Yes, it may be temporarily plugged, BUT most likely there is more corrosion inside that you cant see that's going to cause you problems. This is a good pic of what happened to my engine holder internally.
-Shawn
I am doing everything myself. It really isnt that bad with the shop manual and a good set of metric tools. When the water got into mine, it caused me to spin a bearing. I decided against rebuilding, and found a used powerhead instead. I now have 2 nearly brand new engine holders. I will sell one at half of retail if anyone is interested wedocq@comcast.net
-Shawn
Your 05 will have a painted (black) steel plug. I have just removed my 07 plug and it is blowed up! The end is eroded away. I wonder if this is truly corrosion, it looks like the hot exhaust gases are eroding it!
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