Man, That thing looks like a B*$#@ to get to, mine is inboard of the portside engine mount on the inside of the stringer..........

Thanks for all the 496 help posted. I did everything you guys recommended. After I ran the anti freeze through, I removed the blue plug on the sea pump and also removed the blue plug on the front port cooler and than used my air compressor to blow in one of the open holes. Quite a bit of antifreeze came out of those coolers. I figured it was better to not have anything sitting in those lines.

Man I feel your pain. Starboard motor I can reach all 3 blue plugs. Port i can reach the high and low side on the raw water pump but the blue plugon the back of the fuel coler..... is almost imposible I had a skinny friend BARLEY reach it to drain. I cant emagine trying to replace that fuel pressure regulator or filer down there, pretty sure i woul dhave to pull the motor.

I live in alabama, my winters are short, so I dont fog the motors, I just drain the raw water sides, and let them sit.. I also have a bildge heater on just in case. but should be fine.