Home › Forum › Ask A Member › 1957-58 Mercury mark 10 impeller questions › Re: 1957-58 Mercury mark 10 impeller questions
March 31, 2018 at 11:35 am
#73273
I watched that video also. My motor is a 1957 and the impeller cartridge is upside down compared to the ’58 motor that he was working on. NO gasket between the center section and the gear case. I don’t remember a left hand tread on that spanner nut but maybe it was LHT. My impeller would not fit the drive shaft until I filed the key way square. Not criticizing but beware of changes from year to year.
dale