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Old 04-02-2014, 07:01 AM   #5
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City: Cape Coral FL\Grand Island NY
Country: US
Vessel Name: Missy
Vessel Model: 1997 Mainship 350
Join Date: Jun 2013
Posts: 189
Originally Posted by sunchaser View Post

On the Mainships a savvy prior owner would have successfully dealt with the brand specific issues such as exhaust system design problems (Yanmar) and after coolers (Cat). In both cases improper propping leading to overload will age the engine quickly.
The after cooler issue is unique to the 3126, not the 3116. The 3126 uses raw water cooling for the aftercooler, the 3116 uses engine coolant. This change provided for more HP, but also increased the risk of corrosion.
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