Heh, I picked up another little trick for my self watching your video. I have three outboards. a 4 hp Johnson 2 stroke, a 9.9 fuel injected Suzuki, and a 9.8 Tohatsu. I just a beginner with repairs on outboards. But recently I replaced the impeller and housing for the water pump on the 2 stroke. When I went to put the drive shaft and lower unit back together I had some trouble getting the splines on the upper part of the drive shaft to mate with the gear box on the lower end of the engine. Now that I see what you do I can’t wait to try this trick you introduced me to. “Put the lower unit into reverse before installing...”. That way you can manipulate the splines to mate. That was very cool. Thanks again...
Wow! As others have said, you have a gift for teaching or at least instructional videos! Great job, very detailed. I think my 9 year old son could follow this and change an impeller. Lol. thanks for uploading
You should make a video teaching others how to make instructional videos! Thank you for the short, sweet and to the point instructional! Keep up the good work!
@@afabre93 Look at the direction the fins are (memoried) or note the direction the the pump impeller shaft rotates when , while the lower end is in gear (forward or reverse) turn the flywheel by hand or with the pull cord and see which way the "drive rod" (that the water impeller is seated on) turns. Be sure to turn the drive shaft in the same direction it was turning when the starter rope was pulled a bit or by turning the prop (shifted into reverse) a bit while fitting the lower unit up into the upper engine housing to get the impeller "fins" sitting in the correct direction.
Great video. Only thing is you didn't mention if it matters which way you turn the drive shaft when reassembling the impeller into the water pump housing.
Thanks for taking the time to make this. Very clear and easy to follow. You forgot step 1- Scrape off barnacles and oysters so I can locate the lower unit. Hopefully a family of crabs aren't living in the impeller housing!
Thank you too much. I've got same model outboard and i was thinking about replacing impeller how can i do this job. Your video explains everything very well. Thanks a lot and hi from Turkiye...
You did a great job but I have to point out a couple of important errors. It is Very Important to rotate the drive shaft in the "correct direction" while replacing on the housing @ 6:27 or you will destroy your new impeller. Also, Do Not use petroleum-based grease on Rubber Parts @ 7:08 as it will break down rubber over time - use Silicone Grease on Rubber parts. Small details - what Make/Year/Hp of outboard? How did you get to the shift linkage?
I noticed that as well. No mention of following the direction of the flywheel, either clock wise or counter clock wise before seating the impeller. Very important that the blades sweep instead of scoop....
Your old impeller wings will be angled one direction or the other. During disassembly, take note of that direction and ensure the new one goes on with the same directional bias.
Hi thank you for your instructive videos. I have a mercury 9.9 4t . I realized that there are numbers 1-2-3-4 on each bolt that connect the lower leg to the upper unit. I suppose that these numbers define the sequence that I should follow in operating the bolts. But I could not find any answer to the question " should I follow the sequence 1-2-3-4 in loosening or tightening the bolts ? " I appreciate your advise. Thanks
You forgot to mention to turn the drive shaft clockwise. Also Marine grease on the driveshaft splines as well as the impeller and the water pipe connector going to the motor make everything go smoothly.
Fun fact..... This "Mercury" motor is actually a Tohatsu. Made in Japan. They are bullet proof, and do a great job of protecting themselves from their owners with over rev and low oil protection. Happy boating!
I am not having a question on this exactly but...I started my engine a couple days after using her for several hours and I just made sure she started because she died in the water from swells cutting off power. Anyway, I put in forward and reverse only for a moment and shut her off. Now she is not starting at all. Not even idle for a second just barely after letting sit over night did I get a little smoke come out 1st pull and a attemp to start like the sound the 3rd pull now nothing is happening again. Any tips?
great video on changing waterpump I own 1999 Mercury 15hp manual start. Quite on me out in ocean - thank heavens for fellow boater who towed me in. Tried rope starting when floating around waiting for the tow but the engine would not turn over I followed your video but the water pump is fine. When I removed rope start housing I am able to rotate the fly wheel nut with a wrench but only goes 3/4 of a complete circle at which point it binds. Your thoughts? Sam
One thing I haven’t been able to figure out is I have had to replace my 3 times.I have a 2015 Honda 9.9.when I take it apart it’s looks like the housing got melted a little.I never run it dry and the prongs are dry and broke off,I have never had the problem with any other motors I have owned.
So the impellers find their own way when it spins I'm imagining.....I thought they had to be put in the direction of the clock or wise spin of the drive rod. so the shifting rod adjustment is critical. explanation
NOTICE : When removing the water pump housing, remove the screws completely, then pull it up. If the impeller is a little tight and is pulled out while the screws are present, the gasket is attached to the screw threads, and the impeller blades that are opened are caught and torn off.
My doesn't want to pee anything. Suggestions? I noticed before I was to changing oil on my Honda 20hp. I warmed up my oil by running it in water but no water peeped out. Clogged maybe?
I’ve got a 3.5 Mercury four stroke with Neutral and Forward only. I replaced my impeller and lined everything up as shown in the video but my motor will not shift into forward for some reason? Any ideas?
Not sure If you will see this but it dosen't really matter as long as it's in the same gear when putting the lower unit back on as when you take it off
Thanks for the video. Your shop floor is very messy. You (or whoever) should keep tools picked up and the floor clean. Question though. . . How do you get those impeller pieces out of the lower unit ?
Are you f#$king kidding me? You Tell the man his floor is messy and he needs to pick it up and then have the balls to ask him for more advice, information and instructions.. Wow
Could be the water jacket on the left side might be clogged up. Also check the small hoses for blockage. Check out the thermostat to make sure that it's operating correctly by removing it and drop it in some boiling water.
No, not if you install a new impeller, however, if you reinstall the old impeller then you would want to have the fins slightly bent back away from the direction of rotation.
I have a question about the water tube coming up from the pump, if I have water coming out the tell tale, tells me the pump is working, but the issue I’m having is water coming from between the upper and lower parts of the body ,coming out near the area in the vicinity of the shift rod, so do I have a thermostat issue and water is backing up , maybe coming out of the water supply tube or is the tube broken?. Unit worked well prior to last season and I didn’t change anything yet. Thanks
@@AaronTBR hey I just bought a implellar kit. Ppaets guy said that possible damage or wear on impeller would not give enough pressure to push water through and may be coming back instead of through the whole system. I'm going to change impeller and gasket . Only cost about 19 CA dollars. Looks easy enough to do. I'll let you know maybe put up my own video? I'll keep you posted
@@victoramaral5622 was water coming from the tell tale as well as around the shift cable? That's the issue I'm having. It's going through the system, but also out around that connecting piece by the shift cable.
@@AaronTBR exactly. Parts guy told me maybe impeller wasn't creating enough pressure. But we'll see I need to change it anyway.not sure when it was done last and it should be done every 2 years ,as so I was informed
@@AaronTBR so ii changed the impeller and it didn't fix my issue. Here is a link to a video of issue. If anyone else can help let me know. Waiting to hear back from anyone! czcams.com/video/AWh70MfD2Js/video.html.
What happens if my prop only turns one way and when I turn it, there appears to be a clicking noise. I obviously did something wrong, but what causes the clicking noise. Thx in advance!
Terrible example you did t mention lubricating it and you didnt mention the direction the impeller has to go in please don't post u tube videos that are not complete.
The absolute best video I have seen on replacing an impeller!
Heh, I picked up another little trick for my self watching your video. I have three outboards. a 4 hp Johnson 2 stroke, a 9.9 fuel injected Suzuki, and a 9.8 Tohatsu.
I just a beginner with repairs on outboards. But recently I replaced the impeller and housing for the water pump on the 2 stroke. When I went to put the drive shaft and lower unit back together I had some trouble getting the splines on the upper part of the drive shaft to mate with the gear box on the lower end of the engine. Now that I see what you do I can’t wait to try this trick you introduced me to. “Put the lower unit into reverse before installing...”. That way you can manipulate the splines to mate. That was very cool. Thanks again...
Outside of a few out-of-view camera scenes, outstanding. Clear, concise, and not wasting any time. Thank you.
Excellent video.
Covered all the points needed - saved me having to bring it to the shop, and I got my motor running again.
One of the best impeller change videos I have seen in a long time.
Wow! As others have said, you have a gift for teaching or at least instructional videos! Great job, very detailed. I think my 9 year old son could follow this and change an impeller. Lol. thanks for uploading
You should make a video teaching others how to make instructional videos! Thank you for the short, sweet and to the point instructional! Keep up the good work!
Thank you for a great video. Really clear.
Great tutorial! You are direct and speak clearly. Fantastic!
Could you show what direction the water pump fins are to go. Clockwise or counter clockwise? Very good video !
Came her for this. Any luck??
@@afabre93 Look at the direction the fins are (memoried) or note the direction the the pump impeller shaft rotates when , while the lower end is in gear (forward or reverse) turn the flywheel by hand or with the pull cord and see which way the "drive rod" (that the water impeller is seated on) turns. Be sure to turn the drive shaft in the same direction it was turning when the starter rope was pulled a bit or by turning the prop (shifted into reverse) a bit while fitting the lower unit up into the upper engine housing to get the impeller "fins" sitting in the correct direction.
Great video. Only thing is you didn't mention if it matters which way you turn the drive shaft when reassembling the impeller into the water pump housing.
Thanks. First time try. Will see how she goes. Would not have attempted without a clear lesson.
You made my day bro!!! Very clear an clever explained - Go on - BR from Germany
By far the best instructional video I've ever watched I never leave a comment I honestly think this is my first one but good job buddy
Thanks man, great instructional video!
Thanks for taking the time to make this. Very clear and easy to follow. You forgot step 1- Scrape off barnacles and oysters so I can locate the lower unit. Hopefully a family of crabs aren't living in the impeller housing!
Thank you too much. I've got same model outboard and i was thinking about replacing impeller how can i do this job. Your video explains everything very well. Thanks a lot and hi from Turkiye...
Nicely done. A great help for me. Thank you.
You did a great job but I have to point out a couple of important errors. It is Very Important to rotate the drive shaft in the "correct direction" while replacing on the housing @ 6:27 or you will destroy your new impeller. Also, Do Not use petroleum-based grease on Rubber Parts @ 7:08 as it will break down rubber over time - use Silicone Grease on Rubber parts. Small details - what Make/Year/Hp of outboard? How did you get to the shift linkage?
I noticed that as well. No mention of following the direction of the flywheel, either clock wise or counter clock wise before seating the impeller. Very important that the blades sweep instead of scoop....
And apply grease to all the bolts and drive shaft to prevent corrosion
Very well done i loved it, no going sideways and mixing things up Cheers.
Great video. One question I have is what direction did you rotate the drive shaft when you worked the pump into the housing. Does it matter?
Your old impeller wings will be angled one direction or the other. During disassembly, take note of that direction and ensure the new one goes on with the same directional bias.
If there aren't any blades left how do you know which direction the blades go?
Thank you. I learned a lot today. This is a very vital pc of the boat transmission.
Extremely helpful; thanks for taking the time.
Hi thank you for your instructive videos. I have a mercury 9.9 4t . I realized that there are numbers 1-2-3-4 on each bolt that connect the lower leg to the upper unit. I suppose that these numbers define the sequence that I should follow in operating the bolts. But I could not find any answer to the question " should I follow the sequence 1-2-3-4 in loosening or tightening the bolts ? " I appreciate your advise. Thanks
Thank you! Great video!
great video ,your instructions are clear to the point ,cautionary with limits and the flow was easy.
thanks well done
You forgot to mention to turn the drive shaft clockwise. Also Marine grease on the driveshaft splines as well as the impeller and the water pipe connector going to the motor make everything go smoothly.
yes..Ed you were reading my mind..lol
It would be GREAT to know what people are working ON!!
Fun fact.....
This "Mercury" motor is actually a Tohatsu. Made in Japan.
They are bullet proof, and do a great job of protecting themselves from their owners with over rev and low oil protection.
Happy boating!
Very helpful! I am going to tackle mine this week, although mine is a long shaft .
How did it go?
Great instructional video! I thank you.
Worked perfect for me. Thank You so much
He make it look seamless
Which way do you rotate to drive shaft when you're putting the impeller in the cup
I am not having a question on this exactly but...I started my engine a couple days after using her for several hours and I just made sure she started because she died in the water from swells cutting off power. Anyway, I put in forward and reverse only for a moment and shut her off. Now she is not starting at all. Not even idle for a second just barely after letting sit over night did I get a little smoke come out 1st pull and a attemp to start like the sound the 3rd pull now nothing is happening again. Any tips?
Excellent tutorial, thank you!
Is that a mercury 8hp? I’m in need of water pump gaskets for a 2006 but can’t find the part numbers
How would I clean out the broken impeller parts out?
Great and simple. Nicely done
Nicely done wink. thank you. Tackling this today.
How long should it idle in testing before water is discharged? Does it hsve a thermostat?
Great video!
Thanks you.
For one 15 gamefisher change the water pump is the same???
Thanks.
great video on changing waterpump
I own 1999 Mercury 15hp manual start.
Quite on me out in ocean - thank heavens for fellow boater who towed me in.
Tried rope starting when floating around waiting for the tow but the engine would not turn over
I followed your video but the water pump is fine.
When I removed rope start housing I am able to rotate the fly wheel nut with a wrench but only goes 3/4 of a complete circle at which point it binds.
Your thoughts?
Sam
simeon hyde probably dropped a valve,or broken timing belt/ cam shaft if its a 4 strok
When putting the impeller in which way do you rotate the drive shaft ?
Good work! Did same repair today…all good! Rebuild kit 179 cad @ dealer or 42 cad Amazon. Hmm.
One thing I haven’t been able to figure out is I have had to replace my 3 times.I have a 2015 Honda 9.9.when I take it apart it’s looks like the housing got melted a little.I never run it dry and the prongs are dry and broke off,I have never had the problem with any other motors I have owned.
Have you blown out the passages?
@@gregorytimmons4777 I did this time,so far so good
Wow, fantastic job on this video!
how do you remove the lower half of the water pump? Does the drive shaft have to be removed first?
So the impellers find their own way when it spins I'm imagining.....I thought they had to be put in the direction of the clock or wise spin of the drive rod. so the shifting rod adjustment is critical. explanation
Well done sir
Fantastic video, very well done, thanks!!
Glad it helped!
great video. it helped a lot
Thanks for the video. Do mercury 9.9s have an oil filter?? I read something about that in my manual but cannot find it on my motor..
Mine is 2019 mercury 9.9hp. Asked mechanic same question he said there is no oil filter on it
Well done.
nicely done job this video, thanks
Picked the part up today and installed. Thanks.........wink
When you install the impeller housing is it counter clock to get the impeller to set in??
NOTICE : When removing the water pump housing, remove the screws completely, then pull it up.
If the impeller is a little tight and is pulled out while the screws are present, the gasket is attached to the screw threads, and the impeller blades that are opened are caught and torn off.
I have a yamaha f15 2012 and it is overheating only at idle. It pees fine with new impeller new thermostat and anodes. What might be wrong???
My doesn't want to pee anything. Suggestions? I noticed before I was to changing oil on my Honda 20hp. I warmed up my oil by running it in water but no water peeped out. Clogged maybe?
And when reinstalling lower unit apply grease to dive shaft and all the bolts you will never have a problem removing them next time
I learned a lot thank you👍
I’ve got a 3.5 Mercury four stroke with Neutral and Forward only. I replaced my impeller and lined everything up as shown in the video but my motor will not shift into forward for some reason? Any ideas?
rotate shaft which direction? could not see your hands
Up and Down...
My impeller is so tight in the cup it's ridiculous. Need to know which way the fins are supposed to go?
Great video! I'm going to tackle this job. What gear should the motor be in before dropping the lower unit?
Not sure If you will see this but it dosen't really matter as long as it's in the same gear when putting the lower unit back on as when you take it off
Does it matter which way you turn the drive shaft when installing the water pump housing over the impeller?
robert gallinoto yes,clockwise,as engine turns.
thank you
good video, thanks a lot
Can a 2016 9.9 hp mercury 4 stroke be converted to a 15 hp.
,by replcing or rejetting the carburator?
Thanks for the video.
Your shop floor is very messy.
You (or whoever) should keep tools picked up and the floor clean.
Question though. . .
How do you get those impeller pieces out of the lower unit ?
Are you f#$king kidding me? You Tell the man his floor is messy and he needs to pick it up and then have the balls to ask him for more advice, information and instructions.. Wow
It takes much longer than 15 minutes! He just realized he needed to remove the nut completely!
great vid thanks
This is our key!
*Drops to oblivion*
GREAT AND THANKS!
Would u know if after replacing all those parts it's still not pumping water in? What else could it be
Could be the water jacket on the left side might be clogged up. Also check the small hoses for blockage. Check out the thermostat to make sure that it's operating correctly by removing it and drop it in some boiling water.
Does it matter the orientation of the impeller fins when replacing?
No, not if you install a new impeller, however, if you reinstall the old impeller then you would want to have the fins slightly bent back away from the direction of rotation.
I have a question about the water tube coming up from the pump, if I have water coming out the tell tale, tells me the pump is working, but the issue I’m having is water coming from between the upper and lower parts of the body ,coming out near the area in the vicinity of the shift rod, so do I have a thermostat issue and water is backing up , maybe coming out of the water supply tube or is the tube broken?. Unit worked well prior to last season and I didn’t change anything yet. Thanks
I have the same issue. Would love to find out!
@@AaronTBR hey I just bought a implellar kit. Ppaets guy said that possible damage or wear on impeller would not give enough pressure to push water through and may be coming back instead of through the whole system. I'm going to change impeller and gasket . Only cost about 19 CA dollars. Looks easy enough to do. I'll let you know maybe put up my own video? I'll keep you posted
@@victoramaral5622 was water coming from the tell tale as well as around the shift cable? That's the issue I'm having. It's going through the system, but also out around that connecting piece by the shift cable.
@@AaronTBR exactly. Parts guy told me maybe impeller wasn't creating enough pressure. But we'll see I need to change it anyway.not sure when it was done last and it should be done every 2 years ,as so I was informed
@@AaronTBR so ii changed the impeller and it didn't fix my issue.
Here is a link to a video of issue. If anyone else can help let me know. Waiting to hear back from anyone!
czcams.com/video/AWh70MfD2Js/video.html.
Is this jon from Fly8MA?
You did not say what direction to rotate the drive shaft
Are you the same guy who makes the aviation videos ?
What happens if my prop only turns one way and when I turn it, there appears to be a clicking noise. I obviously did something wrong, but what causes the clicking noise. Thx in advance!
You might have to adjust the lower unit linkage. It might not be going down far enough to engage the reverse gear.
You didn't say which way to torn the shaft !
You just cost outboard mechanics some real $$$
may I ask what kind of motor this is?
Outboard Motor...
Just use InpliX instructions. you will make it. its so easy
You didn't show how to take apart the motor to get at the shift rod. My motor you cannot even see the shift rod it is covered with steel.
Dern trying to find water pump video on 52 kh7 is like a secret James bond secret... Anybody know?..
Thumbs down for all the commercials
You forgot to lube the impellor or clean the water input tube. I’d never let you work my engine.
I cannot get the drive shaft seated and the lower unit reinstalled to save my life. I'm ready to throw it in the trash!
Bob Reed turn the engine flywheel or propeller while in gear to align the drive splines. Easy when ya know how!,🤣
Terrible example you did t mention lubricating it and you didnt mention the direction the impeller has to go in please don't post u tube videos that are not complete.
thank you
You just cost outboard mechanics some real $$$