a much higher output and when a heavy load is placed on it, it can break cam gears.
#3. The front engine mounting plate needs to be changed to the updated Super M style to PROPERLY mount the IH pump. Some people have reported successfully mounting the IH pump on the old front plate by modifying one hole in the pump.
#4. Yes. The design was changed to the later style some time in 1950.
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Today's Featured Article - Two-Brush Generators - by Chris Pratt. Whether for product liability or because the aftermarket parts and labor business is lucrative, this concept is disturbingly prevalent. Fortunately when you step into your shop and make that jump 50 years back in time to work with your old tractor, this concept goes out the window. Even so, when it comes to the charging system, people quickly revert to this idea and start replacing the major components one at a time until it works. The reason you don't find any decals in your replacement set wit
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