How to Change Impeller & Gear Oil 1984 Mercury 9.8 HP
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- เผยแพร่เมื่อ 31 ก.ค. 2024
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Learned more than a couple things watching you do that one. Video smacks of EXPERIENCE. Thank you so much for sharing your knowledge sir. I love working on old outboards.
One of the best videos I’ve seen on how to do this! Thank you!
I have this same year Mercury but a 7.5 hp. Thanks for the video.
Great video! Spot on thanks!
Fantastic thanks Mike!
Excellent video. thanks.
I like the video Mr Mike. Thank you
Hey t Mike if you can make a video on the throttle of this motor on how it works and sits on the carburetor will be really helpful ❤
G'day Mike...I've rebuilt several of these motors so thought I'd throw in my two bob's worth...Firstly, you forgot to mention that the lower shift rod has a blind spline which needs to be lined up with the upper shift rod, which also has a blind spline (both lower and upper rods are connected by a plastic cam in the middle_If you force the gearbox on without doing this first you will destroy the cam and that means a lot of extra work to replace the cam (if you can find one). I do this by putting the gearbox into reverse and pushing the shift handle into the reverse position before bringing them together......also, I'll bet that getting the gearbox back on with it on the stand was a gigantic pain in the arse!!!...It's much easier to stand the motor upside down on the ground and lower the gearbox directly downwards into the motor....another thing with the'82-86 motors which sets them apart from earlier models is the shaft diameter (earlier motors were a bees dick smaller and whilst they look the same, they use a different impeller)...use the wrong impeller and you're set to cook your motor
I replaced my impeller on my 9.8 and I believe I did this step wrong.. my reverse doesn't work, Nuetral moves it forward and forward is about half the speed it used to be. Do you know how I correct this?
I think I miss aligned the gear shaft when I put it back together. How do you know when the lower is in reverse, Nuetral or forward? S
@@bradleylehman4674 It's easy to do! With the lower unit off you can turn the gear selector shaft of the lower unit with a pair of pliers (not on the splines!) If the propeller moves freely back and forth you have shifted the lower into neutral. Now make sure the gear selection lever on the motor/upper is in the same position, neutral. As you push the lower back onto the upper and align your shafts and water guide tube you may have to gently tug on the pull start rope to turn the gears in the upper into alignment so that it all will seat back together. Hope this helps!
Thank you sir!
Good video. I prefer OMC motors though 😊
Good voice for the video
Thank you. God i hope that oring onthe top of the drive isnt to important. Because I didn't have one on there to begin with so there one on there now. Wish id seen you video before I did mine
Cheers:):):)
Great video!! But must ask. What's the threaded hole just behind the bottom of the housing. It's just behind the nut by the water pump inlet...
Hi T Mike, my name is Duke, how do you put lower unit into the motor after you've replaced impeller?
Impellor replaced gear oil done trolls good good flow out pee hole now the gears are outta whack forward feels like reverse and vice versa obviously did something incorrect any tips sir ?
I got a seahorse 5.5 do I got to put a fuel pump on it to run 1 fuel line instead of the 2
Yes
Hi! im having issues keeping the key in place while putting the impeller on, ive tried multiple different kinds of grease but it just keep slipping out of place.. any advice?
Just use the thickest grease you have. Good luck.
Slick video having issues with same engine gets hot stalls out at slow troll speed would the impellor be the issue and pee hole water is warm/ hot
Yes
Do you have any videos for rebuilding and resealing the vintage omc lower units
I have several - just search my videos. Here is one
th-cam.com/video/3FSnqULRQuk/w-d-xo.html
My drive shaft had a plastic pice on it when I pulled the lower unit. When I look up diagrams it appears to be called the drive shaft block.. can some one explain where the piece is suppose to go. Not sure if that’s where it’s suppose to go as no videos I find have it on drive shaft when lower into is pulled
It sets on water pump housing base
@@michaeljsimon it’s not the washer thing it’s like a flat plastic piece when I look up diagrams it’s in driveshaft house assembly. When I dropped my lower unit it was about half way up drive shaft
@@michaeljsimon it’s called driveshaft block part #93145
Is there a gasket that is needed when placing the lower unit onto the dirve unit?
Nope
@@michaeljsimon Thank you. Great video.!!!
Are the parts in the 9.8 the same as the 7.5 such as impeller? Thanks.
th-cam.com/video/9t35NTDiwyw/w-d-xo.html
Yes...the only difference is carby size and intake/reed block (from memory)..otherwise they're exactly the same.....