What is this hole in my cylinder?

2 replies to this topic
  • Fliip

Posted May 04, 2012 - 04:59 PM


Something is coming out of this hole... It looks like oil. I need you guys' help!
Posted Image

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  • grayracer513

Posted May 04, 2012 - 05:39 PM


That is the drain hole for the spark plug well. If it's leaking oil, either you plug is loose, or the cam cover gasket is leaking into the plug well.

  • stroker101

Posted May 05, 2012 - 07:33 PM


gotta be the 2nd answer

also the hole can be / is used to blow compressed air through to clean the plug area of dirt before removing the plug. ( remove the spark plug cap first)

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