Driveshaft bearing hot

[95sportster]

I just replaced the motor in my sportster. I got it yesterday and spent this morning putting it back in the boat. I hooked up everything and double checked all hoses and threw in a fresh battery and it started right up on the trailer and on the hose. (It sounds and starts sooooo much better than before). As I was checking everything while its running I noticed the driveshaft bearing is very hot to the touch after only a few seconds. I let it cool down and started it back up and the same result. I know this is cooled by the water when its in water but should it get so hot after about 10 seconds of running?? My first guess was the alignment since I did not use an alignment tool but I used the same motor mounts and shims in the same locations and it visually appears to be aligned. Any other ideas or is this simply supposed to be hot when not in water?

 

[95sportster]

Not sure if that was a stupid question or if there is another reason for no responses. But, I put it in the water and it runs fine without getting super hot. Guess its normal.

 

[ocod]

Not sure if that was a stupid question or if there is another reason for no responses. But, I put it in the water and it runs fine without getting super hot. Guess its normal.

happens a lot
is there grease in the carrier?when was the last time bearings were changed or inspected?
Otherwise you risk failure. make sure to keep eye on it

 

[95sportster]

Yeah theres grease in it to where it pushes the boot away. Its brand new. I replaced it 2 months ago when I rebuilt my pump, and I just rebuilt the motor as well so everything is brand spanking new.

 

[Dr Honda]

It shouldn't be getting very hot. A little... sure, but not hot enough for it to burn you. If it is getting that hot... then you may get a bearing failure.

I would double check that everything is OK in the seal pack. The reason seadoo got rid of that style seal was becasue, if the bearing seized to the drive shaft... it would rip the boot (or the fitting out of the hull) and you would take on water, fast enough to sink before you knew what was going on. The new style carbon seal isnt' the greatest... but it's dam near impossible for it to fail.

Oh... sorry we missed the post.

 

[95sportster]

So it shouldnt be getting that hot even out of water on the hose? I know the hose doesnt cool it

 

[Dr Honda]

It will get warm... but not hot enough to cause you to think something is wrong. In the water... it shouldn't get warm at all.