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how tight sound the prop be |
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crazy4boats 
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Joined: May-13-2007 Location: United States Status: Offline Points: 3 |
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 Topic: how tight sound the prop bePosted: May-13-2007 at 7:53pm |
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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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jdkenyon
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Joined: March-16-2007 Location: Twin Falls, ID Status: Offline Points: 111 |
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Posted: May-13-2007 at 8:58pm |
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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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crazy4boats
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Posted: May-14-2007 at 8:31pm |
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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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Tim D
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Joined: August-23-2004 Location: United States Status: Offline Points: 2641 |
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Posted: May-14-2007 at 10:22pm |
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When you spin the prop in the water, it will work its way up the tappered shaft and get stuck.
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Tim D
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GottaSki
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Joined: April-21-2005 Location: NE CT Status: Offline Points: 3365 |
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Posted: May-15-2007 at 9:31am |
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Are you trying to put a 1 1/8 prop on a 1" shaft?
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"There is nothing, absolutely nothing, half so much worthwhile as messing around with boats...simply messing."
River Rat to Mole |
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8122pbrainard
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Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Posted: May-15-2007 at 11:53am |
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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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8122pbrainard
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Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Posted: May-15-2007 at 2:20pm |
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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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TRBenj
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Joined: June-29-2005 Location: NWCT Status: Offline Points: 21194 |
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Posted: May-15-2007 at 2:43pm |
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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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8122pbrainard
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Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Posted: May-15-2007 at 7:20pm |
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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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crazy4boats
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Posted: May-15-2007 at 9:46pm |
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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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jdkenyon
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Joined: March-16-2007 Location: Twin Falls, ID Status: Offline Points: 111 |
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Posted: May-15-2007 at 11:25pm |
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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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8122pbrainard
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Posted: May-16-2007 at 4:54am |
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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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Tim D wrote: