How to fill crankcse with oil in 47 flathead

[Tinker]

If you are talking about the cross over heat riser for the carb. Some guys block those with a pennies to limit heat to the carbs. But you have 3x2 setup and are asking about oil input. Why not make up a cap on where the fuel pump was and just pour it in there. Or get the right gasket? I would guess offy can help.