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Just closed on a B38 powered by 2002 6CTA’s with about 1500 hours. This is my first diesel boat so I’ve spent the last month or two pouring over this site and some others to get educated.
In 2016 the engines had heads rebuilt, turbos rebuilt, aftercoolers and heat exchangers serviced, and new injectors installed. One engine also had a piston, liner, rings, and bearings replaced and the other got a new belt tensioner and serpentine belt and had the exhaust pipe from the turbo to rubber boot rebuilt (not sure what happened there).
One engine blew a raw water hose during the sea trial, then in the second sea trial the other engine wouldn’t climb above 1900 RPM. However after the secondary fuel filters were changed the engines spun right up to just over 2600 and ran like a dream for several minutes with no issues.
My plan of attack is to change the motor and gear oil, change the zincs, racors, add a freshwater flush system, and replace any other hoses that look worn. Since the heat exchangers and coolers were done about 100 hours ago in 2016, i figured i could wait a year on doing those. I’m also going to go ahead and have about 100 RPM worth of pitch taken out of the prop. After all of the reading on this forum and others on the dangers of overloading these engines, and based on the fact that they seemed to have required a pretty major overhaul at 1400 hours, it seems to me like a prudent thing to do.
Is this logic reasonably sound? Anything else I should do right-away? Since he only did one of the belts should I go ahead and do the other? Thanks and I look forward to being a part of the community!
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