What is the diameter of the fresh air cowl vent opening?
I'm sure the 1" or so cylinder that protrudes into the cowl pan is to prevent water from entering the vents. Whatever water gets through the cowl grates it travels past the extended tube and out the drains between the cowl and the fender. If I remember, the vent has a tube extension that goes up inside the cowl opening. It has been a long time since I had mine out so my memory is a little cloudy as to what it looks like. If you don't have a welder (or access to one) may be someone here could make you a piece like the cardboard pattern you made. I would imagine your vent looks similar to this.
I'm sure the 1" or so cylinder that protrudes into the cowl pan is to prevent water from entering the vents. Whatever water gets through the cowl grates it travels past the extended tube and out the drains between the cowl and the fender. If I remember, the vent has a tube extension that goes up inside the cowl opening. It has been a long time since I had mine out so my memory is a little cloudy as to what it looks like. If you don't have a welder (or access to one) may be someone here could make you a piece like the cardboard pattern you made. I would imagine your vent looks similar to this.
