Installing ar230 impeller shaft

[Steve89]

Hi there new to this forum. I have a 2008 Yamaha ar230. I’ve pulled my port jet pump apart to change the impeller after sucking up a rock. I have the new impeller on the shaft and I’m trying to get the shaft back into engine. It will slide all the way in to where it’s seated but something is pushing it back out about 4 inches. It’s like it’s spring loaded. I did see a few loose pieces of silicon sitting in there before I put the shaft in and I fished them out first. I don’t know how the seal works in there is it possible it’s screwed up somehow? I can bolt it together as is but I’m worried that seal is messed up. Has anyone had this happen? I called the local dealers and they were zero help. Thanks for any info!

 

[Beachbummer]

If you measured well, and the shaft is protruding the right length... There's grease and a seal on there.... You can have someone rotate the impeller while you push...

Same advice for other insertions.. lubricate, rotate and jiggle... Should go in eventually.

Maybe also shine a light and confirm all looks good.

 

[FSH 210 Sport]

If you greased the splines like you’re supposed to you’ll create positive pressure in the intermediate shaft, you can hear the air trying to escape sometimes, and it will be hard to push in that last bit and it will push itself back out. In my experience the gap was maybe a 1/2”, I just kept pressure on it and eventually it seated.

The other thing that could have happened when you pulled the pump is the alignment dowels could have either come out partially and or transferred from the transom plate and they’re not seated. Make careful inspection to make sure they’re not cockeyed and use a dead blow hammer and tap them in fully.

 

[Beachbummer]

One thing you can do if you get frustrated because there's no progress after trying for some time.... You can separate the pump into it's basic sections and only insert the pump first, leaving out the nozzle and gate. This makes the piece much lighter and easier to maneuver. Once the pump is in, you can hold on place and bolt on the rest. Just keep an eye on an alignment dowels and pieces, don't misplace any of those.

Best of luck.

 

[sunbyrned]

I’ve not experienced this before with all the times I’ve removed the impeller. I’m wondering though if it would help (or even possible) to remove the intermediate bearing and replace it after the impeller is in place. Disregard if this makes no sense at all, but it’s just a thought I had and wondered if it would work.

 

[Beachbummer]

I don't think that would work as the impeller shaft is inserted into the intermediate bearing shaft. This must be installed from the back of the boat into the intermediate shaft and bearing.

 

[FSH 210 Sport]

Re reading this makes me think the OP, who has not been seen since Wednesday and one hour thirty minutes after posting his quandary which was roughly 15 mins after he joined the site, that he did not even get it started into the intermediate shaft due to his statement about it being 4” out, I should have realized that right away. Anyone who has R&R’d their pumps knows it takes a bit of finesse to get the shaft started and you have to be gentle getting the shaft in as it passes through the two O rings inside the intermediate shaft.

Maybe our wayward OP will re appear and let us know how things turned out.