Mercury Outboard Water Pump/Impeller Replacement (Inlines)
HTML-код
- Опубликовано: 28 авг 2024
- I know there are a lot of Mercury Water Pump Replacement vids out there. Here is quick spin on how its done @ L6. Impellers should be changed within a max of 2 years due to the design of the impeller. Its cheap insurance to make sure your engine is cooling efficiently and properly. Enjoy.
impeller used:
amzn.to/3EJr1kD
amzn.to/3JyJeFa
great video Mate! Now I can attempt mine with confidence. Many thanks, seeing it actually being done helped!
He seems very young to know these older mercs like he does..Great work!
Thank you. Son
Hey there MerCSon ,Your knowelege on these outboards is second to none , from watching your detailed clips i have gotten all of my motors running , an early 80's 75 hp, a 50 hp early 80's now i'm brave enough to have a go at my pride n joy a 1983 or 84 115 Tower of power . Thanks again for sharing your secret's to the world.
Your welcome my friend.
@@MerCSonL6 so you have some great content and you explain everything very well, i bought a older hydro splash with a merc 80 on it. i have had a hard time entering my serial number to find parts, its 6235408. so my water pump quit working today. i noticed smoke coming out of the pee hole and I'm assuming that is because of the sea foam but also i noticed some sludge coming out of the back of the propeller and when i shifted into reverse and forward it made a weird crunching sound. id like to get a repair manual for my engine and go through it and over haul it but I'm having a hard time finding it with the given serial number. do you have any tips or recommendations? this is my first boat., thanks
This was one of the first videos that help resurrect my motor.
Thanks again!
For me, this is HUGE!!! I own a late 70s 90 hp. Same basic engine. Thank you very much!!!
Thanks for the video. Tearing into my 68 65hp Merc next week for full rebuild.👍
I had to come back to count the bolts, forgot the one under the anode. Also I wanted to pass on something I learned.. Those two nuts that wont come out, are that way because if the housings are stuck together real good, you just keep loosening them and they will then push the lower end free and help separate them... pretty ingenious of the designer to incorporate that...
Yes, I learned that the hard way. I used to use wooden shims back in the day. Thanks for commenting and advice. Son
Really appreciate these videos! Thank you for walking through the steps to change out the impellar.
A way easier method, a little grease inside of the impeller housing, install your impeller onto the driveshaft first, second, slide the housing down until it touches the impeller, then rotate the driveshaft clockwise and push the housing down onto the impeller at the same time. This will bend the blades over and allow them to seat into the housing.
Thats way too easy. :-)
I hit my skag a few days ago on the first day with my rebuilt prop ...very sad day.. i have a parts motor with a skag thats not perfect but better than what i have on the boat now.. I am going to go out to drop the lower unit after watching this video.. thanks for the video.. I will report back after i remove the parts lower unit.
Best video on this subject!
Watching this as I'm about to replace mine.💯
Thank you man I needed to see this video I ve got to put mine back together now thanks again
In the future my friend put the impeller on the shaft and then turn the housing onto with a little vaseline clockwise
I love that sound and My old merc.
When it fired up and growled I got a shit grin on my face!! Any day now for us! :)
Super description of a project we all should do more often. Question,... I've got a 1/8 nylon barbed fitting in the front, inside (just behind the stud) of my lower unit that has a piece of broken off rubber hose on it that seems to go nowhere. Can you enlighten me?
That's for the mph pitot tube my friend
Made it look well, Great vid.. Thankyou
I think you will find if you place the impeller on the drive shaft then place housing on impeller, then while pushing down on housing, turn drive shaft in a clockwise rotation the impeller will seat nicely in the housing
Absolutely. Several on this video have brought that to my attention. I guess I like a challenge. ;-)
Thank you for the clear explanation, step by step i will try to replace mine also. Just a question, i'm from Italy...may you share to me a lynk or somewhere on internet where to buy the water pump and the seals? I'm having hard time to find this pieces. Thank you in advance, and sorry for my spelling...always trying to improve
Have a good day!!
Thanks for the video
Great video Sir. Informative and to the point, I like that.
Mr me too. Son
Nice man I'm working on mine all day hahahaha
Thank You, your video helped me reassemble mine
I recently got a boat its a 1976 crestliner with the mercury 950 lighting bolt motor 95 hp. The guy i got it from said its stuck in reverse but watching this video it sounds like its stuck in forward. I tore it all down and its still stuck in gear. Any idea what could be wrong? Linkage everything is good
Sounds like the shift cam is wore out. It's the part that the clutch dog gets pushed into. Have you tried manually putting it on neutral and putting the bearing carrier back in? I have several videos on how to do this. Son
Just done my 40 hp and now it won’t fire. Was running fine before !
You made that look way to easy putting that lower back on. On my i6 1975 150hp the water tube is so short I can't put it in first because I can't see if it's lined up. I'm gonna try again tomorrow. fml
Patience my friend. Son
You are the best bro.
Always grease the splines on your driveshaft. This prevents rust and stripped splines
Could you help me?????
I replaced my water pump today but I still can’t get water to pump out the pee hole😔😔😔😔
I hooked a hose up and it will come out the pee hole but it won’t pump out with it cranked! Idk what to do. It’s not the thermostats either
There's an issue with the impeller. You mentioned t stats so I assume it's a V6. Change the impeller no matter how new it is. I had a similar issue with a new impeller.... changed it and it solved the problem. Son
So it should click in forward and it shouldn't lock in reverse right? It shouldn't lock in forward it should click please give me some in put thanks
I was just giving a 1980 sunrunner with a power power on it and I'm getting ready to do all this work for under $600 that you ordered everything all the electronics water pump that you whole nine yards baby into that way as trustworthy on the water
Cheap insurance my friend. Son
I think my water tube has slipped down. I haven't been able to remate the lower unit. how much of the tube should be visible when it is up in the proper position. Any pics?
Mercson, I put a water pump in and now I can’t get the shifter figured out. I’ve tried everything.79 merc 115. One time it only went in reverse and nothing forward, pulled it again, now only forward, no neutral. I’ve pulled it out 5/6 times and can’t figure it out. I’ve followed your video but it’s not making sense. It’s almost impossible to get the little splines lined up unless I move the shift lever and then it still is totally out of wack. It was fine before I did all this.
Merc, I actually found my problem. My shift cable sheathing is shot. Every time I pushed the control I finally saw it was pushing the inner cable out of the outer sheathing and hardly moving the actual shifter. I taped the hell out of it and it works now. I need new shift and throttle cables . Where the best place to get them.
Just to be clear, does it need to be in forward before separating the lower unit from the main housing?
im having problems getting the lower unit aligned back up. 80hp 2 stroke 4cyl. I lines up the water tube. got the shift gear to connect but not sure if its actually aligned. it wont go any further up. had it in foward position before lower was removed but my daughter got onto the boat and shifted it out of position so now im guessing where it was when we removed the lower. im wondering if its actually in and i just need to get the cranked aligned. i have about 1.5 inch gap left before its all the way up
I would manually put your lower in neutral using a wrench and put your controls in neutral. Line up water tube, shift shaft (may have to wiggle a little), then rotate the flywheel clockwise until its pops into place. Son
When I re connected my lower unit to the motor, it wasn’t switching back into neutral or reverse, it was stuck in forward. Do I need to look out for anything that involves the shift rod or do anything specific before/after in order to allow it to switch gears normally?
Lower needs pulled. Manually shifted into neutral. Make sure shifter is in neutral and reattach. Son
Just curious if you could explain lining up the shift shaft. I replaced water pump, dropped lower unit in forward gear. Went to mate everything back up and it will not go. I rotated the shift shaft splines on the lower thinking maybe they got bumped. But it will not line up. I have a 76 merc 850
That's explained in this video. 3 things need lined up: first water tube, second shift shaft (may have to jiggle a bit to get the splines to mate), then the crank.... which you may have to rotate the flywheel back and forth for it to click into place. Hope this helps! Son
Do you need to put the motor in forward gear before you take it off because i forgot.
Nope. Unless it has a reverse lock. Son
Having to do the same thing to mine
Merc, how do
You line up the little splines?. There’s no way to turn them to line them up?
really good video son... so I gotta question... what is the small rubber tube at the bottom of the midsection for? Something chewed mine in half. It might have dirt in it from some bugs now.
I'm not sure what you are referring to. There is a rubber tube that runs from the lower thru the front of the midsection. That's for your speedo. Is this what you are referring to? Let me know. Son
@@MerCSonL6 Yep, its the speedo line. I guess it doesn't matter since I dont have a speedo.
@@dave-yj9mc the speedo kits are very cheap and easy to install. Not very accurate but some of them are close to the correct mph. Son
@@MerCSonL6 Thanks for the info. Son.
I think you put the vanes in the wrong direction? Arent they supposed to be facing the other way?
Nope.
Well thanks to your video I put it in right. Thank you haha.
What size socket did you use for the anode bolt? My anode has no fin its a flat one for prop clearance. Having trouble getting in there. Thank you. I have the samevmotor as shown in the video. It's a 5/8 socket I understand. Can't get past the hole it's in to get to the bolt. Thanks yall
I believe it's a size 13 metric if my memory serves me well. I once had to drill out the hole the make it larger and it ended up being a hex/star bolt. Son
I’ve clicked the little
shift spline both ways. Which way do I turn it to get it in forward gear?
I picked up a kit today. It has o rings and a screw? Any idea what these are for. I can't find any info about it.
It's an 1985. 90hp
Usually the kits come with a lot of unnecessary. Do not worry about it. Son
What is the right position to drop the lower unit and put it back to replace the water impeller? My mercury is 1987 115 hp some people say drop in neutral put it back in neutral im confuse 🥵😅
Neutral. Son
Why doesn't anybody tell the nut size on the anode I don't seem to be able to find the correct size socket. Oh now I see I need to use the 16 point and not the eight point.
Son, noticed water tube came down with the lower unit. My water tube is damaged on the water pump end and needs to be replaced. How do I remove the damage tube and install a new one? Please explain procedure and what i can expect in fixing this. Thank you very much.
It's just copper tubing that plugs into the water table beneath your powerhead. You can go to lowes and take yours with you and find a matching tube and you're done. Son
@@MerCSonL6 thanks for information. I have the replacement copper tube. Can the tube be installed into the water table without removing the power head (up through the mid section)and how is that done?
@@BJF17401 yes sir
How crucial is that water tube guide piece. For some reason mine don’t have it, is that Maybe the mine is not pushing water thru the tell-tale
It definitely needs it. Son
@@MerCSonL6 thanks a lot man !! It pushed water thru the tell tale for about 5ish mins then it stopped. Right on on thanks again!!
Put the top housing back on the shaft upside down and then twist the new propeller on then take it. Back off. Its eadier this way
I've seen so many contradicting things, this guy says it clicks when you spin it clockwise indicating its in forward gear another guy says you don't want it to click with the lower unit out and that its not good or in gear, right now with the lower unit off I can spin the prop clockwise and counterclockwise no clicks and the drives shaft spins clockwise and counterclockwise respectively, what gear is it in? F,n,or r? Ive been fighting this thing for days and no video has helped to determine prop behavior in relation to gear. Plus I guess my 90 hp mercury doesn't have a reverse cam lock on the selector shaft of the lower unit. Ive read that its for safety to keep the lu from climbing up out of the water which I cant wrap my head around how that little ramp thing has anything to do with that, is this correct??
Method is 100% correct. Clicks I. Forward, silent in neutral, locks in reverse (spins a little in reverse then locks). Son
Why did you not show how you lined up the shift shaft and the spline? I just tried to swap lowers on my 1986 90 Inline with another off of a 115 and can not seem to get the spline to line up. Since I was not sure what was forward and what was reverse, I put it in neutral on the replacement and the same on the controller. Now it's getting dark and I have the lower tied up like a wild dog, hanging about an inch and a half from being installed. I don't really want to take anything out of neutral to make this work. It was all just supposed to slide together, rignt? Lol.
You have to rotate the flywheel and shift shaft to get it to line up. Son
@@MerCSonL6 Yep, I figured that one out, lol. Now I need to get back out there and run the motor, had some performance issues last time out. I have some carb. rebuild kits but trying not to tear the carbs down if I can get by without it. I don't know the history of the motor other than 1200 dollars was spent on a new stator and some other things. My biggest problem here is there is no concrete slab for a clean working area but I will figure it out when the time comes. I'm sure that you have something posted on carb rebuilds, right? Thanks for the help.
@@a.b.5925 absolutely my friend. Son
Ok please help!!?
My water tube wont stay up in the motor and I'm told I need a grommet up there? When I look up all I see is metal. Am I screwed?? Thinking of siliconing it up there in frustration.... told the power head has to come off to service this grommet
Was told it wont get correct water without it but I'm guessing it wasnt there before. No sign of anything up there. Was told it aged and disintegrated. Any advice would help
@@aaronszymanski4949 make sure there's a tight water seal within the white tubing as the brass water tube slides into it. You make have to get creative and a 1/2 inch id 3/8 rubber hose. Son
9:10 mark. How did you align the shift linkage????I’ve been struggling for two days trying to get them aligned but every time I do get them “aligned”, it doesn’t shift. Any tricks or tips on this part????
You have to wiggle the shift shaft. It runs down in front of the mid. You can visibly see it above the lower. Also my try shifting it a lil in each direction to match up the splines. Son
@@MerCSonL6 after me trying for over two days (10 hours accumulated) I got my brother to try. He wiggled it right into place and now it shifts as it should. Thanks. Was really that Simple eh lol. Thank you
@@fdyhdfhy sounds brutal my friend lol.
The plastic part of shifter shaft. Which way does it face?
Knuckles up. Son
Nice video. I have 81' 115hp. I can order just impeller or water pump kit. What do you look for to go with the kit? Bad rubber, etc.?
If your gaskets are good then yes, you can just order the impeller. Look for the veins on the impeller. If they are worn get a new one. If it's more than 2 years old get a new one. It's cheap insurance and provides you with peace of mind which is priceless. Son
ok figured out the forward gear position.. i am guessing its important for the reinstall which will be on the motor on my boat.. it will be in forward gear from the removal..... now i am having trouble finding the correct tool to remove the anode... nothing seems to fit.. and you need thin walled sockets.. what is the correct tool ??
argh 12mm seems close but not correct ... what is this mysterious socket -tool ??? for anode removal.
Size 13 metric
@@MerCSonL6 got it out after a bit of looking and thinking ..lol. i used a 12 mm and even at that the head seemed worn... 12 sided affair ..reverse hex ??
I have seen some hex but not many. Most are 13mm. Son
@@MerCSonL6 1971 merc 800 12 point hex... and is really hard to see into the hole to determine what it really was... i never got the lower unit dropped as life got busy.. on my way to the lake in the next hour.. i will put my spare prop on for today.. the skag is completely destroyed on the boat right now.. thats why I am changing the lower unit.. the parts motor skag doesnt look great but its better than whats on the boat right now...sure am bummed out about wrecking my good skag twice in 3 weeks.. we have had no rain all summer and the lake is really really low... pulling out of the marina is challenging at this time.. I go to a lake called Falcon lake in Manitoba Canada if your interested to see hwat it looks like.. google that .. if you go to facebook and type in Faloma marina, Falcon lake Manitoba, you will see tons of pics from me of my purple sidewinder and my buddies 78 Baja with the tower of power.
Questio. Got same motor 115 1987 but when i try to install new throttle cable and shifter throttle cable ok on lengh but shifter cable once installed cannot reach forward. I try everthing but am almost 2 inches longer. Basicaly cannot move into forward. Any idea what could cause that . Seems like a turning plastic piece is to long. Also do u got part number for your cable. Mu boat is 17 feet center console
You need new cables. Son
Well now i got tower of power running, and starting on key but when i want to forward it only gives me throttle toward reverse wont doit in forward? No idea what a heck am doing wrong!
@@HDaDaRa you should disconnect the shift cable and try to shift manually. Rules out faulty cables. If it does not shift your clutch dog is not engaging which is a whole nother bag of issues. I do have a video on it. I'll post it. Son
ruclips.net/video/H9MoSs8aZug/видео.html
Hey Son, I recently got myself a 87 115hp. Prior to imperller replacement with the muffs on water would never come out the tell tail but would out the exhaust nostrils so it is sucking, I've since replaced the impeller and the same result. If the motor is submerged water it does flow properly as it should.
Any ideas?
Many thanks, Matt
Sounds like the muffs are bad or water pressure at the water intake is low. As long as it is pumping water when completely submerged I wouldn't sweat it. Son
Could also be that the piss tube is blocked with a chunk of sand or something. The fitting that comes out the back of the motor is smaller than the water line that connects to it. Had to clean mine out the other day. Had some sand in mine in some shallow water on a sand bar. Just take the hose clamp off and blow it out. Works fine now
Why put it on the forward gear?
Why not? Some of the earlier models had it set up to where you had to have it that way. Power Trim models, not so much. Son
After trying to reinstall my lower unit I can get it close but it stops about half a inch, I have water tube and linkage right I believe because it does shift in f and n. Do I just turn flywheel (very top of engine) and if it doesn't turn prop I know I have it wrong? any tips ?
Shift into forward and turn the flywheel clockwise as if you were looking directly down on it. The prop should rotate if the crank is engaged. It if does then the water tube by default is the only culprit left. Hope this helps. Let me know. Son
slipped right on working great!!@@MerCSonL6
@@MerCSonL6 Hey its been 3 years and my boat didn't get much use. (seasonal) If the water stream is fine should I worry about replacing it or should it be okay?
Thanks for the video. Worked except clicks in neutral. Any ideas?
In foreard gear the prop will click when rotated clockwise. Son
@@MerCSonL6 It does click in forward gear but also clicks in neutral...is that normal?
@@kristiterpstra5277 negative. Your clutch dog is offset. Possible lower rebuild may be on docket... but b4 you proceed with that make sure your shift cable is set correctly. Son
@@MerCSonL6 Thank you! You've been really helpful!
I know this video is older but do you know the part number for the unit by any chance. I have a 1983 90hp and I’m guessing it should be same
Part number of what?
The impeller
@@jamessharp5337 not sure on part numbers because they change depending on where/who you get them from. This is what you need: www.ebay.com/itm/333797098193?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=WqrarUxOTR-&sssrc=2349624&ssuid=c7HxGSEnQjG&var=&widget_ver=artemis&media=COPY
Changing these water pumps are so frustrating lol I dropped the lower unit and I tried to make sure nothing moved. I'm putting it back up with it in neutral. But now I'm getting a clicking sound when I spin the prop? I dropped the lower unit in neutral cause it has power trim. Any ideas?
I dropped it in neutral. With the lower unit removed and if you spin the prop it still clicks? That's throwing me off
Clicking indicates the engine is in forward gear. Drop the lower and be sure both lower and shift cam are in neutral. Son
Can’t you grease it a little bit to slide the impeler into housing and then who I am to teach the OSTA.
Haha, I did grease it. Used gear lube. It's in the vid right b4 my botched first attempt.
I recently rebuilt my water pump because it wasn't pumping water. However once it was done it still wouldn't come out of the tell tale. I checked for blockages but also didn't find any. Any suggestions of what to look at next?
So there are no blockages from the tell tale into the powerhead? I assume you made sure the water tube and water pump are aligned. Are you using muffs? If so try a tank. Lmk
Ok so i just bought a boat with a mercury 115 its and 89 mechanic said need to change out water pump. Is this what he means .. just changing the impeler or does he mean the whole pump . Amateur at this please respond
I would change the impeller and gaskets. Housing does not need changed unless its cracked/damaged or the lower seal is leaking oil. Son
Thanks for the vedio. I'm replacing my impeller but I dont have the short white tube at the bottom of the water tube that I see in your vedio. Is that piece needed? My motor was pumping water without it. I have a mercury tracker pro series 40hp 2 stroke. Thanks
If its not broken don't fix it. Son
So when dropping the lower unit it has to be in forward gear?
Neutral. Depending on if you have power trim. If you do not then forward gear. Son
I have power trim so neutral then. Thanks a lot
I rebuilt my water pump but I am missing the rubber shift shaft part that slips over the shift shaft stub in the lower unit in front of the water pump. Should I replace this part or leave it before bolting the lower back on?
Replace it. I believe it's called the "centrifugal slinger." Not sure if it's detrimental or not but I always install. Son
@@MerCSonL6 the slinger goes on the driveshaft. I have that installed and my waterpump is rebuilt. The part I am missing is black your pointing at it at 2:44.
@@davidbrennan5 that's just a piece to aid in lining up the shift shaft. Not necessary. I apologize, I misread your question. Son
@@MerCSonL6It's ok, thank you for your help. The local Merc dealer let me down, 8 months no parts. I had to re order everything on my own. I should be able to get her running soon enough. I am just waiting on fuel pump parts and floats. I can't find a male fuel hose connector bayonette style that bolts under the fuel pump anywhere yet. I may have to just run a short hose out and use a standard male connector.
@@davidbrennan5 I probably have several. I can list it on Ebay if you like.
Hello, do you need to use the strap in order to get the amount of pressure to slide in? Or should it just slide right in? I aligned everything but the drive shaft seem to not want to go in.
Try rotating the flywheel a little while pushing up on the lower. Note: you have to line up the water tube, drive shaft, and shifter.
Son, i am having troubles getting my lower unit back on. i can get the shift shaft splines to all line up and get nuts started but at a point the nuts all get very tough to tighten and I do not want to crack or break anything. I did have the engine in gear upon removal, I see you do as well but then shift it into neutral at a point where the lower unit is almost on. Any help or advice is always appreciated, thank you.
i got the gear case on, shifts in forward and prop shaft clicks clockwise. when shifted in reverse the prop shaft moves back and forth a bit but no full rotation, i have no idea if that is normal or not
Normal. Son
@@MerCSonL6 thank you son, I appreciate it greatly
So what do I do if when I am testing the linkage I figure out I messed something up. When I put it in neutral the prop continued to click as if in forward.? Any advice would be appreciated....
Shift shaft aligned? Does it click if you put in in reverse (it shouldn't)? Let me know. Son
Im back son. How did you get your water tube to stay up there? Mine has a bunch of slop up there. Maybe Im missing a piece?
Nevermind son... I had to get up in there like a Drunk Proctologist with a flashlight to insert it into the hole. Now I'll see if I can line it up to the lower... :)
Haha. Great 👍
that new impeller should be all greased up before putting it in, grease the vanes and the housing. good video though. have a friend who just got this motor
I did grease it with 2 stroke oil. Probably off camera because I'm a mechanic. Not a video production expert. Son
Hey man Amazon link for the impeller and impeller housing just picked up mariner 115 with this foot
www.ebay.com/itm/172022047276
Ok thank you anyway
does it have to be in forward gear to remove ?? if so how do i get my parts motor into gear ? no harness linkages hooked up
got it into forward gear.. but as i am told it makes no difference for the removal.. its all about lining up to reinstall..must be in forward.
Los the video but i can’t seam to get the drive and neutral right nothing wants to work now
Do you have an estimate how much would it cost to completley rebuild my 1150 how much did it cost you in parts and hours???
With new pistons, rings, boring, and potentially a new crank? If you pay a professional I'm sure its going to be around the 2k range at least. Son
@@MerCSonL6 nice i thought it would be alot worst. Im dgonna have take to the shop alot cheaper. Buying a new engine is easy 20k 30k
@@jesuslopez9223 lol....
@@jesuslopez9223 the original L6's are the most stable platform of all engines to rebuild. Son
@@MerCSonL6 awesome thanks man.
Hey brother what's the size of that prop
I believe it's a ported stiletto 13 x 15p.
What year is your outboard an do you have any part numbers?
They range from 1966-1988.
MerCSon L6 sorry, i should of been more specific, i dont know the exact year of my outboard, but i do know its an ADI model, if i had to guess it would be early 80s..serial number is in the 7000s but it is an canadian model, having issues to find the right parts to replace my impeller
@@PHATDAN420x I believe this is the impeller your need: www.ebay.com/itm/323984087300
MerCSon L6 thanks alot man!! Your a savour
I need that impeller you have the part number
amzn.to/3JyJeFa
wish you would have shown bottom, gaskets, o rings ect
also any negatives to dropping the lower in neutral?
@@str8wick3d I personally like it in neutral. I know the book says forward. I also did not replace the gaskets or rings in this setting. I do not like disturbing the lower water pump base if it is doing its job and keeping the oil in and water out. Moving it can mess up the seals directly in contact with the drive shaft. Also, if the gaskets are in good condition you do not have to replace them. They function as a spacer not a sealant. I apologize for not being clear in the video. Let me know if you have any more questions. Son
Where are you located?
25401.
Don’t understand?
WV?
@@leomatos1980 yes sir
I need help can you call me
What type of help?: