Changed impeller on same model just in time- the rubber had imploded into a lot of tiny pieces - so yes it can happen - Water flowed until it didn't. The rubber deteriorates and clogs up the pump resulting in no water flow. All it takes is one tiny piece of debris in the mechanism to sheer off all the rubber blades. Replacing it takes about an hour and is very much worth while doing. Yes they can and do break. but its an easy enough job to replace them and not have this worry. Great video thanks for doing. Not much out there on these model - also good to see yours smokes as much as mine. Also worth checking the tank mesh filter as these often get restricted and make this model work more like a 3HP.
Saw you on jerrie rocks channel . I love fishing shows I am living in Mohave desert on gold mine claim. We are off grid. We travel in the summer cause it’s to hot here. So I am sitting out in desert alone watching you work on your motor.
Thanks for your prompt reply. I am not implying criticism of your excellent video just making an observation that this particular stage of re-assembly is pretty important. As I tried so many ways to align the drive shaft, gear control and water pipe (in my case on a 2.5hp which is even trickier as there is an additional ‘wobbly’ piece of water hose to deal with) I thought that I must be doing something fundamentally wrong as I couldn’t even get the shaft joints to within 2 inches. I decided to watch every video I could find. Every one of them showed that the operation was fiddly, but nobody explained WHY. There was no explanation of how to rejoin the lower gear rod, the importance of neutral versus ‘in gear’ in order to gain access to the tightening nut, how to align the water pipe so it mates easily (I had to use a length of wire to suspend it until the last moment when, by luck, it dropped into the right place). As you have probably gathered, I am no mechanic and very much appreciate you passing on your expertise. I probably would not have mentioned this if I had not picked up on somebody else’s comment. 👍
The one thing I have found with outboards is even if they are the same make and model some will just slot back together on the first attempt others you may have to fiddle with for 20 mins or more to get things to line up, If its not going well and your getting stressed take a break that often works, Adding a little grease or oil to the parts can help as sometimes they just hook and don't want to go together. I had a mariner like this years ago an absolute nightmare to get the spline back in. Once you have done the job it gets easier the next time until you get a new engine which has completely changed design of coarse.
The Yamaha 2 stroke 4hp has been great. I had a Yamaha 4 stroke 15 hp before the Honda 4 stroke 10hp. The Yamaha was heavier and louder than the Honda which made my boat lift to much but ran fine so I changed to the Honda 10hp. I am half a knot slower with the honda but have a High trust prop so get more power against tide. This is on a displacement hull. I have only ever used 1 Johnson in the past it was very old it ran fine till it broke down and a mechanic could not fix it.
Great video. That really helped.Without it I would not have been able to put it back together.I am little confused though all the service part kits that I saw seem to have a green gasket included that goes between the pump housing and the plate. But my engine didn't have a gasket just like yours. AlsoI saw some comments on here about the gear lever stuck. I had the same problem. Just heated it up with a torch , little grease and works like new.
Sorry made a mistake. That green gasket was on there I just didn't see it.Took it all off and put it back on. To get the lower unit back in place can be a bitch though.
Great video - helped me with doing the impeller on a Yama 3hp. When I reassembled the the leg unit I had some trouble with the gear linkage. It seems the linkage is just touching the driveshaft, and I don't want to start it as I have a feeling something is not right, I took it off and installed it again but still seems very close to the shaft. Have you ever encountered this before? Thanks in advance!
@@Trojwaterman Thats ok just thought I would ask. Not sure really maybe I have over tightened that bolt causing the whole linkage to move, but I was being very careful when I re attached the linkage. I'll pull it off and have another look I can't see how it is so close, thanks for your help tho!
Thanks for the vid but at about 10:20 when you wind the prop so that the impeller "curls" into place, you wind it anti clockwise.... but I thought it should turn the other way... the impeller should turn clockwise and to do that the prop should turn clockwise too. Is that right or wrong or does it not matter?
Nice video i liked it, very interesting! Love your channel! ; - ) Remember Friend, don't comment directly what are you doing, evil people might detect it... Mask your intents, better write nothing in comments, or write some text, no couple of words. But don't forget to watch at least 1 minute of video, just help each other! Good luck with your goal, waiting for more nice videos from you!
When replacing the rubber knop/cap is it annything you have to worry about? Because my yamaha 4hp have been in the garqge for 12 years suddebly when i mounted it up on a bracket after 2 days it was oil coming out from the hole. I removed the rubber cap and did not see any cracks ir damage on the rubber cap
people watch these videos to learn how to do things right. If they don't know already and you will never see it come out and it never stays where it will slip back in then it becomes a bloody big issue. Just thought the extra minute may save some real heartache. Hey man. Just a thought@@Trojwaterman
@@waynemckenzie3609 I explain how to change an impeller. I am not here to explain every possible scenario that could go wrong while working on an engine. It has never been a issue with this engine or any of the other engines I have serviced over the years.. Anyone who did run in to such a problem who watched the video would probably figure it out themselves or would just ask.
@@Trojwaterman yeah I've just read the plastic rod expands inside the aluminium housing. I'll have to buy the gasket before stripping it. There is a grease nipple for it so I'll have to remember to keep it lubed. Might as well swap the impeller while I'm at it now you've shown me how to do it!
As somebody said, getting the rig back is impossible. I spent three frustrating hours yesterday. I thought I was going bonkers. This is the fourth vid I have watched which has used ‘selective’ editing.
Nothing selective about the editing just a fisherman performing regular maintenance to the engine its just cut down as people want to see how its done and not sit through long videos. Not sure what problem you are having? but various engines can be frustrating. This particular engine can be fiddly getting the drive shaft to line up and the gear rod at the same time but its never been a big issue.
