drive shaft seized

The drive shaft is seized in my 650 supejet. I have taken the motor out and have taken the 3 bolts out that holds the bearing housing to the hull what else do i have to do to get it apart. And what are my best options for fixing this.

your drive shaft is 2 pieces, the short couple piece and the longer shaft with impellar etc on.
they spline into each other so you can just pull the coupler shaft off if you have undone those 3 bolts.

however its usually the wear ring that swells against the side of the impellar and jams up......so you probably didnt need to take your motor out at all....

thanks for that I will have a look. It didn't take that much time to get the motor out. If it is the wear ring what do i do there replace it??

3 options for wear ring :

1. sand / file/ machine the swell bumps off and hope it doesnt go thru .....

2. buy a new or used replacement.

3. get you existing one reconditioned ......see this post http://www.dalusionfwx.co.nz/forum/viewtopic.php?t=470&highlight=wear ring

replace it as well as the prop
they are both stuffed and worn out

suggest getting hold of 'tofa' through this site... he's got some in his shed (impella and wear ring)

Does that mean that the s/s prop is stuffed as well??

Dont panic just yet! Have you got them apart yet? When they are apart check then and we can go from there.

When the liner swells it get a high point that wears out your prop
You need to re weld your prop to get the clearance right if you want it to be perfect
its all up to you

I will pull the jet unit apart on friday.

Hello. I use a plastic wear ring in my pump housing. It cheep and doesnt sweel due to the dissimaler metals. Also the clearance is very good.

Where do you get a plastic wear ring?

I have had a bad run with those liners , maybe the ones you have in New Zealand are better than the ones we get over here

Sorry cant find the name of the engeernering shop. I got the wear ring of trade me form a eneernering shop down south some were. The trader was deebham I think. may be some one else will no the name of the place.
The plastic wear ring is cheep and does not stuff ya impaller

gp engineering in nelson and the trademe name is debrajane i think and they are also on here under the name of enajarbed.

Got the jet unit off today and yes there was a bulge in the liner. At least my prop looks fine its a skat trac 14/19 any one give me some info on this prop low end or top end I don't know much about props.How do you hold those plastic wear rings in place??

the plastics wear rings you typically buy in a housing and you can buy replacement plastic wear rings.

http://cgi.ebay.com/ebaymotors/Yama...007QQitemZ170227466164QQrdZ1QQsspagenameZWD1V

Those plastic wear rings are fukin shit, it will cavitate like fuck.

That my exprience i have had with them as well

If it has a bulge in the liner then its worn down your prop

put in a new liner and a new prop
you will be happy in the long run

I have not used the ski for a while and every thing was fine befor it was winterised. I think the bulge poped out while it was sitting around. I also don't have alot of cash to spend on a new prop so will get a new wear ring and see how it goes.