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how tight sound the prop be

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8122pbrainard View Drop Down
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    Posted: May-16-2007 at 4:54am
Originally posted by jdkenyon jdkenyon wrote:

Maybe you can back the nut off all the way and let it start on a different set of threads. This might rotate it around enough to align for your cotter key.


JD, The only way he's going to find "a different set of threads" is on another boat! There is only a single thread on the shaft.

Crazy, Why do you feel you need to tighten the nut a full turn? The nut is only to snug up the taper. The nut does not really hold the prop on. The taper does and this is why a puller is required to remove the prop. A good example of a tapered means of holding 2 pieces together is a drill bit chuck. The chuck on a electic drill or drill press is held on with the taper ONLY!


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Post Options Post Options   Thanks (0) Thanks(0)   Quote jdkenyon Quote  Post ReplyReply Direct Link To This Post Posted: May-15-2007 at 11:25pm
Maybe you can back the nut off all the way and let it start on a different set of threads. This might rotate it around enough to align for your cotter key.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote crazy4boats Quote  Post ReplyReply Direct Link To This Post Posted: May-15-2007 at 9:46pm
THE PROP FITS ALL THE WAY UP I JUST WISH I COULD GET A FULL TURN ON THE NUT THANKS FOR THE HELP DOES THIS SITE HAVE PIC OF OUR BOATS????NEW TO THE SITE
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 8122pbrainard Quote  Post ReplyReply Direct Link To This Post Posted: May-15-2007 at 7:20pm
Originally posted by TRBenj TRBenj wrote:

Originally posted by 8122pbrainard 8122pbrainard wrote:

The 2000 would have the down angle reduction trans with a 1 1/8" shaft!



The '90 most likely has the down angle 1.23 trans as well. Assuming thats the case, the 90 can use any prop the '00 196 can, as both use 1" shafts- only the V-drives use the 1-1/8".



Well, once again I've been educated on the newer boats. Tim, Thanks for filling me in. Why do only the V drives have the 1 1/8" shaft? As a mechanical engineer, it was just logical for me to assume that the reduction trans's had the larger shaft. With the reduction, torque is multiplied by the ratio so it can swing a larger prop and this torque needs to be transmitted through the shaft.


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Post Options Post Options   Thanks (0) Thanks(0)   Quote TRBenj Quote  Post ReplyReply Direct Link To This Post Posted: May-15-2007 at 2:43pm
Originally posted by 8122pbrainard 8122pbrainard wrote:

The 2000 would have the down angle reduction trans with a 1 1/8" shaft!



The '90 most likely has the down angle 1.23 trans as well. Assuming thats the case, the 90 can use any prop the '00 196 can, as both use 1" shafts- only the V-drives use the 1-1/8".
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 8122pbrainard Quote  Post ReplyReply Direct Link To This Post Posted: May-15-2007 at 2:20pm
Originally posted by GottaSki GottaSki wrote:

Are you trying to put a 1 1/8 prop on a 1" shaft?


Tom, That's so basic I wouldn't have even thought of it! The 2000 would have the down angle reduction trans with a 1 1/8" shaft!



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Post Options Post Options   Thanks (0) Thanks(0)   Quote 8122pbrainard Quote  Post ReplyReply Direct Link To This Post Posted: May-15-2007 at 11:53am
Originally posted by Tim D Tim D wrote:

When you spin the prop in the water, it will work its way up the tappered shaft and get stuck.


I don't feel that letting the thrust of the prop tighten itself is a sound method of prop installation. The prop should fit the taper and the nut will snug it up.


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Post Options Post Options   Thanks (0) Thanks(0)   Quote GottaSki Quote  Post ReplyReply Direct Link To This Post Posted: May-15-2007 at 9:31am
Are you trying to put a 1 1/8 prop on a 1" shaft?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tim D Quote  Post ReplyReply Direct Link To This Post Posted: May-14-2007 at 10:22pm
When you spin the prop in the water, it will work its way up the tappered shaft and get stuck.
Tim D
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Post Options Post Options   Thanks (0) Thanks(0)   Quote crazy4boats Quote  Post ReplyReply Direct Link To This Post Posted: May-14-2007 at 8:31pm
THE PROP GOES ON VERY EASY AND WHEN I PUT THE NUT ON ITS FINGER TIGHT PUT A WRINCH ON IT ONLY TURN 1/2 TURN JUST ABLE TO PUT THE PIN IN
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jdkenyon Quote  Post ReplyReply Direct Link To This Post Posted: May-13-2007 at 8:58pm
Is the key sliding forward and not letting the prop on all the way? Maybe the key is slightly larger then the keyway on the new prop and it needs to be sanded down slightly. Will the prop go all the way on without the key in?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote crazy4boats Quote  Post ReplyReply Direct Link To This Post Posted: May-13-2007 at 7:53pm
I have a 1990 ski natique with 351. I had a 2000 196 and sold it don't like payments had a spare prop put it on my 1990 but cant get it tight it works great on the boat.   
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