Id say its a waste of time. The impacts over time will end up cracking the plastic/teflon washer and it will likely dissapear. Some marine grade never seize will help. Also some say to leave the prop loose and don't tighten it up to the bushing.
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| locked prop and logs/stumps http://mudmotortalk.com/mmt_v2/viewtopic.php?f=6&t=13709 |
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| Author: | marsh maniac [ Thu Nov 11, 2010 7:26 pm ] |
| Post subject: | locked prop and logs/stumps |
a couple of weekends ago i hit quite a few logs/stumps with my 25 gdlt and it tightened my prop down onto the rear jam nut. I heated the hub til red, and still couldn't get the prop to seperate from teh brass washer and the jam nut while using the prop removal tool from gd. I tried to turn the jam nut with a cressant and a cheater bar after using heat, and couldn't move it (it was backed to the end of the threads). I ended up having to cut the nut with the grinder until i was able to pry it away from the washer/prop. Anyway it got me to thinking about how to prevent the prop from locking down on the jam nut and brass washer when running stumps. I'm going to put a nylon or teflon washer between the brass washer and the prop to give the prop a little more cushion to keep it from locking down. Think it will work, or will i be wasting my time? later, mm |
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| Author: | JpEater [ Thu Nov 11, 2010 7:44 pm ] |
| Post subject: | Re: locked prop and logs/stumps |
Id say its a waste of time. The impacts over time will end up cracking the plastic/teflon washer and it will likely dissapear. Some marine grade never seize will help. Also some say to leave the prop loose and don't tighten it up to the bushing.
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| Author: | kibb [ Thu Nov 11, 2010 8:09 pm ] |
| Post subject: | Re: locked prop and logs/stumps |
Tighten the prop tight after putting nickel anti-seize. LPS makes some. Its not cheap but a little goes a long way. Make a habit of breaking it loose every 25 hrs or so and freshening it up. Get a 3 ft long piece of 3/16 flatbar and drill a 3/4" hole in it about 3" from the end to use as a prop removal tool. Ive never had a stuck prop again since using this method. I doubt its different on your motor but, on my 27 the prop actually thrusts into the top nut when running or if you hit something. |
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| Author: | marsh maniac [ Thu Nov 11, 2010 8:22 pm ] |
| Post subject: | Re: locked prop and logs/stumps |
roger that. the prop was floating before my trip through the timber (as i launched the boat i heard the "clank" sound from the prop spinning down the shaft ). i usually take the prop off once every few months to reapply nickle anti-seize and i leave a little slack in the prop to "float". Today I bent a 12" cressant wrench that i used to stick in the u-joint while applying pressure with gd's prop removal tool and still couldn't budge it. after that, i removed the shaft and put it in a vise. the prop wasn't stuck on the shaft. It was just locked onto the nut behind the prop. The prop spun freely as soon as i relieved the pressure from the nut. kibb - are you saying to tighten the prop against the nut behind the prop so that it doesn't float? |
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| Author: | kibb [ Thu Nov 11, 2010 9:32 pm ] |
| Post subject: | Re: locked prop and logs/stumps |
The forward jam nut. It should be forward jam nut, washer, tighten prop, washer, rear jam nut, lock washer, and nylock. Go devil suggests letting prop to float but when I spoke to them they said it was cause they believe it helps the prop not freeze on the shaft. That may be but I find it works better the way I explained. Just make sure its part of your preventative maintenance. |
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