Wanted to drain my radiator on Subaru Sambar. Found the plastic butterfly drain plug. Turned it about 3/4 way, as far as it will go. There is a nipple that blocks it from going further. Anyway, nothing came out. I know there is fluid in there. Any suggestions? Thanks.
The butterfly screw will only turn so far and then stop because it is hitting something. Is it suppose to spin completely around several times and then actually come off?