Two days ago while replacing the transmission oil, I also noticed an oil leak...
However mine does not seem to be from the chain tensioner but from the chain housing itself.
I cleaned the area and tighten a bit (1/8 of turn) the three 8mm small screws that are on the area, hopefully this will stop the leak.
If the leak persists, does this mean that the entire chain tensioner housing has to be removed to replace the gasket..?