How To Replace A Water Pump on A Mercury 2 Stroke 6.0hp 8.0hp 9.9hp 15hp 1986 - 2006 Outboard Motor

[@gregkobylarz8648]

Finally ! A professional Mercury mechanic takes us behind the scenes and shows the public the correct way to do a water pump!

[@danielrobert7181]

If I may, upon disassembly, counting those turns on the stepped guide at the base of the shifting rod is a lot more accurate if you count while screwing the guide IN until it bottoms. Upon reassembly, screw the guide all the way, then unscrew it the number of turns you counted at disassembly. Regards !

[@scottmcm7165]

The only complete housing and impeller video. Great job Thanks

[@stephenwaller3118]

I really want to thank you for taking the time to make this video. I love to work on my own motor but I'll admit the service manual alone leaves a lot of steps out. You did a great job of walking each step through making the job so understandable and easy even for a guy like me with 10 thumbs. You also saved me a lot of money and time off the water by not having to take the motor to the dealer for repair. I want to thank you again.

[@John-of5sh]

Been almost 2 years since you did this video and and it's just as informative as the day you made it. THANK YOU SIR for taking time to share your knowledge and expertise. I feel confident by following your video I will be able to swap my parts out and have everything come out perfect. Little tips like counting the threads when putting the shifting rod back together can make all the difference in the world between success and failure. You explained things in a way that I didn't feel like I was being talked down to which also goes a very long ways. Once again, Thank You Sir!

[@2dsbuck2]

Thanks for a well prepared video. One of the best tutorial on replacing a water pump I've viewed.

[@daviddentalswisstips4753]

Hi Martin. Watching u from France. I just bought a 9.9 mercury 2strokes, and your video just helped me a lot for my first steps with my new engine. Thanks a lot.

[@Trevwhitesailing]

You are an excellent instructor. I am sure you saved me from breaking something expensive, certainly saved me time

[@darrenmahlke7640]

The best video I've ever watched perfect now I can go do the job

[@raythomas2628]

Thank you for taking your time and doing that slowly. And for getting the crayons out for a dummy like me. Lol. You’ve done a very good job my friend….. I bought a motor from a guy that was not pumping water. He said he put a new water pump in it. I bought the kit that you recommended, and put it in. It’s pumps water like a water hose…. God bless you my friend

[@martinbeville7295]

FINALLY.. somebody doing videos on these great little motors, please keep them comming, I have worked on several of them, always something someone else does different helps, please keep the videos comming, thank you..

[@todtc]

Excellent video…thank you. Took mine apart with numerous photos but was completely unprepared to reassemble. Your video saved me. Thanks again.

[@ademirandrade381]

Great Buddy...Very usefull informatons..Thanks a lot...Huggs from Brazil...

[@markmummert2779]

Getting ready to do this tomorrow and feeling much more confident now, thanks for a great tutorial.

[@mattc.310]

I'm glad I found your video. I've got mine apart and the shift rod just came out with the plastic manifold. Thought I broke something. Mine has a two piece shift rod with a coupler and lock nut about five inches from the entry to the lower unit. Glad it just comes out and will go back in with not too much trouble. Also great to see which way the little angled piece at the end of the rod goes. Saving the video for later if I get stuck. Thanks for taking the time to produce a very informative and helpful video.

[@owenwsmith]

Just changed out a 15hp Mercury- Very helpful especially the reassembly I forgot some things lol thanks for the help

[@TubeTerryH]

I learned a lot that I didn't know while watching this video. Excellent instruction. Thanks,

[@robguilfoil2470]

Excellent exponation of the water pump replacement procedure.

[@Guitarluvar84]

Clear and very watchable with a great level of knowledge.

[@sailingelysian8744]

It's nice watching a pro. Thanks for the tips!

[@joelbebermeyer985]

Life saver gonna tackle this job tomorrow on my 2002 15horse!

[@christoperun4380]

Best video for this job on KZbin TY

[@johnstafford3398]

Thanks for the help brother...great video

[@muhibcomertel1281]

Bir öğretmen gibi anlatınız çok beğendim teşekkürler 🙂

[@TR4zest]

Very good explanation and demonstration. Thanks!

[@darrenmahlke7640]

Thanks Daniel 😮 I'm way past that stage now my problem now is that I cant seem to get it into forward gear correctly. I've removed the lower unit again because I thought the flywheel was preventing me from getting into forward but now that I have it apart again it's still the same , I cant even remember now which way the end of the shift rod was facing when I took it apart or does this only face the same way as in the video

[@82HEADCASE]

Another quality video Martin👍

[@ЕгенийТарасов]

Спасибо огромное ДРУГ! Очень подробно и доступно! God Grant You Good Health!With the best wishes from Kaliningrad!MERCURY 10 XR

[@marcos.buchin3910]

thanks a lot from Rosario, Argentina. Your really help me!

[@abebowling146]

agreed very informative, do you not have to torque the cover on the pump when replacing?

[@idriszerenay3173]

Gerçek bir tamir teşekkürler. Bu motorun pistonu degişirmi? Benim motor bitmiş diyor burdaki ustalar

[@mikemurphy3887]

Gonna tackle this job tomorrow, thanks! I do have another problem though. I have a lot of play between the engine and the motor mounting bracket, at full throttle the motor shakes all over, and ideas how to fix this?

[@bl8zn]

Thank you so much for the video. I will follow it step by step when i do mine. In the service manual i see it says to add sealant but you did not. Is it necessary and where does the sealant go?

[@Wildwwill]

Great detailed instructional video.

[@patwil4296]

luv your vids man. Now I have the winter to put them into action. I have a 1997 merc 6hp 2 stroke that was fine but now the fuel bulb won't get hard and I hear air coming from somewhere around the fuel pump when I squeeze the bulb. Any ideas?

[@RickPeterson-k8d]

The mercury diagram indicates using an RTV sealant on the lower housing block. Is it necessary? You didn't put any on your waterpump repair? Loved the video. Thanks. Rick

[@sailork3506]

my kit with same p/n had an extra very small flat washer. Perhaps 1/4" diameter. Didn't look metal, was a hard composite material. Dark gray in color. Can't find where it is used anywhere. BTW, its exactly the right size for the bolt that holds the clamp on the shift rod that activates the lever to allow tilt. Thoughts? Second, the manual calls for some silicone at the flat end of the plastic base. Do you do that?

[@yndalecioluna6081]

learned alot from your video can you do a vid on the 6 hp 2 stroke top end removal to change a gasket from housing to power head thanks

[@freddyg5888]

great video. will be replacing this in my 9.9 very soon. just replaced the tiller handle but cannot get it adjusted right.. it goes into forward barely and doesnt go close to wipe open with the cables in.. is there any way you could make a video installing a tiller handle and adjusting the throttle cables?? there isnt any videos of it on youtube it definately would help alot. thanks again

[@brushst59]

Good job explaining it.

[@LiketoOrganize]

Hello, I was wondering what the purpose of the 2 clear gaskets are? You put a clear gasket, then key, then impeller, and then another clear gasket. We lost one of those and was wondering if I can just cut one out of some plastic?

[@ThePepperford]

How about the washer on the top of the gear slector shaft?

[@jackofallmasterof9994]

Thank you for the great video I have acquired a1996 merc 8 hoarse you give the kit part number in the video is will that part number work for my motor thank you

[@kevinclose7047]

hi martin. I have a 98 8hp merc with a gearbox that needs some love. Show us the steps to remove the gear box. I would appreciate the vidio as I can't find anything on these engines. lots of vidios but not on 8hp.you are so clear in your explanation ive allready learnt a lot. cheers. Kevin

[@martinmarine529]

Hope to have a video on it in the future!

[@kevinclose7047]

@@martinmarine529 thanks Martin. how about some tips ie. is the carrier press or screw. have the seals out. whats next. Im DIY in the garage 😊 cheers. Kevin

[@kevinclose7047]

thanks for the fast reply Im in New Zealand

[@MiltonRamirez-wu5yd]

What brand water pump impeller kit did you used for this video? Thanks

[@darrenmahlke7640]

Just realised your last post was 8 months ago daniel and you weren't obliviously answering to me 😂 im in a spin

[@giannanto1003]

Thanks from Italy i have this motor and i happy it!!

[@waynewolfe8817]

I have recently purchased a 16' bass boat with a 9.9hp two stroke, its a 1996 0G354731 sn. I had it running, (it sat for 20 years), after flushing the fuel lines, but the carb was gumed up, and stalled. I rebuilt the carb, (great video from martin Marine), I now have no spark...do you have a diagnostic video on this motor? Also I noticed that this 9.9, and the 15 are nearly identical, can the 9.9 be converted to a fifteen?

[@Orkilini]

Thanks for the video, during the disassembly the underwater part tipped over and leaked oil. I guess I need to top it up now, can anyone tell me what the oil is called or what it is for?

[@Mr-Myautorepair]

my impeller was in the opposite direction, do I put it as it was or as you do? mine is a 2000 mariner

[@BlastYaMaintanice]

Thank you mate wow very professional and interesting information that is eazy and very helpful thanks mate 👍. Keep em up bud

[@georgegogis7958]

Hey Sterling thanks for the great video !!! I put in water pump kit yesterday but my kit had an extra hose you did not mention. I believe it goes in bottom of intake tube. I could not see how to replace it so i left it out. Is this a problem ? The old hose seemed to be ok. Also there was a small paper gasket what is that for?

[@ironoutdoorsman6646]

I just replaced my water pump and impellar.. my engine pisses fine at idle speed but with higher rpms it stops pissing. I never had this problem until after i rplaced everything. Have any thoughts?

[@t.m.i7304]

Awesome detailed video. I subscribed. Keep doing what and how you do it... Subs will grow... From south Africa

[@martinmarine529]

More videos will come out this fall! Just so busy in the shop during the summer it’s hard to come out with new ones. Thanks for subscribing!

[@georgeclawson2083]

Dustin read my comments Rusty clawson

[@MiltonRamirez-wu5yd]

What brand waterpump impeller kit did you use in this video?

[@darrenmahlke7640]

So after watching your video i went at my own and after an hour the job would have been done, but after another hour or 2 I still cant get the shaft to pop into place . Ive turned the flywheel by hand but still no joy .What am I doing wrong

[@druleppek2364]

Hey, I like you videos a lot My mercury 8hp 2 stroke is having problems when I first reinserted the lkwer u it the drive shaft wouldnt spin causing the motor to not be abke to turn over. I then took the lower unit back off and readjusted the driveshaft and put it back in it now turns over but, will not shift out of drive any recommendations as to what may be wrong? Thanks

[@kennydavis9450]

What do you if the metal water pump tube comes off with the lower unit?

[@dylangriner7197]

I just wanted to ask what type of Grease are you using? It's my first time replacing the water impeller on this motor and I wanted to make sure what grease to use

[@albertfuste9315]

Hi Martin, i just got myself a new water pump kit and after replacing it all I realised the water is shooting out around the shaft. The impeller housing has a rubber insert that goes around it but it doesn't seem to seal against the shaft at all. Would you have any recommendation for me?

[@davelambardo6464]

Thank you for a helpful video

[@anandarjoonsingh920]

Good day can you make a video for a 15 hp wiring harness

[@jamespower6038]

Really helpfull clear videos thanks, can you do one on the propshaft seal replacement on a 15hp mariner/Mercury if you ever get the chance , much appreciated

[@jerryjarvis7115]

I have a 1996 15 hp Mercury outboard. Not electric start. I’ve replaced the impeller and thermostat. Still no water flow through tell tale or at thermostat. Any help would be appreciated. Thanks.

[@charlesrowe2149]

I am trying to insert the shaft back up to the hole into the top of the motor. It stops at 3 inches and will not go any further. I’ve even taken a dowel rod measured it put the rod up there so I can move it around in a circle I feel no hole or the shaft to go into and when I turn the flywheel, I can feel nothing, touching the rod what do I do here?

[@USFDSO]

Great video, incredibly helpful. Thank you.

[@chrisgough6535]

This was very helpful, thanks

[@gsjsantos]

Great videos awesome content

[@seananholland3726]

Super helpful, thanks so much, great quality content.

[@MrAquilasteve]

Great Video, Thanks!

[@mattfisher401]

Does the pump housing seal directly to the wear plate? It seems like this would be leaky... The ears where the bolts go on the pump housing seem to be bent down slightly as the chamber of the pump housing protrudes ~1/8"... Seems like water could get between them and mix with the gear oil... Am I missing a big O ring?

[@shawncordeiro]

what about 2004 60hp is the procedure close ?

[@danielellis2108]

I unscrewed the cam on the shift rod how do I tell how many turns to put it back on

[@h300ex2]

I have forward and neutral no reverse I’m sure it’s a easy fix any ideas ?

[@mattfisher401]

Does the water tube guide on top of the pump fit tightly over the tube to the engine? Mine doesn't. Does it need silicone? Is there some kind of adapter between the two that I'm missing?

[@mrsmd4616]

Any tips on removing middle drive shaft housing thingy on a 9.9. Lower unit came off/apart easy. Seriously siezed together.

[@almakeno]

Thanks for the great instructions. When I assembled everything back I couldn’t put the tab of a shaftpin. Ik looks like there is no more a spot to click it on. Any idea what did I do wrong?

[@martinmarine529]

I’m kind of confused about what you’re saying. So if the pin is not lining up you can turn the tiller handle to allow it to line up. If you’re talking about when you go to snap the clip and there’s no spot for it to clip into then you need to remove this rubber cover from the opposite side of the bottom cowling. You will see what looks like a silver nut just push on it and it will move that whole assembly back over.

[@almakeno]

@@martinmarine529 Tiller handle is lined up and I can put a pin in it. My problem is indeed that there is no spot to clip into anymore. I assume that clip is pushed back but can not see how to push it in original position. It looks now flat so no space for the clip to click on. I can’t see the rubber cover and the silver nut. Where exactly is the rubber cover and this silver nut, thats exactly what I can’t find. Thanks in advance.

[@martinmarine529]

@@almakeno find my Facebook page Martin Marine and message me there that way I can send you pictures.

[@WilliamLake-o5r]

Do you ship parts? I have a mercury 6hp outboard 2 stroke. I need lower unit seals and water pump. How much are these parts?

[@fish4stripers]

I just picked up a 1997 9.9hp mercury 2 stroke. Is there any different technique to change it? A differnet kit?

[@JeffBegin-z7x]

Thanks a appreciate the video

[@darrenmahlke7640]

Ok so I've managed to get it to fit back together but now it looks like I've got a bigger problem , when I put it into forward gear the prop still turns and clicks too , reverse seems ok as the prop wont turn and neutral seems ok too😅

[@brod12313]

Dude, no homo...but I love you for these videos!!! 👏

[@georgeclawson2083]

When installing the lower unit I was careful to Check the shift rod alignment between the shift receiver, I inserted the pin clip to keep shift rod in place, the clip would not lock down, I realized that the main shaft the clip attaches to had moved into the housing making the clip unable to make a secure connection, after pulling shaft out the clip worked. Rusty Clawson

[@nullfox955]

I had the same problem

[@darrenmahlke7640]

You the man

[@brp0u12]

Have the same style Mariner 6 hp sticker is worn off is there somewhere else to find numbers for getting parts. Or do you know specifics for the motor you did the video on. Great video it will help alot as my tube for water pump was full of leaves. Thanks

[@brp0u12]

8 hp sorry

[@Hitech82]

What about the little black rubber piece. A round piece 1/2" long with a 1/4" hole in middle. On the outer side of this piece is a little tip. I thought this was a seal from the guide tube to the steel tube that carries the water to the power head

[@JR306]

When I install the impeller housing down on top of the impeller, it turns nice and free until I snug the bolts down. It then becomes impossible to turn by hand. I did this rebuild and the impeller spun around the keyway and was ruined and I feel it’s binding somehow after the housing is tightened down. White spacers are used along with a little grease on assembly. I’m almost at my wits end with this thing.

[@Rscmgw23]

Do you have a video showing how to do the prop seals too?

[@martinmarine529]

I hope to make a video on that in the future. I’ve been busy so lately that most of my videos will probably come out in the off-season.

[@nickstone1905]

Same thing on 4 stroke?

[@miked5866]

What kind of grease do you use?

[@maxratmirov1416]

Thank you so much for this great video! Just one important question. I was not able to find the part 46-4208985 , all my searches came back with number 46-42089A8. Is it the same kit? I am from Canada, maybe it’s just the Canadian version?

[@antoniosidoni5310]

The correct kit numer is 46-42089A5 , that is what Martin says in the video. Ciao from Italy

[@gregoryizquierdo3583]

Does this part number work on 2 stroke as well ? Thank you

[@mot611]

Nice video. My Merc 8hp pumps really slow and overheats. I rebuilt the pump(which was fine) and it's still overheating. I replaced the thermostat. Still overheating. It's a fresh water motor that never sat in the water. I can't imaging what's wrong with it. THX

[@martinmarine529]

Sounds like something may be plugged up somewhere. Try running it without the thermostat I normally don’t recommend that but in this case I would.

[@sammyrothrock6981]

Same thing here exactly I replaced with complete new kit

[@sammyrothrock6981]

Still not reliable pumping

[@dusty9217]

I can’t get that shift rod to pop like that. Mines floppy and feels like it’s not connecting to anything, what gives? Following along, thank you!

[@craftbrewer5401]

Hi Sterling. If changed impeller on my 1989 Mariner 9.9 made I Belgium. Everything went well, but I just can’t get the lower unit back on. My gear shifter goes not move as freely as yours. There seems to be less space and I can’t close the last 2 inches. Is there any other trick to align the shaft apart from what you show? Thanks from Denmark 🇩🇰.

[@craftbrewer5401]

Did it. There are two hole up the leg and I managed to put the shaft in the wrong one.

[@bradenbarnett11]

If the shift rod tab broke is there any replacements anywhere?

[@FishinNotCrippin]

Did you ever find one?

[@FishinNotCrippin]

Mine broke

[@silverlance65]

Thanks very helpful .

[@johnnycruze7846]

You are awesome!

[@michaeljdixon1]

Thank you very much, Mr. Martin. I had the bright ideal a year ago to replace my water pump, I taken it apart ! and now what's next , well as Don Buck said thanks for a well prepared video . Do you carry the water pump kit?

[@martinmarine529]

Yes I have the kits find my martin marine Facebook page. Message me on there

[@GregHastings]

@@martinmarine529 I will order these parts from you, for such a great job on this video. Will find you on FB as well. I have 2004 Merc 15HP 2 stroke, and my pump just failed;-)

[@deanh7190]

Thank you ~ very helpful. Cheers!

[@tubunapui8876]

how to replace the power pad marine 8 outboard