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Thread: Should we be concerned?
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09-29-2018, 05:12 PM #1Member
- Join Date
- May 2018
- Location
- Michigan
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- 56
Should we be concerned?
We have been running the boat out of the water hooked up to a hose in order to perform an oil change. After turning off the water supply and waiting for the oil to drain I noticed a consistent drip from the prop shaft through hull fitting. Is this something I’m going to have to get addressed?
Thanks in advance
Sent from my iPhone using Tapatalk2016 Moomba Craz
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09-29-2018, 05:54 PM #2
boat likely has a water cooled shaft seal. Its fed by the raw water supply
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10-01-2018, 10:08 AM #3Senior Member
- Join Date
- Jan 2018
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- Lexington, KY
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- 369
100% normal.. you should be concerned if ever DON;T see water there!
This isn't the exact seal used on our boats, but a similar design. I uses water from the engine to lubricate and cool the seal:
2018 Moomba Craz | Autowake 2.0, Zero-Off, G6 Pumps | Captain Blue/Dark Graphite/Silver Flake | Enzos + Lead
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10-04-2018, 12:52 AM #4Senior Member
- Join Date
- Oct 2013
- Location
- Ft. Collins, CO
- Posts
- 688
They call this variety of shaft seals "dripless"
As stated, it actually pumps a little water out so it only "drips" when you're not in the water, otherwise you're just "refilling the lake". The older variety intentionally allowed water to slowly leak through and it "dripped" into the boat.2007 Mobius LSV
1989 Sanger Skier DX - sold