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Posted on Jan 02, 2017
sounds like valve guids are wearing out.. drying out and cracking. only fix is to replace them. or try a heavier oil. sometimes that will help depending on the severity of the problem.
Posted on May 06, 2009
The plenum problem should not affect compression tests. It allows oil to get sucked into the intake and will cause carbon buildup, plug fouling, and pinging. If you have zero compression on a cylinder, it is usually a valve problem. Even a burned piston will make some compression, unless it has a big hole in the middle.
Sorry, but if your compression results are to be trusted (and it seems they are), then you have to tear a head off to find the problem, or at least get a borescope in it.
Posted on May 20, 2009
At the time you made all the above repairs, did you replace the "throw away" turbo charger? The turbo charger commonly sucks oil, and it is not repairable.
Run it without the inner & outer air cleaner. If it isn't the turbo, run the injector cut out test. If the injectors are ok, then you need to replace the injection system hydraulic pump, which is also unrepairable.
Posted on Apr 23, 2010
White smoke means that you have a coolant leak. Two possible causes for that - either the head gasket is punctured and must be replaced or the head itself is damaged and must be welded by an expert.
Either way the engine must be dismantled to make a full diagnose and repair.
Posted on Aug 02, 2010
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