Small Boat Fishing - Tohatsu 5hp Water Pump Service

[@bobhope5290]

Great demonstration Jer, I am sure it will be of use to lots of people, well done.

[@JerGoes]

Cheers bob

[@bladerider10001]

Fantastic video!! I love your description and video! You did a great job! Very easy to understand exactly what to do!

[@JerGoes]

Thanks, glad you found it useful

[@kennyrubis8610]

Great help...only advice I have is just loosen the shift clamp bolt enough to slide rod through...its a bugger if you take it off and try to assemble it all.

[@csrunner6296]

I appreciate this video, I have the same motor (branded as Nissan) and will be doing the impeller on it this week. Thanks for the walkthrough!

[@Artisanwoodworks73]

Where did you get the impeller?

[@marksturtevant1949]

Thanks for the Video- I have to do this on my 2002 5hp Nissan this winter. Very informative.

[@JerGoes]

Glad it's of use, almost all small outboards are identical, the only problem area I had was getting the drive shaft back in and sliding the gearbox home, but a little patience and it's good. oh and the key pin dropping it :) but that was my own incompetence.

[@aandjwynn]

Thanks! Similar to 5 hp Mercury! Did the trick for me!

[@JerGoes]

4,5 & 6 hp Mercury & Mariners are the same engine, just rebadged Tohastu. The water pump is exactly the same on 4 stroke models too. Glad it helped.

[@aandjwynn]

@@JerGoes The trans linkage is killing me though! Cant sem to get it together? Thought about a different fitting. an ideas? One bolt sucks,

[@JerGoes]

@@aandjwynn with the gearbox off, push the gear linkage down into gearbox (i.e. reverse) set the linkage at the head to reverse, it should be simple enough from there, I tend to cup my finger behind the connector then tighten it on, one thing I had a bit bother with was the linkage pokes through the hole at the top of the leg, getting it into that rubber gromit bit (8:45 in the video). the main problem getting it back together I have is the drive shaft spline not slotting home tho.

[@marlenewynn952]

@@JerGoes Yes discovered that when I finished! Thank you kind sir!

[@OdinTechnicalSolutions]

Thanks a bunch. Very well done, clear and detailed and most importantly to the point. Cudos.

[@JerGoes]

Thanks

[@MCMTB]

I got the same thing, just don’t know what year it is

[@mikesole7616]

Thanks for the video! Helped a lot! Also saved me a good bit of money doing it myself! What a win!

[@JerGoes]

Good the hear, thanks for the comment

[@mlarle]

thanks man now i know what the rubber cover was hiding ,

[@alese3k]

Is the only possibility to flush the cooling system with fresh water, to put the engine in a barrel? I can't find a way to connect the hose because the water intake is directly above the propeller.

[@JerGoes]

Under the engine block is a bolt that is slightly larger than the other ones holding the powerhead in, (I think it's 13mm and M8 thread) there is a special hose pipe attachment available that screws into that hole (search for 'Tohatsu Flushing Attachment') you can pump water through the engine from a regular hose pipe however DO NOT run the engine when doing this, just let the hose and water pressure do the work.

[@smosh91]

great video! got everything back together (after some tries!). Now I have water coming out the tell-tale. BUT - should there be water inside the shaft? I started it up without the side plug/bung and water was shooting out the side. Put the plug in and now it's not shooting out, but is seeping around a the plug a bit. I fear I don't have the elbow in exactly straight. Don't want to disassemble. Thoughts?

[@JerGoes]

The tell tale is only that it's to give you an indication the water is pumping. most of the water goes out with the exhaust inside the leg and into the water (helping to counter the heat from the exhaust)

[@TheYoungBonsaiGuy]

Hello, I know this an old video but on the water pump, do we need to put some liquid gasket on it? Or is it fine just how you did it?

[@JerGoes]

@@TheYoungBonsaiGuy the water pump isn't that high pressure the bolts make a good enough seal, I've never used liquid gasket on an outboard water pump, hope that helps

[@wyoprospector]

Hey the hardest part of the job( aligning the drive and shift rods) you left out. Lol

[@JerGoes]

I didn't think the shift rod was that hard to be honest, the drive shaft oh man that can be a pain in the (*)&^ :D but just being careful to guide it home and slowly rotating the prop or flywheel until it slots home becomes 2nd nature.

[@michaelsantee3648]

You did a good job. But don't show how to line up the driveshaft and the gear shift to line up to the lock bolt. How the hell did you get it in the bloody hole?

[@JerGoes]

The Driveshaft was a bit of a pain, I edited the video because it just wouldn't go home, but a bit twisting the prop(while in gear) and turning fly wheel and it slid home. The Gear selector I put the lever in reverse and push the gear selector rod on the gearbox end down until it clunks into place, getting the rod to go through the front of the leg wasn't too difficult (compared to getting drive shaft back in). if necessary pop the little rubber grommet out where the gear rod goes through and pop it back in once it's all together. The lock nut bit on the gear selector rod, keep it lose-ish until you have the leg on somewhere near then slide it into position (while gear lever and gearbox are still in reverse) position it central in the access hole and tighten it down.

[@jacobcarraway4816]

Is there a part number for this impeller? Thanks!

[@JerGoes]

Tohatsu part number 369-65021-1. hope that helps

[@frankgrassi5364]

Nice job. Thanks for posting. What year is that motor? I have a 1998, waiting for parts to do the same job. 😎

[@JerGoes]

I think mine is a 2003, nothing much changed on these motors over the years, probably paint job and stickers :)

[@pastovasquez1858]

This outboard is the same with mercury 98 2 stroke. They change only name.

[@JerGoes]

Mercury / Mariner are owned by same parent company as Tohatsu, it's the same with the 4 strokes, I have a 6hp 4 stroke Mercury 2008 a friend has a 2009 Mariner both engines are identical to the Tohatsu equivalent under the hood. In fact the lower end is the same on 4 and 2 strokes, same impeller, same process to change them.

[@dmgolub1]

Excellent video. Helped me tremendously. But now I have a problem. I replaced the impeller, used dish soap like you showed, but I can't get the lower unit back in place to bolt it back closed. Everything stops at about 2 inches from fully repositioned. Any ideas? Thanks for the video.

[@JerGoes]

I assume you mean you're having trouble getting the drive shaft back into the spline in the power head, sliding it home? these engines can be a pain in the posterior for this, make sure the gearbox is in reverse (push the selector rod down) use a torch to shine light up into the leg to see where the drive shaft has to go, carefully push it up, at same time make sure the gear selector rod slots through the hole at the top of the leg (8:45 in the video I think). if the lower unit doesn't slot home, turn the prop slowly while trying to push it home, while the gearbox is in reverse gear the driveshaft should rotate as you turn the prop, it can be fiddly but once you get the correct alignment it should slot home easily. alternatively remove the kill tab and slowly rotate the flywheel while trying to slot it home (same effect as rotating prop to move drive shaft).

[@dmgolub1]

@@JerGoes I worked on it for 2 hours. Still can't get the lower unit back in place. Going to try again tomorrow morning when I'm fresh. At least, no bleeding (yet)

[@dmgolub1]

It's the same motor you have, except 4 stroke

[@JerGoes]

@@dmgolub1 :( all I can suggest is what I posted above, look up the leg, to make sure everything is sliding into the right place, make sure the gear linkage rod goes through the hole at top of leg and slowly turn fly wheel or prop while trying to push the gear box home, also I suppose make sure the water pipe is slotting into the pump housing correctly.

[@michaelsantee3648]

Hello, my name is Michael. I have a Nissan NS5B , I have been trying to get the lower unit back in place. I have done this 6 times. I made sure that the impeller was in the right direction. Turned the driveshaft clockwise, blades tips are the counterclockwise. And I still don't get any water from the tail tell tube. I am very frustrated. Any ideas?

[@Burritosarebetterthantacos]

Good video...cant get mine to shift back into neutral or forward after tightening🤯

[@JerGoes]

The starting point for getting the gear linkage back in line is to put the selector lever in reverse, Then loosen off the connector bolt under the rubber grommet, Then push down the selector rod as shown around 8:40 in the video, I just pushed down on it with a bit of wood until the gearbox clunked into reverse. with both the lever and the gearbox now in reverse tighten the connector grommet and hopefully it should all be working now. Hope that helps.

[@bryge153]

I can't seem to find a part number to the complete impeller and housing kit...much appreciated...

[@JerGoes]

Is it 'PN 369-87322-1' ?

[@bryge153]

@@JerGoes NS5B. 369-1 and then there's a stamped # after 1....do you need that also

[@JerGoes]

​@@bryge153 The two engines Nissan NS5B and Tohatsu M5B (as seen in this video) are the same engine. I've found the pump housing kit listed as 'PN 369-87322-1' or 'Nissan 369873221M' . Hope that's of help.

[@bryge153]

Yes definitely helped...thank you...

[@mundovideo7372]

Great Video!

[@JerGoes]

Thanks

[@urbanitesgarage3299]

I’m in a huge pickle, the little tube where the water actually goes inside of the engine popped off and I cannot figure out how to get it back in I tried for hours

[@JerGoes]

The copper water pipe? If so can't say I've had this problem, but if it is, is the water pipe you've got just a straight piece of copper pipe? or does it have a bent piece at the end? The water pipe usually connects into the engine via a right angle bend which locks into a rubber grommet thing, that top piece of pipe goes into a collar which the lower length (straight pipe) also couples into. If it's the top bent piece the only way is to take the power head off and slot it back in, if it's the lower you 'might' get lucky and get it back in but in all honesty I've never had to do it and I'd imagine it would be a pain in the backside so I'd probably opt to just remove the power head, remove the full water pipe and reassemble / replace it properly. Sorry I don't have a simple answer :( but I've never had to do this before, I'm working largely by memory.

[@lambo-jimboo8249]

job well done there mate

[@JerGoes]

Chears Jim, if you ever trade your metal detectors in for an outboard motor you now know how to change the water pump lol :-)

[@lambo-jimboo8249]

i don't know about that lol

[@silentassasin7220]

Thanks for Vid. Great help

[@mrsammy101010]

Jer like others I am having issues getting the thing back together. My gear rod has a slight bend in it. Is this normal and if so which way should the bend be oriented?

[@JerGoes]

Yes a slight bend is normal, It's been a good while since I opened mine up to check so can't recall of the top of my head which way round the gear selector goes. Things to check as you put it together again 1) the gear lever is in Reverse and the gear rod on the lower unit is pressed all the way in 2) make sure the gear rod goes through the hole at the top of the leg and pokes out at the front top of the leg otherwise it just wont go back together 8:46 in the video. 3) lining the drive shaft and it's splines up can be a pain in the backside, keep rotating the prop (as the gearbox is in gear the shaft will rotate) and keep trying to slide it home, this can be really infuriating and is likely the cause of your problem. It's worth getting a torch and looking up the leg to see where the drive shaft is supposed to go and is going, it can jam to the side of where it's supposed to be slotted. I must admit with my Mercury 4 stroke (same leg) I pulled the safety lanyard and rotated the fly wheel instead of the prop and this worked almost instantly for resembling where the prop rotation I was there 5 minutes with no joy, could be coincidence but, it worked so I mention it anyway.

[@mrsammy101010]

Got it. It was lining the gear rod up with the hole. A couple questions. At first I could not get into forward. After playing with it that now works but it slides into forward too easily. Do I go back to the linkage and just find the sweet spot? Also the grommet that covers the linkage does not seal air tight is this an issue. Any suggested fixes? Thanks the engine is running well with a good discharge of water. You have been a great help.

[@JerGoes]

@@mrsammy101010 Been there and got the T shirt haha The linkage isn't aligned properly, common fault when I made this video I had a similar problem (but obviously to spare my blushes I didn't include that clip ;) ), to fix it, loosen the linkage bolt off (under the access bung/grommet) push the lever on the power head into reverse position and then press the gear rod (as described at 8:46 in the video) fully down then tighten the linkage bolt hopefully this should fix that. And the grommet doesn't need to be air tight (if it ever was) just secure.

[@razaliariffin6431]

Does this motor use engine oils?

[@JerGoes]

It doesn't use engine oil, the lubrication comes from the 2 stroke oil in the fuel. The 4 stroke version of these engines has an identical leg and water pump so the same process is used on all small tohatsu, mercury and mariner engines.

[@Dragane0000]

Helped a lot! Thanks!

[@versediv2mg]

i cant fit the damm drive shaft back in... seems like something is stopping it from goin up tried wiggling the prop but it wont go up... help

[@JerGoes]

Yes I had the exact same problem on both my Mercury 6hp (4 stroke) and this Tohatsu (same leg assembly on both engines). Get a torch and look up the leg to make sure you are sending the drive shaft up correctly. Also make sure the gear selector rod is going through the little grommet / hole at the front of the leg, (see 8:54 into the video, that bit). I edited out the bit where it wouldn't slide home (it was a little bit more annoying than I presented in the video). but literally all I done was make sure the gear rod was in the right place, while the prop was definitely still in reverse rocked the prop back and forth until it slid in (or try turning the prop very slowly), it really was a pain in the arse. When I was doing the Mercury and the same thing happened I pulled the kill cord out (to make sure the engine didn't fire) and moved the flywheel gently (same effect as rocking the prop.

[@versediv2mg]

thanks for quick reply... will try again tomorrow.. when i have done the refill of swearing!!!

[@leedsuk007]

great video...cheers

[@JerGoes]

Thanks :)

[@duncan595]

Great thanks -

[@c8342]

thank you!!

[@типтяр]

Нормальный мотор?

[@damonalagich4524]

Well he earned his pint today and your lot for the week! get a better ratchet and use vaso instead of detergent, ol mate! never mind the farts- its all part of the drama!

[@JerGoes]

Long since consigned that ratchet to the recycle bin in the sky. :)

[@PorkChopExpressBK]

Thank you for this. I have zero experience with marine motors, so that was quite interesting and informative. BTW - "Farty wind noises". Yeah, right. That's like saying "the dog did it". LOL! :P

[@JerGoes]

lol, thanks