Inner sactum oil galley plug
It looks like we hot-tanked my 340 block without having removed a "hidden" oil galley plug. I am getting ready to final clean block oil supply lines with nylon brushes. Is it necessary to remove this other plug? If so, does an allen wrench 5/16" fit perfectly? And is this plug usually a bear to remove? If I strip it, I will leave a mess in a very inaccessible area. Thank you.
The fotos shows the plug we did remove, which leads nowhere. The one I am referring to is behind the one removed (at the rear of the block on the driver's side). It's too dark in there to take a good foto.
It looks like we hot-tanked my 340 block without having removed a "hidden" oil galley plug. I am getting ready to final clean block oil supply lines with nylon brushes. Is it necessary to remove this other plug? If so, does an allen wrench 5/16" fit perfectly? And is this plug usually a bear to remove? If I strip it, I will leave a mess in a very inaccessible area. Thank you.
The fotos shows the plug we did remove, which leads nowhere. The one I am referring to is behind the one removed (at the rear of the block on the driver's side). It's too dark in there to take a good foto.