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Old 09-01-2018, 21:37   #1
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Leaking prop shaft

Can I get some advice on how to pack this seal ,the bolts are all the way in
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Old 09-01-2018, 22:38   #2
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Re: Leaking prop shaft

This looks to me like a Volvo Shaft Seal. From what I know, it needs to be replaced. There is no packing.

Here is info: http://www.murrayyachtsales.com/wp-c...g_Box_Eng1.pdf

Here is the install manual: https://www.generalpropeller.com/pdf...structions.pdf

There is a YouTube video of someone who replaced it with the boat in the water. You got to be quick...

Good luck.
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Old 09-01-2018, 22:47   #3
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Re: Leaking prop shaft

Volvo states that it needs to be replaced every 5 years but in some cases the seal is ok after 10 years or more. Wear obviously depends more on engine run hours then days of installation. It does need a regular greasing of the secondary (inner) sealing lips that are not in contact with water and also a "burping" of air after haulout. If not done correctly the ungreased seals or absence of water will lead to premature seal wear and water will pass the seals.
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Old 11-01-2018, 18:47   #4
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Re: Leaking prop shaft

thanks for the help
i burped it and put greece in and i think its ok
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Old 12-01-2018, 05:06   #5
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Re: Leaking prop shaft

Quote:
Originally Posted by tjandoverguy View Post
thanks for the help

i burped it and put greece in and i think its ok


If itís been run for long without being burped, or if itís old, itís time for replacement. Grease isnít going to be a solution here.
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Old 15-01-2018, 17:56   #6
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Re: Leaking prop shaft

What is posted here is correct, particularly the part about greasing the seal. However, perhaps there is distortion in the photo, or its just my eye, but it looks like the prop shaft is distinctly misaligned with the shaft log tube that the seal is clamped to. The prop shaft needs to be centered within the shaft log tube. This can be caused if the engine is misplaced on its beds. If so, this will cause wear on one side of the lip seals inside the rubber, and the seal will have to be replaced after the engine position is corrected.

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