Home › Forum › Ask A Member › merc Mark 75 › Re: merc Mark 75
March 16, 2015 at 8:14 pm
#12100
Thanks for the diagram.
I believe that the "duckbill" is part #33 in the diagram. I think it is some sort of check-valve for when the engine turns backwards, since the impellor also has to turn in reverse, but I could be wrong.