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Old 10-12-2018, 08:59 AM
tim2542 tim2542 is offline
Join Date: Aug 2009
Location: Redding,Ca
Posts: 633

A good borescope, spark plug and ex pipe inspection along with leakdown and Allenís suggested compression test may indicate only 1 or 2 cylinders need to be pulled. Glazed cylinders is seen as brown patches on the cyl walls.
If its only 3.5 hrs/qt. and all other tests are negative it will be hard to know whether to run it or do surgery. Certainly increasing oil usage is indicator to pay attention to.
Good luck
Tim Andres
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