1986 mercury
Recruit
- Joined
- May 23, 2009
- Messages
- 1
I have the subject engine and noticed water running out of the drilled and tapped hole right next to the top spark plug. Is there supposed to be something in the threaded hole? I thought there should be but the dealer said there are drill and tap holes all over the engine that do not use anything. His answer did not make sense to me but the skematic does not show this area clearly?
Can someone help me with this as the enghine runs but a small amount of water comes out of the hole? What is the threaded hole for?
Can someone help me with this as the enghine runs but a small amount of water comes out of the hole? What is the threaded hole for?