Boat Repair Yamaha 250hp outboard waterpump, Impeller replacement
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- čas přidán 4. 07. 2024
- boat repairs, 2008 yamaha 250hp outboard will be similar to many different models. Some projects are easier than others. This one requires very little prior knowledge, no specialized tools. I am not a mechanic, know your limitations and decide for yourself if this is something you could Do yourself.
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Is that a 25inch shaft motor
I think so but not 100% I would check but Idk if boat survived hurricane
@@Kevtheguitarguy sorry to hear that best of luck I hope it did
impeller replacement video and with only 10 second of the most important part. What should i say
Good point
This is an unrealistic video of this task. Removal is easy as shown. However, it's the replacement and putting back together that is the hard part, hardly addressed in this video. The large size impeller must be compressed to fit into the pump well. I was finally able to compress the impeller vanes with a oil filter band wrench. A suitable sized piston ring compressor should also work. It cannot be done by hand in my experience, nor by simply twisting the drive shaft as shown in the video. Getting the lower unit aligned back onto the engine is a nightmare, and not doable by myself. It is a major problem that is not nearly as easy as shown. There are 3 shafts/tubes and the multiple studs that must be lined up all at the same time. After 3 hours attempting to insert the lower unit I gave up with a sore back. The lower unit does weight about 50 pounds. The video also leaves out some steps such as replacing gaskets. I have worked on numerous marine engines over the years, mostly inboards and diesels. This is the worst water impeller replacement job I have ever experienced by a long shot. I'll never attempt it again on this engine, and frankly I am very disappointed in Yamaha for engineering such a difficult task for a part that needs to be routinely replaced. That's my 2 cents...
Sorry you had such a hard time. Don't know how you can say unrealistic , it was my first time replacing an impeller. As you can see in video I just slid the lower unit right in. As far as impeller , yeah I wish I had recorded installing new one but had grease all over my fingers , doing the work in the middle of the boat storage lot. Hopefully you had the right sized part, I don't recall it being that hard to spin it while pressing cap on .
Reason you use a real mechanic is because of Weekend mechanics like you who don't do a complete job hope you're getting lucky
Maybe you could comment on what parts of the job are missing that would make it complete. your comment doesn't help anyone