Discussion:
K25 piston woes

Had a knocking engine sounded low.Pulled pan all looked ok.Pulled head #4 piston scufed bad on thrust side.#1 and oil ring moves in grove #2 dont.Looks like lack of oil but the rest are fine.Anyone seen this on such a great engine.We have hundreds running and this is the first time ive seen this.7500 hrs est
  • Posted 21 Jan 2010 23:12
  • By proshadetree
  • joined 23 Feb'06 - 484 messages
  • Tennessee, United States

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