I feel your pain. Our port outboard side of the port engine is really bad for working. I bought new raw water pumps since the OEM pumps are not very good. The starboard engine is easy. The port engine is a bugger. Formula puta small access hatch from the aft stateroom storage compartment to get to it. But you have to reach around the front of the engine. I bought a larger hatch and will cut the opening larger. Then pay the mechanic to install the new pump. Some things are beyond my scope of work anymore.
If you are one there is no explanation necessary.
If you arenít one, there is no explanation possible.