The engine has been overheating when pushed hard, so I was thinking that it was a reduced cooling capacity rather than an outright problem. I started by replacing the seawater hoses from the through-hull to the strainer and strainer to the v-drive. Jon replaced the hose from the pump to the heat exchanger, I replaced the hoses from the heat exchanger to the anti-siphon fitting and anti-siphon fitting to the exaust elbow. Jon soaked the heat exchanger, oil cooler, and transmission oil cooler in muriatic acid. I replaced the impeller when I added the speedseal cover. I soaked the anti-siphon fitting in muriatic acid. There was no way of telling how corroded the exhaust fittings were without taking them apart. In order to take it apart we had to cut it off with the grinder, so then we had to replace it regardless of the condition. I pieced together all the necessary fittings out of galvanized steel from a great hardware store over in Alameda called Pagano’s (it’s close to Svendsens, so convenient). One of the guys at Svendsen’s warned me that it might kill us to use galvanized (as opposed to bronze or stainless), and I know that the galvanized coating is dangerous when it gets hot enough to burn off, but a) I doubt it gets hot enough b) the previous fittings were galvanized c) I’m not paying $300 for bronze fittings for our exhaust elbow. We can’t afford to be cancer free!
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