Morgan never managed water issues properly, whether there's a box under a drain or not. The laterTrads have drains emerging from the heater box, which are improved by adding a length of clear tubing. Its such a simple inexpensive add-on that it makes no sense not to have done it in build.
Ignoring the fact that louvres will soak the engine in wet weather never made sense, when a simple cover would fix it. Thats the Morgan way.
