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    78 evinrude 115hp winterizing...?

    Hey everyone. Been awhile. Had a great summer due to all the help on here. I’m now at the point where I need to think winterizing. What do I need to do? ive heard different things ranging from antifreeze through a hose into the water intake. Is this necessary? My local shop says all they...
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    Anyone familiar with the lower units and driveshafts from SEI?

    i Recently bought a lower unit from sei. They told me all I needed in order to make the new unit work on my old 1978 Evinrude 115hp model number 115899c was a new drive shaft from them. I ordered it and got it in the mail. I’m in the process of installing it but the driveshaft does not have a...
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    Model #115899c new lower unit?

    Eh everyone. I recently took my lower unit apart and the things I need to replace are breaking the bank. Costs for parts would be $850 while a new lower unit runs roughly $900... the site says if I have a older engine I will need to change out the driveshaft and a few other things can I use...
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    Shift detent

    I’m looking for the bottom detent. Can only find the top style anyone know where I can get the bottom style?
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    78 115hl Evinrude shift assist questions

    I took apart the lower unit cause I’m having problems getting reverse to work properly. Often times the it would stick in forward gear. Nutral to reverse would take a lot to engage. Here’s is a picture of the shift assist. My question is the lever I’m pointing at is slamming down on the...
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    78 115hp Evinrude gear replacement

    Problem is jumping and grinding when try to get reverse. Heres the reverse gear. Notice the wear on the back. Lobbying on the matting surface for the clutch dog. Is this also wear on the top? Next is the forward gear. I’m not sure what to think about this one. Is this wear on the back? There...
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    78 115hp Evinrude forward gear and prop shaft stuck

    Took apart the lower unit. Investigating why I can’t get reverse and metal fileings in the drain plug and rod magnet area. I’ve got everything apart but can’t figure out why the clutch dog,forward gear, prop shaft and shift rod assist will not come out. It seems like it is attached at the very...
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    78 115hp Evinrude 115899c shift arm length??

    Hey everyone. Haveing trouble getting the motor to engage reverse so I am taking apart the lower unit to look at the gears as it’s evident there is problems on the gears, lots of metal in the gear oil when pull the drain plug and the magnet drain plugs is covered in metal. That’s not my...
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    78 Evinrude 115hp new waterpump installed now no reverse?

    Hey everyone. I’ve got many threads relating to this motor so Faron this site. Here’s another. Recently replaced the water pump (major clog inside of it). Installed it and had everything hooked up and took it out on the water. Forward works fine but when I try to put it into neutral it...
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    Water pump. Extreme damage!!

    78 115hp Evinrude had problems with overheating (buzzer doesn’t work so only knew by touching the block and it was extremely hot). So I decided to take a look at the water pump. The picturesthay follow are what I found when I took off the water pump. Inside the outtake for the water pump (...
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    Head gasket leak

    Took out the boat a few days ago. Took out the new spark plugs to see if they are still being fouled ( old owner had wrong spark plugs in). No fouling but when I took out the bottom spark plug on each side, water came out. Was not much but pretty sure it was water. Bubbly clear fast moving...
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    Vacuum leak. common locations?

    Took out my 78 115hp Evinrude. Still bogs at idle. Seems to not be as bad as it was. while out on the water I notice that the primer bulb connections on both ends was slowly slightly leaking. I took some extra zip ties I have in the boat and tightened them up. Started the engine and it seemed...
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    Wrong oil?

    I was in a rush a grab this type of oil. Wasn’t until after I made this mix that I realized it might not be TC-W3. can I run it with this in it? What’s gonna happen? Yup, newb mistake.
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    78 115hp Evinrude thermostat location

    Hi all. I’m thinking I am having problems with my engine getting to hot. Took it out this weekend. Warmed it up and went to my fishing spot 5 minutes away. Took off the cover too look for fuel leaks as I could see fuel in the water and when I touched the cylinder housing it was extremely hot...
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    78 115hp Evinrude coil and plug wire

    Could these cause problems? What type of problems?
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    Throttle arm repair

    My throttle arm is sticking and very stiff. I’ve looked into what it takes to do repairs and what could be the reasoning for the stiffness and sticking. Apparently there is springs and bushing in this arm leading into the cam... is this a hard task? I’m assuming the spring and bushings are...
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    DANGAR MARINE!!! Best videos on the internet!

    Who else go strait too a dangar marine video when troubleshooting or doing repairs?? If you haven’t heard of him I suggest you go check out a video or two. Dudes epic! If your reading this dangar, THANK YOU!!!
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    Oily gas leaking from leg? 87 115hp Evinrude

    Here is my next concern. I have oily gas leaking from the upper portion of the leg. I’ve looked at the parts list and diagram for this section of the unit and I believe it is number 37 seal/gasket... am I correct? What would cause this?
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    78 115 hp sputter sputter chug chug??

    Well I’ve come a long way from where I was. Originally I got the boat a few weeks ago and it ran decent. Would chug in low idle or low speeds but I would just give it more throttle and it would stop. A few days later and the engine wouldn’t start at all. I inspected what I could see and...
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    Carb jets...

    Do the carb jets ( low speed, intermediate speed, high speed) need to be in perfect shape for them to spray properly? I was having problems in low idle/speed where the engine would bog so I took the carb apart and found large peices of rubber in the intermediate jet. When I took the jets out I...
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