Well, Pump is off - as is oil cooler.
And the news isn't good.
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I was expecting to see a hole in the oil cooler and there didn't appear to be one - so I pressure tested it.
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and it held 75 psi just fine with the valve shut.
So I dropped the oil out of the sump again - thinking I would plug the coolant holes in the side of the block started putting some water back in the radiator.
But before the water level got anywhere near the coolant holes in the side of the block - it started streaming out from the crankcase from below/around No 4 Piston - above/over the big end.
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So not sure if I buggered up the leak down test and I do have a failed liner or - perhaps as also suggested - rusted through somewhere in there.
So by this time I'm pretty unhappy and it's getting late and cold and there is water and sludge everywhere again so left it alone for a bit.
When I get a chance I'll see if I can have a better look at where the water is coming from.
Adrian
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