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I have a 2003 380 with 8.1s. The aluminum manifolds have some salt accumulation, which caused an overheat condition on the outboard manifold in the port engine. My service guy has told me that the factory has a retrofit cast iron manifold (around $500 per manifold) that is now the recommended...

I have a 2003 380 DA with 8.1S Horizons. I mentioned this in a previous post, but would be interested in knowing how many out there routinely fresh-water flush their risers and manifolds. My service guy has suggested a flush attachment, and apparently Perko has a valve that looks like it...

First, thanks for the replies to my previous concerns. Being out of town, our boat sits for relatively long periods of time between uses. I do have a West Marine evaporator that I leave plugged in when we are not there, but I was thinking of having the AC cycle daily (or some period of time)...

I am new to this list, and have a couple of questions for the experts: 1. My engines are 8.1 Horizons. The port engine was overheating, which was traced to salt buildup in the seawater side of the cooling system. In reading the owner's manual, there is a procedure for "Flushing the Power...