How is this mechanically possible?

[dbracela]

I don't have any pictures of this yet, but I will. You may not want to see it as it may make you barf... I did. I finished installing the right side pump this morning, smiled, picked up my stool and moved it over to the left pump and noticed the top bolt from the pump cone missing and that the cone was hanging there loosely. Well I barfed a little right then, and pulled the other two bolts, and emptied the rest of my breakfast. Not a drop of oil left of course. What a mess, the inside of the cone was melted beyond recognition. The impeller shaft was rusted and had moved into the pump by at least two inches. The impeller was inside the tunnel. It had cut the hell out of the gel-kote right down to the glass. The impeller shaft was so far forward and could not be pushed back so that I could get it into a vise to pull the impeller and start the rebuild. The impeller was sticking so far out above the wear ring I was shocked. It spun freely to boot. This was the side that never gave me any problems!!

I called around and found a used pump assembly and cone, complete minus the impeller. After repairing the tunnel and installing the new drive shaft seals, new wear ring, installed the impeller, and went to put it into the boat. Now, I had expected to fail, I mean the drive shaft must have been pushed back and bent (I checked, it wasn't) or the engine must have been pushed back, or something. I mean, how can that impeller shaft and the impeller itself be two inches too far forward without anything moving? Sorry if I am confusing, it's 0100 hrs and I haven't eaten since the puking. It all lined up perfectly and went back together easy as pie. So I don't get it.

So, Any ideas? It's all fixed and put back together and ready for tomorrow's water test so I don't need help with the repair anymore, just can't figure this one out.

And ya, I had the pump oil changed a month ago at Lockheart's. Guess they don't believe in lock-tite, and they wanted 1300 bucks to fix it.

PS: The wife and her buds were the last ones to use the boat. I blame them.

 

[LouDoo]

The big problem is, you really need to go see a Doctor and get the barfing under control. If this upsets you this that much maybe you should find another hobby.

So I think what you're saying is the drive shaft came loose at the pump end and did some damage to the tunnel of your boat. I've never seen one but thinking about it if a plastic pump overheated and came apart there wouldn't be anything to hold the drive shaft straight and could fly around and cause damage. Did you remove the drive shaft roll in on a flat surface? Was the drive shaft bent?

This is another reason to do the work yourself, not only does it save money, but also you will know the job is done right.

Lou

 

[Dr Honda]

This is another reason to do the work yourself, not only does it save money, but also you will know the job is done right.

Lou

ABSOLUTELY !!!!


Well... the oil came out... the bearings got hot... the pump melted, and everything pushed forward because the thrust of the impeller. I'm not sure how it moved 2", since there should be less than an inch of "Gap" in the drivshaft ends... even with the bumpers out.

Regardless... clean it up, and put it back together.

 

[dbracela]

Sorry, was trying to be funny after a crappy day. The shaft hadn't come loose, it was still in the impeller. The impeller was what cut up the tunnel. Everything was together and the wife said she drove it back to the launch at full throttle with no change in sound or speed. I rolled it on the counter and it wasn't bent. I'm off to the lake to test it. Have a nice day and thanks.

Doc, I get the why, I just didn't get the how it moved so far, thanks, have a good day, thanks for all your help.