Oct 022010

When I removed the heater coolant loop I found two very bad things:

  1. It was green.
  2. It had gunk in it, likely small amounts of settled oil.

Now.  Why is it being green bad you ask?  It is because the DT466, while a magnificent engine, is prone to various issues if one uses improper fluids or simply doesn’t change them out when scheduled.  Green antifreeze is /not/ what makes the engine happy.  Green antifreeze is what makes the sleeves eat through rapidly due to cavitation.

The second problem, the gunk?  Yeah, fairly obvious do-not-want issue. 😛

Worst case was I have to do a rebuild, looks more likely that will be the case.  Roughly $1100 and I get to basically start new on engine wear.  Not a bad deal.

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