It is in an insulated case. I'm actually trying to find a tech that will tell me it can be fixed in situ rather than chucking it. The last tech that came to see it couldn't figure out a fix for the errors and said that the rotor had to be re-wound and so it wasn't worth doing.
As life would have it, or "this being a boat...", I need to take off the heat exchanger to clean it because I'm getting too hot at full throttle. If I do need to replace the generator, now would be a good time because removing the heat exchanger would likely open up enough room to remove it as one piece.
Of course, the $6,000 for a new geny and the $2,000 to clean the heat exchanger may force me to delay this endeavor until next season.
You should try the liquid cleaner method for cleaning the heat exchangers. Cummins makes a good one. Maybe Cat too
Well, my Volvo diesel mechanic says it's a pain to remove the heat exchanger because he needs to remove the turbo and the oil cooler first. Then he takes it to the shop for a cleaning with something called Rydlyme.
I don't know how bad it is but my research seems to indicate that even young engines like this 7 year old D4 are having to have the heat exchangers cleaned way too soon due to a design flaw.
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I don't know how bad it is but my research seems to indicate that even young engines like this 7 year old D4 are having to have the heat exchangers cleaned way too soon due to a design flaw.