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Old 01-13-2015, 09:25 AM   #6
bayview
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City: gulf coast
Join Date: Jun 2014
Posts: 3,440
The coolant can be tested for lube oil. I think a NAPA store or diesel shop will have the test kits. If, with the cap off, you see puffing or smoke or the coolant smells like diesel exhaust that is a clue of head gasket. A few thousands in valve adjustment is normal. There is also a test for lube oil to look for coolant test kits from diesel shop.


The most common cause of white smoke is steam meaning insufficient water flow. Did you check the pump impeller? Yes compression can be checked with screw in gauge. But I would work the simple stuff first.
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