[wbnapier]

See photos below.

There was a 4" diameter pool of coolant on the garage floor under my oil filter. Upon inspection, I saw that it was dripping from the bottom of the oil filter housing, where it meets the block. I am unaware of any water passage there.

All nearby freeze plugs are dry. There was some very minimal moisture at the base of the passenger-side coolant nipple on the cylinder head, but no indication coolant is wicking down to the oil filter housing. That nipple was installed with Permatex Aviation.

Is there a water gallery under the oil filter housing? Any ideas?

Thank you.