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Rust in drainage I suspect the anti freeze has not been changed in several years. The one block drain on each side that I was able to drain netted about 1-2 teaspoons of rusty material. So not changing fluid isn’t good.

Thanks for the info Our local cat shop gave a choice of 1 year or (2or more years). Since this was the first time that I changed fluid since I got the boat (3 years) and no telling how long before that, I wanted to see what shape the fluid was in. I had a fluid leak on each engine...

Cat3208 There are 2 block drain plugs on either side, aft. I couldn’t get to the outboard side on each engine, so I couldn’t drain completely. That’s why I flushed with fresh water 3 times. There also is drain plugs on each exhaust manifold. I couldn’t get the plug out. I think that flushing...

After searching for info on changing antifreeze and finding some info , I thought a pic of the setup used to change that I used. I was able to fill empty 1 gal containers without a lot of spill. Because of the tight quarters I only was able to get to one side of each engine, so did not drain old...