Hey thanks Wayne. I have the same motor I just picked up and I'm NOT a handy guy. Appreciate the "real" work through and not glossing over the harder parts!
The large O ring goes below the lower impeller housing. There is a screw on one side of lower housing if removed the lower impeller housing will remove with something you can pry up with. I have the exact same motor you do.
I looked at several videos and you are correct, didn't show it. I did find one that did, donyboy73. he also used the zip tie method. What I didn't see anywhere is removing the copper tubing. I had a piece of old impeller lodged in it. donyboy73 mentioned this as well. The bottom line, thank you for taking the time and others for doing these videos.
@@WayneTheBoatGuy I just took it apart again and somehow the key moved when I seated it. Now I have to get the copper pipe back in the correct place. Any tips with that would be very helpful
Hello again Wayne Great view on impeller repair. I am supposed to do one one my Alpha one / Gen 2 drive this spring. I watch several utube videos on the process. Wish me luck Be safe Be well
I have the exact same engine. Got it from my grandfather. That large O ring goes below the housing. The whole housing assembly including the water pickup tube lifts up and exposes the gearing case. O ring seals in oil and keeps water out. Mine was in perfect shape after 40 years, but check yours next time.
Also turn your motor upside down on a old rug or blanket to protect engine cover. You will find reinstalling the lower unit much much easier. It is so much easier to see what you are doing.
I removed it. I tried to use a pentrating oil but it didn't work. I finally used a chisel to get it off. I'm convinced it was the wrong size forced on there. Thanks for your response
Guy the easy way to get the water pump housing over the impeller is install the impeller and key then apply light downward pressure to the housing and at the same time rotate drive shaft in correct rotation direction and the housing will very easily slide down over the impeller. forget the zip ties
Zip ties and stretch cords belong on a boat for sure.Handy for fishing and crabbing too.I know you are not in it to fish but the help to keep stuff in order.
That bigger o ring goes around the water pump housing base piece. If you had the impeller out again you could slide the whole housing bottom over the driveshaft and there’s an o ring groove on the bottom of the plastic base.
i have an impeller kit and it doesn't even supply that large o ring. Only two of them. WHen I took mine apart I didn't see any o rings nor any groove to put it in at the top of the shaft as he did.
Hello, so just an f.y.i. that around the 7:30 time stamp the impeller is spinning by the crank shaft, rotation of the motor and will always spin in that direction, when shifted into forward or reverse the impeller rotation is unchanged, the reverse and forward mechanical operations happen in the lower gear housing, thank you for reading and i hope this helps many others :)
Hi and thanks for such a great video. I have the EXACT same motor as yours, and have just gotten her up and running again thanks to your help. I am finding it impossible however to find parts for it as the serial number plate has fallen off. Which leads me to my question: What is the serial # on your motor?
@@WayneTheBoatGuy cheers for that! Im in the process of getting more water through the tell tale. have changed impeller, but think the copper tube is not seating correctly inside the impeller housing. Im going to take it off again and try to fabricate a new gasket on the end on the copper tube. Its just a matter of trial and error.
The Alpha one drive impeller is in the lower leg of drive the exact area where you did your out board motor impeller. I have to separate the drive 1/2 way pull it down and bingo there it is
Why not just cut the zip tie away, once you had it in place? When I've done mine, I soak the impeller with Armor All, get it slipperly, then get the fins started in the right direction, while turning the drive shaft by hand simulataneouly pushing the cover down over the impeller. This way all the vanes are in the right direction.
wow man, really nice video. I’ve got myself a 7.7 hp mercury 1982 that i wanted to give some maintenance, your video really helps to see and know how your engine works in simple language. and because you did it for the first time, that obstacle is already taken by you for me. when the season is over ill replace my impeller and do some renewing on the fuel lines and sparkplug cables. I’ll let you know how it went!
Hey man I got a 7.5hp mercury, I replaced the water pump housing, the impeller, and it still is not pumping water, everything is hooked up correctly I can prime it by pouring water from the top and it works for a second then stops, I also have exaust gasses coming out the the pee hole I'm frustrated as fuck.
@staffanfogelberg6816 I ended up having to pull the powerhead and there was some melted plastic between the powerhead and the copper tube, don't know where it came from but I just removed it and made a new gasket now she's pissing like a dream 🙂