Mercury 2017 115 HP Water Pump Impeller Replacement

2017 Mercury 115 hp 2.1 L water pump replacement @ 300 hrs of service

[@johnrogers3781]

Excellent videos. You surely know your stuff. I'm 66, but you reminded me of my pops when I was younger.

[@thefishstalker7640]

Thank you

[@kerrys.5725]

YOUR WIFE IS ONE HELL OF A MECHANIC ASSISTANT! SHE KNOWS WHAT YOU NEED BEFORE YOU NEED IT. THAT IS A PRICELESS COMMODITY! DIAMONDS ARE DEFINITELY IN ORDER! 👊😎

[@thefishstalker7640]

Definitely agreed! Thanks Kerry

[@dbcooper692]

Rob, you made this look like kids stuff. Not everybody can work on cars and boats. I remember back in the 1950s and 1960s auto mechanics were often called grease monkeys. Anyone that can work on today's cars is a smart person and you should be very proud!! Thanks for the video and I'll see you on the water!!!

[@thefishstalker7640]

Thank you! Yea I've been a mechanic for 34 years unfortunately its destroyed my back! People now don't realize how easy they have it

[@dbcooper692]

@@thefishstalker7640 I know what you mean I am a retired Oroweat bread delivery salesman and worked there forty years. I have had many surgeries and am paying for it now. It has got to the point I can't take my boat out by myself. That's why I have been asking you about bank fishing at Folsom Lake for catfish. I catch them at Scotts Flat and Collins Lakes but I want to give Folsom Lake a try the coming spring.

[@thnd-uo4vp]

Thanks for going over this. I did one on a Suzuki outboard (alone, mid 80’s) in my younger days and it wasn’t fun. Plus, I didn’t have a awesome helper like you did.

[@thefishstalker7640]

Thank you!!

[@DanWLakeland]

Thanks for the video. Very helpful. My Mercury Tech kinda told me how to change the impeller and made it sound too simple. But your video shows what it really takes to get it done. Thanks again.

[@thefishstalker7640]

Yea and you don't have to worry about getting the impeller blades in the right or same position they flip as soon as it starts up

[@bobbarnhill8557]

I made a lower unit stand out of 2x4's. The lower unit sits right in it. Much easier work up in the upright position. Its also much easier to install the impeller first. Use some dish washing liquid and spin the cap on over the impeller. Super easy. I also leave the shifter in neutral. If your working solo using a few ratchet straps to hold up the lower unit during install is a huge help..Thanks for the putting the video together.. great learning tool for the DIY.

[@thefishstalker7640]

Thank you for the tips , I appreciate it! And thanks for watching the videos

[@davidv7616]

Thanks for showing me this. Been looking everywhere for a video on it. You saved me time and money.

[@thefishstalker7640]

Glad to help! Thanks for watching

[@onestackmack1]

Great video thank you. I feel confident to do it myself with a extra hand of course.... cheers

[@LANDCRUISERLIFE]

Thanks for video, a big bench vise makes a breeze...

[@Mr91495osh]

I have been boating for fifty years. My sport and my hobby. My next outboard will be a Mercury 115! GlennFHoward

[@thefishstalker7640]

Awesome! So much better than what we used to have, I'm at 500hrs now trouble free

[@jeffmullis-dr4no]

Love your helper!

[@Denis4x4]

Спасибо. Все просто и понятно.

[@gvarelajv]

I use a strap to hold the lower unit before I remove and then use a strap again to install the lower unit it helps to ratchet it up with the strap. Good video thumbs up.

[@thefishstalker7640]

Thanks, and thanks for the tip , I'll be doing it again soon probably @ 800 hrs already hit past 600 in the last year! Lol

[@lipprippers]

Really great video Rob. Time to get back out on the water brother. Let's go there's some fish lips waiting for us LOL

[@dannie3117]

Thanks for video Rob. I missed the linkage part. Do you have to disconnect the linkage when dropping the lower end? When your wife was spinning the prop, is that what hooks up the linkage?

[@thefishstalker7640]

No the linkage just slips together when you put the lower unit up, way easier than the old ones

[@Muhfuckaa]

​@@thefishstalker7640When you say "The old ones" how old are we talking? I'm about to do a Mercury 75hp 2001 4 stroke

[@dannygreen6145]

Brother that woman is a keeper

[@thefishstalker7640]

Definitely! Hey thanks for watching the videos

[@lenabaude6101]

Great video. Maybe you have some experience with a mercury 80 FourStroke. Could need some help please.

[@thefishstalker7640]

Actually done alot of outboard's and inboards if you live in the Sacramento area I can help ya

[@thefishstalker7640]

PartsVu

[@TakeDeadAim]

IF you're going to do it, find a Black and Decker "Workmate" work bench. The lower unit will drop right down and then you can work on things with it in an upright position. I find it easier to remove the prop prior to pulling the lower units on either OB's or Stern drives. Saves weight as well. Oh...use a grease pencil or some nail polish/model paint to mark the exact location of the shafts relative to the case and the unit will slip right in.

[@thefishstalker7640]

Thanks for the tip I'll be looking for the workmate bench

[@lostrevinos]

Great idea! I just ordered a Workmate bench! Thanks for the tip!

[@Laudrengen]

Man I'm trying to get to the FSM on my unit. I'm strugglin'... Got any resources on how to approach it? :)

[@thefishstalker7640]

What is the FMS? I'm not sure what your talking about, I've done the lower unit seals and water pump agin since this video, didn't see the comment until now

[@watchingvideos4309]

Question. I don’t remember which way I placed my impeller blades. I get the correct water psi throughout the throttle range but when I’m doing wide open for a time the psi gets below 10psi. Is it possible my blades were backwards or would they correct themselves with the force of water? Is it just not getting the water because of the pontoon displacement of water at 30mph?

[@thefishstalker7640]

Dosen't make any difference which way the blades are they flip as soon as you start the outboard

[@watchingvideos4309]

@@thefishstalker7640 ended up redoing my impeller. They didn’t flip after half a season of running backwards. Flipped the same impeller and now I get 20-25psi at throttle. I’ve seen videos where they flip. Mine did not though

[@thefishstalker7640]

Yea usually they do flip, I'm due for another one soon put 400hrs on the one, I'll see which direction I put them in , was yours correct bent to to the right looking at it upside down?

[@williamd6967]

Would a 2016 115 4 stroke with CT (Comand Thrust) be the same process?Thanks William

[@thefishstalker7640]

Yes

[@Lear356045]

hello your video is great. during my removel I follow the MErcury manual and it says to pu the gear in neutral, I removed my lower unit before the winter to do the water pump and the the gear lub change easily on the stand. Yesterday I went to re-insatalled, the gear should now be as per manual in FWD gear. mmmmm. I know the gear housing in in neutrl cause the prop shaft turn freely both ways. How ever whent the lower unit is installed with the shift shaft handle in neutral and prop shaft neutral, whay I cannot moved the shift handle fwd or Reverse? thanks pat

[@thefishstalker7640]

Well just as with any manual transmission always put it in gear that way you can turn the output shaft to line up the splines! Now you will have to turn your crank to get the shifter to move , I'd recommend turning it by hand and have someone move the shifter, the lower unit dosen't always go up easy, I did mine agin since the video and really had to shake the crap out of it to get it all the way back up! Thanks for watching the videos!

[@Lear356045]

@@thefishstalker7640 I tried to repositionned my shift shaft to fwd, then I push to the detent the throttle lever. I put the lower unit in place and it fits as a glove. Run it gear changed perfectly :)

[@robertschwark8]

How you like your tracker?

[@thefishstalker7640]

Been excellent I've ran it for 3 years , 400hrs now

[@robertschwark8]

@@thefishstalker7640 yeah I have the 2016 WT with the same motor and I love it but I got rid of the 3x Lawrence and put 2 7" on also a 80 lb i-pilot

[@apoloteam79]

Este tipo tiene de mecánico lo que yo de cura, un mínimo de cuidado a la hora de aflojar y manipular, desde luego mi motor no le dejaría tocarlo... Realmente parece un cambia piezas con muy poco tacto.

[@razorbck5112]

Where did you get the kit?

[@thefishstalker7640]

www.partsvu.com/pv-home-page-001?gclid=CjwKCAjwj6SEBhAOEiwAvFRuKJRi02dyKXU_5WRZYS7XtxSnmP19blOaVJzTYnHJXIc_jItZESeXfBoCv5QQAvD_BwE

[@thefishstalker7640]

Partsvu has been the best already been through 3 100 he kits since the video! Lol, I definitely need to get a kicker

[@FB-sp5ex]

Looks like if you had an old tire , be perfect to set that lower unit in🤷🏼‍♂️

[@francois5254]

how adjust idl please because is trun to fast

[@jquill11]

i wish my wife would help me! LOL i get all kinds of grief when i ask for a hand

[@thefishstalker7640]

Lol, yea I definitely appreciate it!! Thanks for watching the video

[@Quackk_Addict]

man the only problem I had was trying to align the splines for the lower unit and now the shift shaft is locked and wont even rotate clockwise or counter clockwise... anyone have this happen to them? looks like the shop it is, Ive been trying for the last couple of hours and cant seem to get the shift shaft to even budge.. im defeated

[@thefishstalker7640]

I still do them all the time, are you near the Sacramento area?

[@Quackk_Addict]

@@thefishstalker7640 yes im like a hour away, I live in Oakley

[@daletilley4083]

Wish you would of put website of purchase and part numbers..

[@thefishstalker7640]

We are working on Thefishstalker.com, I'm trying to learn how to affiliate and ad links , I'm not much of a computer guy, soon I'll get it down tho

[@rogerconway4925]

My bottom drive won't go on to my 2016 Mercury 115hp SeaPro outboard engine

[@thefishstalker7640]

I replaced it again since this video and was tougher to get it back up all the way also ,had to keep shaking it up and finally went in! Thanks for watching the video, by the way I always leave it in gear and turn the prop while shaking it up

[@sergeantotanks3142]

Where did you get the 300 hour kit?

[@thefishstalker7640]

www.partsvu.com/pv-home-page-001?gclid=CjwKCAjwj6SEBhAOEiwAvFRuKJRi02dyKXU_5WRZYS7XtxSnmP19blOaVJzTYnHJXIc_jItZESeXfBoCv5QQAvD_BwE

[@bornonfire452]

Hilarious been there what a pain in the u No what especially if you're doing it by yourself.

[@thefishstalker7640]

Yea nor as bad as the old ones , lol, just did the 600hr 300 + hrs again in a year lol

[@joehollah6911]

Could the cameraman get any further away from the video?

[@thefishstalker7640]

Been awhile , done another impeller since I'll review the camera distance so I know for future recording, thanks for the comment

[@slipf18bustedflush42]

Good information. Poor video and tool prep.

[@francois5254]

your video difuse inverse your impeller .....