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    2000 Johnson J90PLSSE LU identification

    I found this on another forum. I found this on another forum(above) Lower left i connected back and according to this reply the upper right Tee is venting into air silencer. Makes sense because i was careful when i removed. Thanks for the help i will update if i find anything else.
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    2000 Johnson J90PLSSE LU identification

    Just to update. Replaced drive shaft seals and good to go. Pressure tested and no leaks. Put LU back on and what a pain to get the shift rod back on the lever. I dropped the side pans and removed the air silencer. When reinstalling the air silencer there is T with small tubes i think for a vent...
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    2000 Johnson J90PLSSE LU identification

    Just to update.. Pulled the LU, Drive shaft seal blowing air.
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    2000 Johnson J90PLSSE LU identification

    Perfect that's what I was looking for thank you so much appreciate all your help
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    2000 Johnson J90PLSSE LU identification

    Ty So to clarify>>> "The easiest way to tell if it is a 60° V-4 motor is the pan mounted trim switch is on the port side." Also you're saying my outboard uses many years LU's If/when i need to order maintenance parts what year do look up? Thats where my confusion is
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    2000 Johnson J90PLSSE LU identification

    Yes that is the idea. I had a little water in the oil when I changed it for the winter. I have no idea what water pump or seals were put on so my plan is to change everything out. I just thought someone might be able to ID this lower unit. Once I get it pulled I will update this thread. Thank...
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    2000 Johnson J90PLSSE LU identification

    Sorry I meant internal Water Screens I will edit it
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    2000 Johnson J90PLSSE LU identification

    Yes bud ..😃 The reason for this thread was trying to identify what LU is on my engine.. Original LU for my J2000 has internal water screens.
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    2000 Johnson J90PLSSE LU identification

    I'm not putting down an aftermarket LU. I've read both good and bad things about Stern Drive. I just want to get this over with and identify the lower unit that is on my engine. LOL in all honesty all this research has taught me a lot
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    2000 Johnson J90PLSSE LU identification

    No but i was hoping this LU wasnt an aftermarket.
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    2000 Johnson J90PLSSE LU identification

    I'm thinking this is an original gear case. UP is stamped on top. (Just like this OEM) attahed pic.... Obviously all this will be confirmed once I pull the lower unit. I'm just waiting for my son to visit so we can get it off.
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    2000 Johnson J90PLSSE LU identification

    Prop off unfortunately even with light I cannot see inside but there looks like there are two bolts visible on the top and then I guess the anode on the bottom of the bearing carrier is in the way and all greased up
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    2000 Johnson J90PLSSE LU identification

    Finally got a crescent wrench big enough to get the nut off unfortunately I can't see the gear case. Going to have to get a spotlight or something. I will keep this updated thanks for all the help guys
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    2000 Johnson J90PLSSE LU identification

    My 1 1/16th didnt fit. I took a tape measurement and it was actually an inch and a quarter. I found that very strange. Possibly could be off a millimeter or two
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    2000 Johnson J90PLSSE LU identification

    Just an update I'm still waiting for an inch and a quarter socket to remove the prop nut.
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    2000 Johnson J90PLSSE LU identification

    Could this be it? Gearcase Parts for 1994 Johnson 90 hp J90MLERC Outboard Motor attached diagram Its pouring out or i wouldve checked the prop😟
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    2000 Johnson J90PLSSE LU identification

    Ty for your response. I will remove the prop tomorrow and post back with my findings.
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    2000 Johnson J90PLSSE LU identification

    Yes I've actually been in contact with them and they couldn't tell me if it was theirs unless I checked the serial number on the inside of the lower unit. After more research I'm thinking more and more it is an aftermarket SE 304. I'm just a little confused because their website states " SE304...
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    2000 Johnson J90PLSSE LU identification

    Just purchased this engine and previous owner said he knows the lower unit was changed out. From the research I've done 2000 lower units have external Water Screens. I'm trying to identify the lower unit which which has internal Water Screens. Before I pull the lower unit off in the spring I...
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