bulkheads

In my opinion yes there is you say you have no problems with oil or other contaminants entering that area. But what if you have a leak develop a cracked fuel line or a broken oil line or a gasket go bad? Now you have removed tha containment area and the oil gas whatever drains straight to the bilge and is pumped overboard by a bilge pump. UH OH you are in big trouble with the CG EPA ETC ETC leave the bulkheads in my opinion trust me been there done that one the whole leak thing. Thank God for Chris Craft and the sealed area under the engine it contained the oil/water mix. I would keep the bulkheads and solve the drainage problem from the hatches in another way. I would think that the hatches should not be leaking down on the engine something else is amiss in my opinion. hey but the advice is free so take it for what it is worth.