Join Date: Nov 2009
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Pressure testing the turbo compressor, is a good idea, and preasure testing the intake of the engine will test the valve guides. 35 lbs, You can check the oil filter for metal, both aluminum and steel. You can remove the oil pan and look up to see if a cylinder is scuffed, and metal on the oil pan drain plug magnet. You can pull the injectors and with the piston at the top and bottom check for cylinder leak down. If the cylinder has scuffed it is possible the oil pump is torn up, it is also possible the oil filter is compromised. If there is a lot of metal, the oil cooler should be changed.