Very informative and very accurate video. I recently changed the impeller on my 115 Optimax, which is the same platform as the 90 in this video. The only difference is that my 115 Optimax was lung shaft, therefore, the gear shift selector rod was longer. Only thing I did different is that as my impeller kit came with a new plate and gaskets, I also replaced the plate and gaskets. The kit from Mercury also came with a tool in order to ensure the top rubber seal is not pushed down too tight on the water pump housing.
THX! Dealer wanted $135 plus part and for me to leave my boat for a week. Took me about 1hr and saved $$$$. Will be doing it myself your video really helped!!! (2005 90 hp 2 stroke)
I would like to thank you for taking your time to make this video, my water pump went out today, and after watching your video I'm going to replace my pump myself, again thank you.
Great help. Got me thru. I have a mercury kit with a bunch of washers. The parts diagram showed one just above and one under the impeller. No idea where the others go. Couldn't find anyone using them on TH-cam. Thanks.
Another fine video. Thank you. You are saving money for lots of folks by sharing your knowledge. Another topic that would be good is changing lower unit oil. I hear it is relatively simple but I'd like to see it done once before I try it. Thanks again for a great how-too video.
It takes a man from DIXIE to explain changing this water pump is SO EASY!!!!!!! Thank you, and will change my water pump on my 2011 90hp Optimax before the spring bass bite in NW Louisiana. :-)
The higher you tilt the motor, the easier it goes. Use the tilt lock by the transom. Note direction of flex on the old impeller, grease and insert new in same direction. Thank you Sir, quality video.
Great Video, WAY More Informative than any other, You mentioned the little things a newbie would not know to do, like rotate shaft clockwise when sliding upper housing over impeller, Great video!
Thank you so much for this video. I am attempting to order what I need and replace mine. I have already replaced fuel pump, plugs, runs great just noticed the puss stream lightening up some. So figured rest is new. Great video.
Thanks for this ! I might suggest NOT to use grease, its a petroleum based product and thusly will weaken the rubber of the impeller. You can however pick up some silicone lubricant which is common in plumbing from Home Depot or a store similar. It will doom the same thing and not damage the rubber in any way. Others have used dish soap as well, however my advise is not to do that as typically if that sits for a while ( say you are winterizing the engine) then it may thicken and be slightly more adhesive when you first start engine. In addition to that too much and you create a bubbly mess..not ideal for cooling. Just think of Hot Tubs...and why you don’t use bubble bath in them..
Sir Great Video This spring I plan on doing an impeller replacement on my Johnson 60 hp 2 stroke 2 cylinder you made it look easy you did a good job with the video Thanks for sharing JT
Thank You for this Video. I did it Myself last night for the first time. I was a little worried at first because after i took off the 5 bolts of my 70hp Merc i couldn't pull the transfer case off. I was worried perhaps there was a bolt i had missed. Well i didn't miss any, all it needed was a couple of hits from my mallet and i used a screwdriver to wedge it apart. OMG was the impeller chewed up. Pisses me off i was at mechanic few weeks ago and they said the cooling system was fine.
Thanks marynbeau. I have an 80 Hos Merc that didnt have water comin from the tell-tale, an was wonderin how to change the impeller, you saved me some hard earned, so thank you very much for the helpfull clip. She's up an runnin again and i have fish in the freezer. Big Grin.
Replaced my 2003 Mercury 90hp elpt 4s with new complete kit and it did not include a "sling washer" (rubber seal that slides down over drive shaft against top of pump housing) so had to go buy one separate. Also noticed my motor (from factory) had used a bead of silicone across back of pump assembly (which acts as a seal when the lower unit is bolted back to motor so exhaust gas doesn't enter pump area) so made sure to do that.
you got lucky with the splines lining up. I have fought to get these back on before because the shift spline and the input shaft splines wouldn't go back in. a lot of rotating the flywheel and wiggling the shifter will get it, and its a pain sometimes
Great video. One thing though: I read that you are supposed to renew the silicone gasket material at the rear of the pump (actually on the cross member behind the pump) to keep exhaust gasses from entering the pump area.
thanks. does this motor leak oil from the engine if the lower is removed off the engine? I just did this replacement today and trimmed the motor all the way up without the lower in it and it started to leak oil. A lot of it.
Thanks for sharing. I'm going to try and replace the water pump on my 2001 115 Optimax. All 3 of the Marine dealers in my areas have poor reviews for service and customer relations, so I figure I can do it better than they can! How about a Video on how to tune up an outboard?
great video very very informative i love it how you explain everthing. i have 120 hp OD 1996 and reverse gear dont work, what do you think what should i check in lower unit, thats where problem is, linkage cable is where it needs to be. It rattles like crazy when i shift to reverse? thanks (bayliner 1700 ls)
Your gear mechanism is spring loaded also make sure it doesn't spring back therefore when you mount back up your prop will be in gear make sure your prop spins freely while you're installing the lower unit
I didn't put it in forward gear and put it back together ... I must have turned 1 gear a little bit because now it is gear weather I'm in forward neutral or reverse position... Any suggestions on how to correct the problem thanks Jim
I did all that and everything came apart fine EXECPT the impeller wont come off the drive shaft! How do I fix that? it will move side to side and upand down slightly but ut WONT come off!!! and I am stuck!
Sorry I didn’t cover ever step, just thought some things you could figure out own your own, like replace seals in reverse order they were removed, same with replacing lower unit, replace as taken off, if removed in neutral, replace in neutral.
![บุษบา - เมนทอล [Official MV]](http://i.ytimg.com/vi/IGnWPokSEis/mqdefault.jpg)
One of the best how too i have seen, love the replay of the critical stuff.
10 years later, still a very informative video. Thx
And it wasn't 20 or 30 minutes long, like others.
Just did my entire water pump change with this video! Fantastic!
Very informative and very accurate video. I recently changed the impeller on my 115 Optimax, which is the same platform as the 90 in this video. The only difference is that my 115 Optimax was lung shaft, therefore, the gear shift selector rod was longer.
Only thing I did different is that as my impeller kit came with a new plate and gaskets, I also replaced the plate and gaskets. The kit from Mercury also came with a tool in order to ensure the top rubber seal is not pushed down too tight on the water pump housing.
THX! Dealer wanted $135 plus part and for me to leave my boat for a week. Took me about 1hr and saved $$$$. Will be doing it myself your video really helped!!! (2005 90 hp 2 stroke)
Did you have your motor in neutral when removing the lower unit?
I would like to thank you for taking your time to make this video, my water pump went out today, and after watching your video I'm going to replace my pump myself, again thank you.
Great help. Got me thru. I have a mercury kit with a bunch of washers. The parts diagram showed one just above and one under the impeller. No idea where the others go. Couldn't find anyone using them on TH-cam. Thanks.
Another fine video. Thank you. You are saving money for lots of folks by sharing your knowledge. Another topic that would be good is changing lower unit oil. I hear it is relatively simple but I'd like to see it done once before I try it. Thanks again for a great how-too video.
It takes a man from DIXIE to explain changing this water pump is SO EASY!!!!!!! Thank you, and will change my water pump on my 2011 90hp Optimax before the spring bass bite in NW Louisiana. :-)
The higher you tilt the motor, the easier it goes. Use the tilt lock by the transom. Note direction of flex on the old impeller, grease and insert new in same direction. Thank you Sir, quality video.
Thanks for the video pops! Best prayers to you and your family, keep on boating!
Cheers Bo, Very easy to understand, I have no qualms in changing my 90's impeller now.
Great Video, WAY More Informative than any other, You mentioned the little things a newbie would not know to do, like rotate shaft clockwise when sliding upper housing over impeller, Great video!
Great video! This worked fine for my 2006 60 hp Mercury Bigfoot. Very few differences. Thanks for posting. Never realized how easy it was : )
Thank you so much for this video. I am attempting to order what I need and replace mine. I have already replaced fuel pump, plugs, runs great just noticed the puss stream lightening up some. So figured rest is new. Great video.
I love your video! You have just saved a friend of mine $200.00. Thanks again!
Thanks for this ! I might suggest NOT to use grease, its a petroleum based product and thusly will weaken the rubber of the impeller. You can however pick up some silicone lubricant which is common in plumbing from Home Depot or a store similar. It will doom the same thing and not damage the rubber in any way. Others have used dish soap as well, however my advise is not to do that as typically if that sits for a while ( say you are winterizing the engine) then it may thicken and be slightly more adhesive when you first start engine. In addition to that too much and you create a bubbly mess..not ideal for cooling. Just think of Hot Tubs...and why you don’t use bubble bath in them..
Thank you very much for posting this video! Dad & I just got done doing this, excellent step by step tutorial, very thankful sir!
Sir
Great Video
This spring I plan on doing an impeller replacement on my Johnson 60 hp 2 stroke 2 cylinder
you made it look easy
you did a good job with the video
Thanks for sharing
JT
Thank You for this Video. I did it Myself last night for the first time. I was a little worried at first because after i took off the 5 bolts of my 70hp Merc i couldn't pull the transfer case off. I was worried perhaps there was a bolt i had missed. Well i didn't miss any, all it needed was a couple of hits from my mallet and i used a screwdriver to wedge it apart. OMG was the impeller chewed up. Pisses me off i was at mechanic few weeks ago and they said the cooling system was fine.
Thanks marynbeau. I have an 80 Hos Merc that didnt have water comin from the tell-tale, an was wonderin how to change the impeller, you saved me some hard earned, so thank you very much for the helpfull clip. She's up an runnin again and i have fish in the freezer.
Big Grin.
Very nice and quite informing, lets me know that I should go ahead and purchase a boat needing a water pump replaced. Thanks.
Replaced my 2003 Mercury 90hp elpt 4s with new complete kit and it did not include a "sling washer" (rubber seal that slides down over drive shaft against top of pump housing) so had to go buy one separate.
Also noticed my motor (from factory) had used a bead of silicone across back of pump assembly (which acts as a seal when the lower unit is bolted back to motor so exhaust gas doesn't enter pump area) so made sure to do that.
Very helpful!! Thanks so much for sharing!!
you got lucky with the splines lining up. I have fought to get these back on before because the shift spline and the input shaft splines wouldn't go back in. a lot of rotating the flywheel and wiggling the shifter will get it, and its a pain sometimes
Thanks, helped a lot, my friend has the same motor ,will help her change her h20 pump tomorrow
Thankyou sir. This video helps me tremendously.
thank you 100% my friend ..just took my time and it all worked out fine..good teacher you are..thanx...
Great video. One thing though: I read that you are supposed to renew the silicone gasket material at the rear of the pump (actually on the cross member behind the pump) to keep exhaust gasses from entering the pump area.
Need to do my Impeller on my 97 90hp 2-Stroke. I’ve only done one other on my 4hp mercury I had awhile ago. Thanks for this video!
Great video! Gonna do this on mine this weekend.👍👍
Thanks for sharing. Going to try this. Hope it's as easy as it looks. Hopefully that's my problem
I appreciate the very fine and instructional video. Keep up the great work.
Man I was about to take mine to the shop I'm doing that this weekend now good video
Thank you for your video. Very informative.
Very nice video. Thanks for taking the time to make and post it.
Thank you so much, I just finished replacing the water pump on my Mercury 90 HP! You made it very easy! Thanks again, Phil
Thank you Sir! greetings from Italy
Thanks for sharing old man !
Good video thank's. doing 20 hr service on my 2016 90 merc 4 stroke can't get lu to mesh with upper unit, help!
Very important to grease the end of the drive shaft before putting back together.
What type of grease do you use? Will Quicksilver 2-4-C Marine Lubricant with PTFE work?
very cool, I was scared to do it until watching this video, thanks Tc
thanks for sharing, tired of paying the high price dealer, will be changing two.
Great video I'm doing this for sure!!!
where do you put the gear selector in the bottom cowing at when re installing lower unit and also the lower unit what gear should it be in?
ASAP
Thanks for the vid, now I can do mine and save some money.
thanks so much, very helpful
Thanks for the vid you the Man
thanks. does this motor leak oil from the engine if the lower is removed off the engine? I just did this replacement today and trimmed the motor all the way up without the lower in it and it started to leak oil. A lot of it.
best video ,im going to do mine now thanks a lot
Now this is my kind of video, I love "how-to's". Can you make a video explaining how to flush your radiator on a car?
Thank You so much sir... Your video truly helps us so much. AAA+++
thanks, Les I'm glad you watched and liked it. hope the video was a help to you.
Great video
Great video
Thank you...
Thank you for video
Thanks for sharing. I'm going to try and replace the water pump on my 2001 115 Optimax. All 3 of the Marine dealers in my areas have poor reviews for service and customer relations, so I figure I can do it better than they can!
How about a Video on how to tune up an outboard?
great video very very informative i love it how you explain everthing. i have 120 hp OD 1996 and reverse gear dont work, what do you think what should i check in lower unit, thats where problem is, linkage cable is where it needs to be. It rattles like crazy when i shift to reverse? thanks (bayliner 1700 ls)
Your gear mechanism is spring loaded also make sure it doesn't spring back therefore when you mount back up your prop will be in gear make sure your prop spins freely while you're installing the lower unit
And what's the right direction clockwise or counterclockwise???
Great stuff 👏 👍 👌
will this be the same or close to change waterpump on a 25hp?
Thanks !
I didn't put it in forward gear and put it back together ... I must have turned 1 gear a little bit because now it is gear weather I'm in forward neutral or reverse position...
Any suggestions on how to correct the problem thanks Jim
Is this the same for a 1981 Mercury 115?
Nice👍
@tdub22226 Hi. I have a Mariner 140. is it the same fix?
I did all that and everything came apart fine EXECPT the impeller wont come off the drive shaft! How do I fix that? it will move side to side and upand down slightly but ut WONT come off!!! and I am stuck!
i gotta do this on my 90 mercury only thing is mine is on of them old two ton inline 6 motors i hate to do it but imma have to
So you do not need to replace any Gaskets ???
I have got one smart brother in-law: good job Bo
thx
Would be nice if you showed how to properly install the gaskets. Also it would be helpful to show line up of gear linkage
Replace the gaskets in reverse order you removed them,
Deja vu
Lube it with Pledge or Amour All (water based silicon lubricant)
Did I miss the gasket replacement in this video
Sorry I didn’t cover the gaskets step by step, just thought common sense would tell anyone to replace gaskets in reverse order you remove them.
He forgot the High Temp Silcone
Really, it's not that easy. Didnt show how to re install it in the motor cause you have to line up the splines and make sure it's in netural etc..
Sorry I didn’t cover ever step, just thought some things you could figure out own your own, like replace seals in reverse order they were removed, same with replacing lower unit, replace as taken off, if removed in neutral, replace in neutral.
Glad I wasn't drinking while watching this! Get some help with the camera! Geez....
Glad you made it through the clip, no help best I could do. Hope you seen enough to be able to replace your pump.