Join Date: Nov 2010
Location: Jacksonville, Fl
Thanked 21 Times in 16 Posts
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Harborless Diesel Prognosis
Good day Sailnet. This is the long awaited follow up thread to the much dramatized, but highly accurate, My Horror Story thread. I apologize the time has been lengthy but with memorial day and a tropical storm things have been hectic.
Here is what has been causing me SO MUCH angst and concern for 2 years.
It was a crankcase breather Baffle installed upside down. Thats it.
The previous owner had the engine rebuilt and the guy who put it back together installed this piece upside down (VERY easy to do actually).
This created a sump of oil instead of a drain.
So when I would run the engine oil would accumulate in the hose. As the pressure in the crank case increased eventually it would shoot the oil out the other side and into the intake. From the intake it went straight into the head gasket wear BAM run away diesel.
I myself saw this hose when disconnected SPRAYING oil into the floor (otherwise intake if installed) and it was A LOT. So the exhaust shot all this oil into the head and BOOM!
Once we flipped the breather baffle right side up and ran the engine NO OIL! JUST AIR! Hence- no more oil in the exhaust to go in the crankcase. Also managed to put new belts,impeller, and fuel filter on today too.
Ran the engine again for half an hour in every gear and every throttle and no run. No oil. All clear.
SO! That was it. Not cracked pistons or cylinder valves or o-rings (I mean these could be faulty- if the engine runs away in the future its pretty much means I have to get a new engine- parts for this motor do not exist- discontinued since 1992)
So I will get the bottom cleaned and scraped Monday and Tues or Wens will make another run down the ICW towards NSB. The mastery tech tells me I should be good to go with no further concerns and after being on the boat and SEEING the problem- I tend to agree.
So thats it. Crankcase Breather Baffle installed upside down was the cause of ALL OF THIS!@!!!!@@!@@#!!@!
At least its fixed-- I so very much hope.