[Public-list] PROP SHAFT TUBE LEAK

[Rob Alley]

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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