[Public-list] PROP SHAFT TUBE LEAK

[Jim & Carole]

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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