Merc lower unit identification

savdxgrace

Recruit
Joined
Sep 6, 2009
Messages
5
Howdy...... I am about to pull out what little hair I have left. I aquired what appears to be a '69 Mercury 1000SS six cylinder outboard. I do know that the center section is not original so therefore I dont have the correct data tag. The previous owner told me he had changed it and even though the lower unit bolts to it, the "footprints" of the lower unit and the center section are not identical. I have the foot off and apart and am trying to properly identify it so that I can get the correct parts. Here is what I know....

the "serial" number on the engine block is 2681740

the lower unit housing casting number is 1623-5245

the drive shaft DOES have a spring loaded pin in the top to load the tapered bearing on the drive shaft

the gear ratio is 2.3:1, 30 teeth on the gears and 13 teeth on the pinion

the carrier number is 52132

it is a 3 tab reverse clutch

it DOES have a flush plug on the side for flushing the water pump

its physical shape, size and appearance is extremely similar to my '77 850 unit

Is it possible to determine if indeed this foot is from a '69 Merc 1000SS?
Thanks, Walt
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,937
Re: Merc lower unit identification

That a 850 unit bolted on that engine.
 
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