Shimming the Strut on my 95 Ski Supreme 210 Medalist

[Ski Supreme]

What it is, is I have a 12 inch prop and it is a 1/4 from the bottom of my boat. Acme says this distance should be 1 inch and the prop should be a 13 inch ?????????
So if I shimmed the strut and then realigned the trans and motor would it fix the issue or is this not a good idea.
By the way when I purchased the boat last year it was like this and I burned the gel coat pulling a stranded boater 10 miles to the docks that is how I noticed the issue at hand. LOL

Any ideas?????? Help Please

[chris young]

That sounds really weird. I'm wondering if the prop shaft was replaced with the wrong length (Too short) and then they put a small prop on to make up for it. Do you know if the strut is original?

[Jetlink]

How far in front of your rudder is your prop shaft end?

[Ski Supreme]

I'm not sure and Ski Supreme wont call me back. I got this boat last year. The prop is stamped 13X12 so I assume they had the prop cut down. How far away from the rudder should the prop be?

[Ski Supreme]

How far in front of your rudder is your prop shaft end?

I believe it is at least 5inches.

[Ski Supreme]

I wish there was someone with the same boat I could get pics of to see what it should be.

[Jetlink]

I believe it is at least 5inches.

Not near my boat but having 5 inches spacing between prop and rudder, I'm pretty sure your prop shaft isn't long enough.

[Salty87]

i agree...should be more like 2". just enough to wiggle the prop off the shaft at an odd angle.

[Ski Supreme]

i agree...should be more like 2". just enough to wiggle the prop off the shaft at an odd angle.

Well that would just about do it I think. I do know that my prop is almost up against the strut. I am going to measure tomorrow and I will post the results. Thank you guys for the help. And dont forget to tune in tomorrow. LOL

[Ski Supreme]

Here are the pics I took today. It looks like I have lots of room. What do you guys think. Should I get a new shaft?????????

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[Ski Supreme]

Ok I talked to the Fineline guy Mike Sanchez. He said they made a 210 Medalist in 1999 and those measurements were a 13x13 prop, 46 3/4 x 1 1/8 shaft. Mine is stamped 13x12 1/2 and my shaft is stamped 48.1 and is 1 inch. But measuring from the center of the shaft to blade tip is 6 inches this prop has been cut down. So what changed that is the question and how do I fix it?

Here are some pics
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[bens250ex]

Looks like someone could have put the wrong prop on? Maybe find a factory prop and see where everything lines up. If you need a shaft contact skidim.com they have a guy who builds whatever length you need. I had to buy a longer shaft for my boat due too installing the engine to far forward after my stringer job. I can't remember the distance that you are suppose to maintaine between the prop and the shaft. If I was on my computer I would pull it up. Try searching google for correct distance between prop and strut on a inboard. It looks like the prop could be wrong though.

[Ski Supreme]

I have been told the distence from the rear of the strut to the prop should be no more than the diameter of the shaft and no less than 1/2 in. If this is true then the shaft length I have is right.

[bens250ex]

Yes that is it I remember now, might look at a different prop though. I'm not a expert with props so I really don't know what could help you.

[Salty87]

this is what mine looks like

http://i8.photobucket.com/albums/a10/salty87/photo15_zps6bf8964c.jpg

[avlrecycling]

I would say that prop is way to far forward. Here is a link to a good photo of a Moomba.

http://www.moomba.com/msgboard/showthread.php?17988-Prop-Rudder-Clearance-Help/page2

[Ski Supreme]

Now that looks better. I agree something is wrong with mine. Right now the Fineline guy is working with me on this and hopefully soon we will get it figured out. I am thinking that the prop, shaft and strut got damaged and was replaced (strut) with the wrong one. jmo

[RAS1233]

I wish there was someone with the same boat I could get pics of to see what it should be.

I am new to yhis forum and wil help if I can.

[Ski Supreme]

RAS that would be great. I will PM you. Maybe I can call you and get more info on your strut, shaft and prop.