MERCURY 150 EFI WATER IMPELLER CHANGE | HOW TO

Sorry for the audio. The road noise is bad in this video. Watch as I show you how to change an impeller on a Mercury 150 four stroke.
Thanks for watching and be sure to like, subscribe, and hit the bell to be notified when I upload more videos like this one!
Follow me here:
Instagram: / reel_life_fisherman
Twitter: / reellifefishin
Facebook: / reel-life-fisherman-20...
Edited by: Noctem Productions / @noctemproductions.

[@ReelLifeFisherman]

I would like to add .. in saltwater I would not recommend putting loctite on the impeller housing bolts .. use perfect seal or a light coat of anti-seize .. the factory uses loctite there I wouldn’t personally..

[@ajfromcjbasements6574]

I also work for tracker... Yeah locktite there is a pain in the ass

[@ajfromcjbasements6574]

I put it in forward and turn the prop shaft when I'm putting it back on I've seen a newb force one in... You already know how much of a headache that becomes 😂

[@philwyatt2160]

Another great informative video. I got lucky and it slid straight back in. I had left it in gear. Cheers mate!

[@kenthomson4627]

One of the best impeller changes for a Fourstroke that I’ve seen. Thank you 👍🏼

[@ReelLifeFisherman]

Thanks. I appreciate you watching the channel and commenting.

[@FTFishin]

Great video and thank you! Saved me a lot of hassle seeing how you engaged the shift shaft while being in neutral…not sure I would’ve figured it out otherwise.

[@glenwagner943]

That truly was the best video I’ve seen on impeller changing. Hopefully you are a teacher because you have great skills on getting the point across.

[@ReelLifeFisherman]

Thanks you very much! I appreciate that! I do train guys at the shop.. but maybe one day when I’m too old to work in the shop I can teach ! lol I just tell it like I would like to learn it myself for the first time..thanks for watching the video and the comment..

[@ReelLifeFisherman]

Thanks you very much! I appreciate that! I do train guys at the shop.. but maybe one day when I’m too old to work in the shop I can teach ! lol I just tell it like I would like to learn it myself for the first time..thanks for watching the video and the comment..

[@aceavram712]

Your a legend my friend! Thanks from Australia! I completed the 100h service from other video and it worked great. They charge $650 for that service here. I wasn't happy after my last service with local Mercury dealer here. They charged me for some parts and didn't even replace them. I service electronics and use a trick to see if they replaced the parts. I put a small mark with sharpie on the part then see if the mark is still there after I pick it up. Got charged for some filters and he swore it was replaced yet my sharpie mark was there where I put it. I was NOT happy. Thanks to your videos I now know the parts were replaced.

[@killa1957]

Another great instructional video! You are by far the best “How to” teacher on the web.

[@ReelLifeFisherman]

Thank you very much I appreciate that a lot! Thank you for watching the channel and commenting!

[@petersuda7211]

Great video. Thank you for taking the time to put this together. Very informative!

[@romanshishkin4107]

Thanks, you went in to the detail. By far the best video out there how to change impeller 👍

[@ReelLifeFisherman]

Thanks I appreciate it! Hope it helps guys out

[@jeffselano2300]

that is by a mile the best video on the internet for this. Thank you

[@martinkonig7112]

Again, great video and thank you for the quick reply. It was a little tricky to get lower unit back into it, but with patience and your tips it worked out. Cheers!

[@spanishjo4282]

I award you the best golden charismatic stylish mercury engineer 2022. I have this 150hp on my Boston whaler. Great video!

[@harley042008]

Thanks for the video, I have a 2000 150 xr6 and I remember a few years ago I had a heck of a time myself doing it. So I’m going to get a friend to help me tomorrow and thought I would refresh my memory and watch yours. Your spot on bud thank you. 😊

[@DialedIn57]

Your videos and instructions are awesome. Great job. You can tell this is not your first rodeo! Thanks

[@daver3990]

Video was very helpful especially with the plywood you used to hold lower unit thank you . Nice job !!!!

[@to5msheppard]

We did ours yesterday I wish I had watched this video before because we put it all back together tightened everything and then realized it only went forward we looked up your video and it was awesome exactly what we needed to see in here so thank you very much and great job explaining everything very simple

[@cryptojohnny7781]

Dude I learn so much about my boat from you. Perfect videos ! Thanks for #3 repair . I started out with you teaching me how to install a Minnkota Ulterra auto stow motor .

[@DrJohn493]

Good, thorough demonstration! But after watching this vid, I'm glad I decided to let the boat shop replace the impeller on my Merc 115. Money well spent for someone that is not familiar with outboard maintenance and repairs. Replacing the impeller on our sailboat engine was way easier but that was years ago when I didn't mind doing mechanicin'. And had to do mechanicin' while underway.

[@nathanswensen4542]

Thank you. This video was a life saver and saved me money. Seriously thank you.

[@jamesshelleywijnhamer19]

What a great video. Thank you. Make me more at ease at doing it myself. I've done a lot of car mechanic work. Putting the lower unit in seems a bit tricky. Thanks again

[@mikesanders902]

Great explanation of steps and logical reasons why they are taken

[@williamd6967]

Man this is the best how too Water pump R and R on tube.Well explained there is another with a 115 guy had tobacco or something in his mouth couldn't understand him.in a hurry dropping shit scratching things no details thanks you.this took me 35 minutes with my prop on.A+A+. William

[@Maynardd]

Very good detailed video. I can do this now. Thank you.

[@brianhoffman1247]

Great job showing and explaining each step in sequence along with the tips and tricks !! Will be referring back to this video when it's time to do mine ..

[@ReelLifeFisherman]

Awesome glad you like it and it was helpful.. thanks for watching and commenting

[@michaelfilippi4296]

I am waiting on parts to do my impeller for the 300hr service. Great video. Going to attempt it myself

[@hooks4nooks]

You do great videos. I'd love to see you do a walk through on switching a Mercury 115 pump to Prop with bay kit, extensions for shaft, shifter, water pump, longer studs.... You helped me in comments but to actually watch you do one would be awesome. So much to it. And then switching back to pump too. 👍 Take care.

[@kylekraemer339]

Great video. Thank you for making this!

[@kevinmilani1]

I learn something new from every video you make. Thank you so much for everything that you do and for sharing it with all of us. I really appreciate it! Keep up the awesome content.

[@hardrockminer-50]

Great instructional video! Thanks

[@asudavew]

Subscribed. Thanks for posting. Super helpful video. I'm going to try and change my tomorrow...

[@johnboivt]

literally about to do this same job. You are a life saver!

[@ReelLifeFisherman]

Awesome glad it was helpful! Thanks for watching and commenting!

[@braxsor1999]

Thank you for making this. Very helpful.

[@ReelLifeFisherman]

Thanks I’m glad you like it! Thanks for watching and commenting!

[@alaskanbuilt]

Thanks brother! very informative and great explanation on "how to"... I refer back to your video this summer when changing mine out.

[@ReelLifeFisherman]

Awesome! I’m glad to hear that these videos really help people... thanks for watching and commenting I really appreciate it!

[@levonhobbs4342]

Great show, you do good work.

[@aeroflyte]

Very generous of you. Thank you.

[@gvanhove]

I just took mine apart and it shows the impeller fins twisting the oposite direction of how you inserted the new. Actually mine looks identical to your replaced impeller and you have 4 fins that turn clockwise and two badly worn. If you think about what you mention in twisting the impeller clockwise to insert it into the housing and the housing is upside down in your hand then you'd most likely want to twist it counter-clockwise while inserting. Either way it should not hurt anything though, but it is possible.

[@jimk4267]

you are correct he installed with a backward twist

[@scottroyle2902]

Thanks! Well done, I will be doing mine soon.

[@Artdecodec]

Thanks! Great video for my 2017 115hp Merc. Are the orange seals for the water tube?

[@j.l.daltoin2238]

when I put the impeller in I put it on the shaft and watch the keyway go in and rock impeller back and forth to be sure it's in position then slide the water pump top housing on slowly turning the drive shaft clockwise only as I put the pressure on the w/p top housing as it slowly goes down into position with a little pressure on it going down with my hand the reason I do it this way is if I put the w/p impeller in the housing first and push it down I've had the key fall out the way you do it even with the grease trick but if I put impeller on first and I can see the key go in and line up so I feel a lot better that I've got this part right but like you I have better luck doing the going back in the neutral position good video sir I guess different strokes for different folks lol

[@paulgrassi6356]

Great video you make it look easy when I need to do it. Cheers

[@ReelLifeFisherman]

Thanks hope it helps and thanks for watching and commenting..

[@davidyoung3020]

great job, clear instructions. Cheers.

[@ReelLifeFisherman]

Thanks I’m glad it was helpful! Thanks for watching and commenting..

[@bobmutina3771]

Great informative video. 👍🏻👍🏻

[@nomad7412]

As always, a pro example of how to make a "how to" video with precise and succinct instructions. Even though I don't have this make of engine, I still love the explanations you give of everything and the reasons for doing them. Ty for taking the time and sharing your skills.

[@ReelLifeFisherman]

Thanks I always try to explain things the way I would like to be taught.. I appreciate you watching and commenting as always my friend! If I ever make it to Australia I will look you up!

[@mattpingel7742]

Great video!! You a lifesaver, Thanks again!

[@ReelLifeFisherman]

You’re welcome!

[@simonblanton9319]

Thanks for the video. About to do mine next week.

[@ReelLifeFisherman]

Awesome! Glad you found it helpful! Thanks for watching and commenting!

[@ABQGeo]

Good job. Best video by far on this topic. Like you, I have found that the question of doing this in gear or neutral meets with about equal success. The Mercury manual says In Gear. I've used a large properly fitting socket with breaker bar to slightly rotate the flywheel to get the drive shaft to align. Getting the weight of the propeller off of there is a must for this old man :-) Thanks much.

[@ReelLifeFisherman]

Thanks I appreciate it! Glad you like the video! Yeah I just seem to have better luck doing them in neutral most times .. but if I’m alone I don’t have a choice but to do it in gear like the manual will tell you.. tanks again for watching and commenting!

[@kckrol85]

I'm doing the lower unit install on Saturday. Just had Seals replaced on a 2016 115hp Command Thrust and I'm sure I'm going to get it back with shift shaft off. I took the lower unit off with shift lever in forward. I thought if you turn the shift shaft clockwise it would take you from Neutral to Forward. And cc for neutral to Reverse?

[@danielboles6263]

Ok. I got it thanks for your help appreciate the feedback

[@corvette7444]

Best video i have seen on removal of water pump impeller.Was confused on the you have to bump it that to me means you have to kit the key and bump the engine other than that good job.

[@ReelLifeFisherman]

Awesome glad you like it.. you can take it off in forward and spin the prop to get the splines to line up .. whatever works best.. I have a video coming up on doing it in gear also.. thanks for watching and commenting!

[@micheledifeo4938]

great video, the water from my engine comes out in flots. I have also changed the impeller and the gaskets. Mercury orion 60 hp from 2016

[@waynepatience8137]

Very good video. Thanks!

[@albydigiammarco3373]

Thank you very much for this video. Very informative.

[@ReelLifeFisherman]

Awesome glad it was helpful! Thanks for watching and commenting..

[@albydigiammarco3373]

@@ReelLifeFisherman no problem. These videos are much appreciated as I'm in Zambia Africa and the nearest boat Mac is three hundred kilometers away.

[@kevinwasilauskis8943]

Thanks for the video. I bought a used Targa 18 this year with this outboard on it. I'm about to do the winterization on the motor. I'm probably going to think about the impeller during the winter. See if I can get the courage to do it myself. It has been about 3 years. Is that Pro Kicker a 20" or a 25"? Thinking about getting one. Thanks again!

[@alanaho4915]

Don't have to do it yet but feel 80 percent confident with your step by step and explanations. Awesome! I won't have 300 hours (maybe 150) on my engine by end of 2021 but it will be 3 years. Doing oil and filter, gearcase lube, etc next week for annual maintenance (84 hrs total). Thank you!

[@ReelLifeFisherman]

Thanks for watching the video and glad you liked it and glad it’s helpful.. I have another video where I do an annual service on a 75/90/115 if you haven’t seen that one yet you should check it out.. let me know if you have any questions..

[@alanaho4915]

@@ReelLifeFisherman i watced the annual first as I was reviewing my library videos from last year. Your video was a recommendation so I watched it. Because of it I will be making a few changes like the order that I do the process and a couple tools i will add (wide flat head and filter wrench, funnel). Thank you!

[@SF-rl7hl]

Very good informative video for the DIY at home. Ty

[@ReelLifeFisherman]

Thanks I’m glad you found it helpful! Thanks for watching and commenting!

[@xtr3m3fLx]

Can I get your thoughts on using 2-4-C grease to *lightly* coat the impeller housing to reduce friction on initial start-up please? Great informative video, thank you.

[@salmonkiller2545]

I did my DF175 last spring and boy did I have a heck of a time getting it back on.... I used a strap to help hold the lower unit in place... my shift rod was easy.. I just couldn’t get the spline to line up on the drive shaft...

[@ReelLifeFisherman]

Yeah sometimes they can be a pain.. but try bumping the starter next time.. each time something else can be a pain.. or if you get lucky the slide right back on sometimes! Lol. Thanks for watching and commenting I appreciate it!

[@wangu4951]

great job on the vid. I did this service on my mercury 115 after not running the motor/boat for 3 years. By any chance do you know what i should check if my boat is sputtering? I siphon out the old gas and put new gas in it. my boat will run fine then all of a sudden the motor will sputter and fuel gauge jumping up and down.

[@flex2win]

Helluva video!!!!! How much difference is there with say the Merc 80hp jet, besides having to remove the jet foot to get to the drive shaft removal/water pump housing??

[@Bassmastr-ly5vf]

You rock. Thanks 4 the vid👍🏻

[@ReelLifeFisherman]

Thanks! Glad you liked the video! Thanks for watching and commenting!

[@ronaldhowell4146]

Thank you for this, wish i would have seen it before i did mine, hopefully i can go back out tomorrow and fix it, hand control throttle stuck in forward

[@DrBradyHurst]

What’s the size of the notch you cut into the wood? Great video! Changing all my stuff today!

[@wayneverrill3348]

Thank you, very informative.

[@ReelLifeFisherman]

Thanks glad you liked it and it was helpful! Thanks for watching and commenting

[@robb5834]

Hi from Rob over pond love vids very good teacher love how explain it not fast but so learn brill if got learning probs well done bro peace rob

[@hudsonmarinarentals7416]

Thanks for the video!

[@NorCalHunter]

Another great video! Jason, can you do a video on boat tint or suggest a shop that won't bleed the bank?

[@ReelLifeFisherman]

Thanks I appreciate it ! I haven’t ever done window tinting .. and anyone I’ve ever seen have it has just had it done a tint shop.. but I’m not sure where.. thanks for watching and if I do find out .. I will let you know

[@aaronbaugh2702]

Very informative Thanks :)

[@ReelLifeFisherman]

Thanks ! I’m glad you like and it’s helpful! Thanks for watching and commenting!

[@johnsnetsinger7105]

Great video! That is the only maintenance item I have not done on my 150 FS (95 hours) I wish I could see a full install of the Pro Kicker on that Tracker, I want to add one to mine.

[@ReelLifeFisherman]

If I ever do one as a side job I will definitely make a video.. glad you liked the video and hope it helps.. thanks for watching and commenting!

[@johnsnetsinger7105]

@@ReelLifeFisherman 185 hours now, replaced the impeller today along with all of the other 3yr/300hr maintenance - referred to this video and it all went well. As a side note, had a 9.9 EFI Kicker installed and completed the maintenance on that today too. Dang that factory oil filter was a SOB to get off!

[@loum2712]

Very nice video. Haven’t decided whether I’ll change in neutral or forward. Since I’m alone I may go forward. Wish you’d give the plywood slot dimensions.

[@jasonpalladino7895]

Haha not going to lie. Was hoping it would give you trouble. Watching you do it will save me the frustration.

[@ReelLifeFisherman]

Lol! Yeah sometimes you get lucky.. but more often then not they give you some trouble.. glad the video helped! Thanks for watching and commenting!

[@tracyratzlaff7421]

great video, thanks !

[@ReelLifeFisherman]

Thanks! I’m glad you like it ! Glad it was helpful.. thanks for watching and commenting I appreciate it

[@abarber971]

Question… is it ok to put a little grease on the surface where the impeller meets the housing? I noticed when you were trying to line up the key way that it gave a little resistance, if the shaft moves the spines are going to fight you on reinstallation.

[@teedog427]

Outstanding content..... Thanks

[@ReelLifeFisherman]

Glad you like it! Thanks for watching and commenting!

[@vdccdc1583]

wow....your work was flawless bro. explained things in detail and covered all the bases... paying $300 for a 1 year service etc, is a little steep for some. What does it cost for the 5.5 quarts and the gear oil and parts to do the annual maintenance. ? thx

[@fishnbaja1]

Well, I'm personally glad you didn't get the lower part right the first time. Otherwise, I don't think I could have put it back together myself. After a few curse words, and a pair of pliers to turn the shaft just right, I was able to finish the project. That, however, did not fix my problem, which was that water does not come out the tell tale valve. I have the same engine you have. Great video, either way.

[@Z-Bart]

At first I thought this was going to be an easier job than the impeller on my Honda 40. After seeing the struggles with the shift shaft I can see this engine is more difficult. Good video though.

[@martyepperly5803]

I'm about to acquire a 2014 Merc 150 with about 300 hours on it. Could you come do another video on a 300 hour service on my motor? 😄 In my younger years I might have tackled this job. But, if I were to have issues reinstalling the unit, my lack of patience would interfere with my success. Thanks for another great video. I'm a new subcriber.

[@paeroajohnston5123]

Awesome vid bro, Is there anything different on the 100hp model?

[@andrewduncan2070]

Very good video

[@jeremypeer8060]

Does it matter which way you turn the impeller when you put it in the housing?

[@tracyratzlaff7421]

Can you tell me what part/part numbers are needed to do a service in my 2013 150 Optimax, including fluids impeller gaskets etc! Thanks

[@kathyparker8626]

Do you ever use a sealer between any of the impeller gaskets? Just wondering because on my friends Suzuki 300 he ended up needing to because of exhaust leaking into water pump housing.

[@kellys8757]

did you also have to connect the tube for water pressure / speed odometer?

[@nanaiu513]

i see all this video replacing water pumps... but do you ever need to replace water tube upper seal?

[@brettgormus3455]

I followed your steps doing mine. Quick question. With the motor off, should the propeller spin when it is in forward or reverse in the appropriate direction or lock both ways? When it is in neutral, it spins freely in both directions

[@richardvinar5652]

You put the impellar in backwards , the first time you put your boat in gear the impellar has to go in the other direction , which can damage it .

[@tecoon5002]

Exactly my thought....should be twisted in counter-clockwise (except for counter-rotating motors).

[@socomsmith3241]

Your wife did a great job with the camera!

[@ReelLifeFisherman]

Thank you! She will appreciate that a lot! But don’t let it go to your head honey! lol

[@reellifefishermanswife8515]

Thank you. ☺️

[@martinkonig7112]

Great video

[@ReelLifeFisherman]

Thanks glad you liked it! Thanks for watching!

[@jimbarnett8913]

Thanks for the info.

[@Yarrum19]

Very good! 🤠

[@craigshaf]

Any chance you can post the cut out dimensions on your table for the lower to fit that cleanly?

[@lindsayfraser4791]

A great video. Many thanks for taking the time to do it. 2 questions. Being from the lock up capital of the world. Melb Aust we run in salt water. Is it best to use the muffs on the bottom of the foot or use the water flush on the side of the motor. Also getting the water tube on again would putting a smear of rubber grease be ok??

[@ReelLifeFisherman]

Thanks I’m glad you liked the video! So I will always run the motor on the muffs after the salt unless I forgot them at home! lol the flush on the side works great for reverse flushing.. it is not supposed to run the motor on that.. it’s good to use if you ran through sand or mud.. or if you don’t have the muffs or can’t use them like if you keep it at a slip .. and absolutely a dab of grease is a good idea .. I do it every time on the water pick up tube coupler.. thanks for watching and commenting! Let me know if you have any questions..

[@scottroyle2902]

Thanks for the video. When I removed the housing 3 of the 4 bolts broke off. I am thinking a machine shop is going to be needed to remove and maybe re-tap the bolt or install an insert. Any suggestions?

[@scottroyle2902]

I took it to a machine shop. I will get it back together and see if it cools. More questions in the future I am sure. Thanks.

[@hooks4nooks]

Great video. I'm putting a lower unit and bay kit on my 115 merc today after taking off the pump. The linkage is done in the tiller but I had questions on the extensions on the shaft and shifter. Do I just grease the extensions together? A guy on KZbin said to super glue shaft extension to shaft so it doesn't stay up there when you put the pump back on. That doesn't seem right. But have motor in neutral when doing all this and just grease the extensions on when stuffing it all up there like you did in this video? Much appreciated. G

[@ReelLifeFisherman]

So the only bay kits I have installed all came from mercury had the extension for the lower unit itself with the long studs and came with a new lower unit with the longer drive shaft and shift shaft then a extension for the water tube that sits in a notch in the lower unit extension. I add a dab of grease in each point for the water tube with O-ring and grease on the drive shaft splines and shift shaft splines .. Hopefully that helps and makes sense. Let me know if you have any questions or I didn’t understand exactly what you were asking. Thanks for watching!

[@hooks4nooks]

Thanks man, yes, that's exactly what I got from Stevens Marine. Lower unit, with bay kit and longer extensions for shaft and shifter, water pump extension and the longer studs. Sounds like the same. So it seemed to all go together well. Only thing, when it was all together before tightening down the lower, it had maybe a 1/4-1/2 inch gap but snugged up once the bolts were put on. Do you find that normal for everything to jive together the first time with that bay kit? So once it was all put together, it shifts, pees, and seems to be functional. That shaft extension wouldn't fit up in the housing and I had to take the cowling off in order to put it above the mid section on top of the shaft? I'm going to check the oil in lower and then run it. Anything in particular I should look for that might not be right? If it pees, shifts and runs fine I should be good huh? I think the next time I'll definitely take it to the shop. Thanks for your time. Great videos.

[@angrycelticreeper817]

This might seem strange being so long after your videos, I have a 1987 mercury 150 2 stroke outboard, in my lower, I have a small tube by the gear shaft, can you advise on what it might be

[@jamesthings1496]

Definitely gonna make one of those tables

[@ReelLifeFisherman]

They really help out ! Simple to make and put away.. thanks for watching!

[@DrBradyHurst]

@@ReelLifeFisherman About what were your measurements on the cut out?

[@ron8979]

Please,please do a video on cleaning the steering cable out that connects to the steering arm. Usually the steering wheel will start to get a little stiff. Any possibility of you doing a video like this?, I love your other videos and I have use them, I watch them repeatedly every time I need to do the maintenance again. Also I left you a thumbs up

[@ReelLifeFisherman]

Thanks I’m glad you like the channel! Yes absolutely I could do one on that.. if I come across someone needed it done I would definitely film it.. thanks for watching and thanks for the input I appreciate it!

[@breerobles8741]

AMAZING!

[@ReelLifeFisherman]

Thank you !

[@ticketwlk]

can i use the o rings supplied in the kit 18-3214d in place of that beveled taller seal?

[@rayray2563]

Question? The round white plastic piece that covers the upper drive shaft seals, which has that metal ring around it! Can that be taking off and be inspected inside and cleaned? And can I reuse the plastic piece and metal ring? I ride mine in salt water and want to make sure I don’t have salt corrosion under it. And to have a peace of mind. At around 10:56 on the video you can see the part I’m talking about. It has red letters on it. Thanks your videos are awesome!

[@rayray2563]

Or is it smart to replace the plastic piece, metal ring, and o-ring that goes around the plastic piece? And clean it out good. Actually I’m trying to pull mine out and seems like salt has it stuck pretty good. So I’m still needing help but gonna pull it out now that it’s stuck in their pretty good. As it doesn’t want to come out easy. I’m gonna let some corrosion x sit on it over night and hope it comes out easy tomorrow.

[@mahmoodahmed7112]

Hi, may i know from where i can get the stainless steel shield that you have on your tail engine.

[@Bullzak_83]

Good video.