What is in the lower unit of a 140 hp evinrude outboard?
Hey, i just got a used lower unit of another evinrude 140hp outboard. i was wondering if the prop shaft was located in it. is there only one propshaft? or is there 2 parts to it? do i need to get a new seal to mount the new(used) one i just got to the rest of the engine? can i buy some kind of sealant to seal it or do i need a gasket? thanks
You should have gotten a new one .. would probably last longer and less headache, but since you want to fix it, Try this link … it will show you exactly what is inside the lower unit.

Its real obvious that you don't have a lot of experience with outboard motors….. My suggestion would be to have a qualified outboard mechanic assemble the lower unit, or you can plan on much more expensive repairs later on.
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me and my dad rebuilt the lower unit in a 50hp johnson go to your local libuary and check out a chilton mechanic book for your motor and it will tell you everything you need to know
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life
use a gasket, after working at a boat yard for 4 years and having to deal with the headsches of people trying to use glue. You won't be on their good side.
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You should have gotten a new one .. would probably last longer and less headache, but since you want to fix it, Try this link … it will show you exactly waht is inside the lower unit.
http://images.search.yahoo.com/search/images/view?back=http%3A%2F%2Fimages.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Doutboard%2Blower%2Bshaft%26ei%3DUTF-8%26fr%3Dyfp-t-501%26b%3D21&w=480&h=751&imgurl=www.sterndrive.info%2Fsitebuildercontent%2Fsitebuilderpictures%2FMercury_60_to_125_3_or_4_cyl..jpg&rurl=http%3A%2F%2Fwww.sterndrive.info%2Fmercury-outboard-parts%2F60hp_to_125hp_component_layout.html&size=53.3kB&name=Mercury_60_to_125_3_or_4_cyl..jpg&p=outboard+lower+shaft&type=jpeg&no=27&tt=41&oid=95462e386d21ce2a&ei=UTF-8
http://www.boatdesign.net/gallery/showphoto.php/photo/3697/cat/500/ppuser/10071
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no seal or gaskets needed. doesnt have one.
there is one propshaft and one driveshaft. prop shaft is the on e the prop goes on, sticking out the back. driveshaft connest with the crankshaft at the powerhead, the one sticking out the top.
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