This is from a F Series Operators manual Printed July 19, 1949. Maintenance fan- 5,000 miles. Turn fan until plug is at the top. Remove plug and add 1oz. *ENGINE OIL. Turn fan until hole is at bottom to drain excess oil. Install Plug.
Inside the fan is tube around the plug that will only leave a certain amount of oil inside the fan, when the plug is the down position. There is 2 gaskets that are $2 a piece. Can send pictures if interested. Just rebuilt one for my truck.
1950 Ford F-1 Flathead V-8
1968 Ford F-100 Base 390 4Bl390 Crank and Rods, Stage 1 Cam, 66' Fairlane intake, Floor Shift, Headers, 3" Glasspacks, Torsen Differential
2000 Ford F-350 XLT V10Morosso Spiral-Flow
1957 Little Gem 17' Camper
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