[Public-list] PROP SHAFT TUBE LEAK

Mike Lehman sail_505 at hotmail.com
Sun Jun 25 01:44:57 PDT 2006


I could be that the water is coming from the rudder post and not the stern 
tube from the propellor



Mike Lehman
~~~_/)_/)~~_/)~~~




----Original Message Follows----
From: Jim & Carole <barchettamia at pinelink.org>
Reply-To: Alberg 30 Public List -- open to all <public-list at alberg30.org>
To: Alberg 30 Public List -- open to all <public-list at alberg30.org>
Subject: Re: [Public-list] PROP SHAFT TUBE LEAK
Date: Sat, 24 Jun 2006 15:26:49 -0400





Rob, Mike,
Thank you for your advise.
  On closer inspection it appears that  water is seeping through craks in
the fiberglass on the  small shelve that is about 2 inches below the
stern tube. On Monday I plan to haul out, clean and glass the area. Any
further advise?

Also since there is some green corrosion near the aft end of the stern
tube in the bilge I hope to rebed the tube.
In your opinion should I remove any of the Thiakol before I rebed with
5200?  I hope to relaunch soon so I wonder if it is best to use the
_fast cure.?
_Thanks Again
Jim Allocco



Rob Alley wrote:

 >The gray stuff is Thiakol, the original sealant used on the stern
 >tubes.  If the stern tube is leaking, it is probably because the stern
 >tube, which is threaded into the cutlass bearing, has come adrift from
 >the Thiakol.  Suggest at next haulout you remove and re-bed both the
 >stern tube and the cutlass bearing.  Mike is right--you can use 5200,
 >but be prepared to be particular about aligning the stern tube around
 >the propshaft. The shaft needs to be centered!!
 >
 >Best,
 >Rob
 >Jim & Carole wrote:
 >
 >
 >
 >>My  boat was lunched yesterday after being out for 10 months.   I had to
 >>tighten both the prop shaft and rudder shaft packing nuts, as they were
 >>leaking.   There remains a leak around the copper tube where the prop
 >>shaft enters the boat. The tube apears to be bedded in some type of gray
 >>"gunk".  There is a small shelf or pocket about 3" wide x 4" long x 1
 >>1/2" deep  a couple of inches below the tube that I was full of water. I
 >>swabbed it out and it slowly refilled.  Reaching the area (even after
 >>removing the spark plugs) is difficult.  Can it be adequately cleaned
 >>and rebedded without removing the engine? What type of compound should
 >>be used to rebed the tube? The boat is the later model ,#565 . Would
 >>anyone with any  advise please advise?
 >>
 >>Jim
 >>Barchetta Mia #565
 >>
 >>
 >>
 >>
 >>
 >>>
 >>>
 >>>
 >>>
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_______________________________________________
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Please support them.
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