Model Boat Mayhem

The Shipyard ( Dry Dock ): Builds & Questions => Seaport Tugs => Topic started by: astroscouse on October 23, 2014, 10:24:36 AM

Title: Seaport Tug prop shaft
Post by: astroscouse on October 23, 2014, 10:24:36 AM
Hello, Can someone please tell me how to remove the propeller shaft on my Seaport tug so I can grease it ?

Dick Birtles
Title: Re: Seaport Tug prop shaft
Post by: hmsantrim on October 23, 2014, 12:15:04 PM
 Hi Dirk.
 not really worth the hassle, would be better drilling the shaft tube and fitting an oiler tube.  To get what you want to do
1 unscrew the kort support bracket
2 the black disc tiller arm remove screw from center
3 remove kort
4 undo the screw in the centre of the prop boss and remove prop
5 undo the four screw in the motor mount and remove the whole assembly
6 now the shaft should be able to be removed to the inside of the hull
 removing the kort can be a bit fiddly as the prop is in the way and trying to remove the prop first is also an SOB as then the kort is in the way.  Can be done, but then there will be a lot of f `ing and blinding to put it all back together again.
 
 frank
Title: Re: Seaport Tug prop shaft
Post by: astroscouse on October 23, 2014, 01:09:55 PM
Thank you for your quick reply Frank, I can follow all your instructions but thr problem still remains, how do I undo the brass nut at the prop end of the shaft or do I undo the U/J nylon end, is the U/J screwed on ? are they both R/H threads ? For me to drill an oiling tube I still need to remove the shaft from the prop tube anyway so I do need to remove it. I have alrady stripped everything down anyway so no problem I just can't understand what I need to do to get the propeller shaft out  re. the U/J and brass nut at propeller end ?

Thanks

Dick
Title: Re: Seaport Tug prop shaft
Post by: Martin [Admin] on October 23, 2014, 02:21:34 PM

See also:
http://s203.photobucket.com/user/Stevelum_2007/library/Dickie%20Seaport%20Workboat%20Tugboat%20RC?sort=3&page=1

Careful, Popups!!!   >:-o
Title: Re: Seaport Tug prop shaft
Post by: astroscouse on October 23, 2014, 03:38:42 PM
Martin and Frank, thanks so much for your efforts but I'm afraid nothing shows or explains how to get the propeller shaft out of the tube. Is the U/J a push fit ? a left hand thread @ a right hand thread ? or what. I am not inclined to just try unscrewing with pliers at each end unless I know which way I am supposed to be turning, right or left ? I do not want to damage anything so simply need to know just what and which way I am supposed to be turning ? The photos just show the prop shaft with a pair of pliers on the brass nut but nothing else !!
Surely someone somewhere can tell me just what I do. I have stripped everything out as Frank advised but now what ?
I must get the shaft out to add waterproof grease and to drill an oil hole or I'm stuck.

Hope someone can help.

Dick
Title: Re: Seaport Tug prop shaft
Post by: Martin [Admin] on October 23, 2014, 04:20:11 PM

My preferred option is the good old soldering iron trick!

See:

http://www.modelboatmayhem.co.uk/forum/index.php/topic,15399.msg150188.html#msg150188

http://www.modelboatmayhem.co.uk/forum/index.php/topic,2319.0.html
Title: Re: Seaport Tug prop shaft
Post by: Netleyned on October 23, 2014, 04:26:02 PM
The u/j is a push fit
comes off quite easily
Just pop a bit of Cyrano in the
hole when re assembling.

Ned
Title: Re: Seaport Tug prop shaft
Post by: astroscouse on October 23, 2014, 04:28:39 PM
Ned, THANK YOU so much, that is all I wanted.

Dick
Title: Re: Seaport Tug prop shaft
Post by: Alan Spencer on April 25, 2016, 12:23:49 AM
The u/j is a push fit
comes off quite easily
Just pop a bit of Cyrano in the
hole when re assembling.

Ned
What is Cyrano ?
Title: Re: Seaport Tug prop shaft
Post by: Martin [Admin] on April 25, 2016, 05:45:29 AM
 
Superglue. Cyrano  = Cyanoacrylate  https://en.wikipedia.org/wiki/Cyanoacrylate
Title: Re: Seaport Tug prop shaft
Post by: hama on April 25, 2016, 10:38:41 AM
What is Cyrano ?

de Bergerac  :D
Title: Re: Seaport Tug prop shaft
Post by: Martin [Admin] on April 25, 2016, 11:57:31 AM
 
    {-)   {-) 
Title: Re: Seaport Tug prop shaft
Post by: Alan Spencer on April 25, 2016, 01:39:10 PM
 Thanks for the explanation as to what, not who Cyrano is !!! No ! I haven't got a big noose !!! %% That is the reason I asked !!! :-))
Title: Re: Seaport Tug prop shaft
Post by: Alan Spencer on April 25, 2016, 01:46:41 PM
I think my U/J has all ready been Cynaro'd by the previous owner !!! Any ideas or will it mean a new shaft and motor ?
Title: Re: Seaport Tug prop shaft
Post by: Martin [Admin] on April 25, 2016, 05:14:19 PM

You could try a soldering iron (if you have one ) to heat it up.
That may release the glue.

also See:
http://www.modelboatmayhem.co.uk/forum/index.php/topic,15399.msg150188.html#msg150188
http://www.modelboatmayhem.co.uk/forum/index.php/topic,2319.0.html
http://www.modelboatmayhem.co.uk/forum/index.php/topic,48990.msg497717.html#msg497717
http://s203.photobucket.com/user/Stevelum_2007/library/Dickie%20Seaport%20Workboat%20Tugboat%20RC?sort=3&page=1
Title: Re: Seaport Tug prop shaft
Post by: david48 on April 25, 2016, 06:13:20 PM
Just wondering is the coupling not held on to the shaft by a grub screw . If it is a red coupling with brass inserts thy should just slide out but the brass insert will be left on the shaft or the motor shaft . Can you see the tube at the motor end ,and if there is room can you get a clamp type oiler on the shaft . It is not best practice but you could try and drill the tube with the shaft in place ,it will not need a big hole then fit the clamp type oiler . All thi if you only have space to work ,I have not seen in a Seaport
David


Title: Re: Seaport Tug prop shaft
Post by: Netleyned on April 25, 2016, 06:32:48 PM
No coupling like that David
A dog an bone is just pushed on the shaft.


Ned
Title: Re: Seaport Tug prop shaft
Post by: Netleyned on July 26, 2016, 02:33:57 PM
After all this,
Mayhem we have a problem :-)
My conversion which is still used by the grandsons
developed a problem.
Running well out of the water but about two mins in it.
Running on 6 v sla found a cell had gone down.
Changed battery same problem.
After suspecting esc wiring etc
I found the prop was tending to sieze.
The fault was the bone half of the coupling.
It had split and was allowing the shaft to
run back letting the spline bit jam in the
Stern tube
I can probably drill through the bone and shaft
and put a pin through, but a new bone would be the best
answer. Any one out there with one in the
come in handy box?


Ned

Title: Re: Seaport Tug prop shaft
Post by: derekwarner on July 26, 2016, 11:21:19 PM
.......Mayhem we have a problem :-)

Brings back memories of another communication....Houston.....we have a problem :o

Sorry Ned...I do not have any such spare ....good luck for your grandsons sake...... derek
Title: Re: Seaport Tug prop shaft
Post by: Netleyned on July 27, 2016, 06:54:10 AM
That's where I pinched it from Derek 8)


Ned