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Discussion in 'General Mustang Discussion' started by Patrick Stapler, Oct 27, 2017.
That looks terrible for 500 miles and a fresh engine!
And that's the third plug. Two sets of 45s and one set of 124s.
re the starter, when was the last time it was replaced? the brushes in the starter motor deteriorate over time and use. also if you have any kind of oil leak in that area, that will get in the starter and cause problems, been hit by that issue a few times over the years.
as for the plug, you have an issue with oil control on the intake valve, most likely a bad or improperly installed oil seal, or a bad valve guide. even with a fresh engine, the builder might have missed something.
So tonight I disconnected the battery terminals cleaned them really well with the wire brush battery terminal cleaner and cleaned the battery cables. Greased them with dielectric grease and reattached...tightly. Removed, cleaned all paint, and ran a thread chaser into the front block ground connection. Greased and reconnected...tightly. I will say this connection could have been considered loose relative to the others. I couldn't turn it with my fingers, but it required little to no torque to move with a wrench. Did the same to the engine to firewall connection. It was tight at both connections. Battery is fully charged at 13.45V with no load.