You asked: ''What would be the purpose of a TOP plug if it is never used?''
The top plug is used in two situations:
1. When doing an oil change. Open the top plug and put oil in until it weeps out of the top plug, then it's full.
2. When checking the oil level and nothing comes out of the bottom plug you close the bottom plug and open the top plug. Then add oil, a quart or more, until oil weeps out of the top plug.
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Today's Featured Article - Restoration Story: 1951 Farmall H - by The Red (John Fritz). I have been a collector of Farmall tractors since 1990 when I first obtained part of the family farm in Eastern Indiana. My current collection includes a 1938 F20, 1945 H, 1946 H, and the recently purchased 1951 H. This article will focus on what I encountered and what I did to bring the 1951 NEAR DEATH Farmall H back to life.
... [Read Article]
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