Re: 1955 Elgin 7.5 HP

[jim-moffatt]

If your motor has an aluminum tank there are two tell tales, one on the exhaust cover and the other out the exhaust relief in the leg.
Again assuming an aluminum tank the lower unit is dropped by the nut under the cav plate and one under the window just above the cav plate. typical needle settings to start are 3/4 turn each final running positions are around 1/2 turn each.

Its likely the impeller is shot. I recommend replacements by Bob long linked off the aomci site. his email is
flyingscott91@yahoo.com