Leaks

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John Richard

I need some help. Jack's Place has a persistent leak coming from some where aft of the dripless shaft seal. I thought it was from the rub rail, however, I have put copious amounts of strategically placed 4200 (fast drying) to suspected spots. The leak continues. I now think the leak may be coming from the exhaust muffler can that is centered beneath the aft bunk. I checked the hose clamps and they "seem" OK. However, there is a rust spont in front of the can and not behind it. The boat is only 4.5 years old, so I would be surprised if this can is the culprit. But I can't come up with any other solutions. There is a trickle of water leading to a low spot directly below my PSS. The seal has been eliminated as the source of the leak. Any ideas? John Richard s/v Jack's Place
 
Dec 2, 2003
4,245
- - Seabeck WA
Mine's cracked.

A few years ago I noted a leaking stress crack on the front of my fiberglass muffler in the same spot. I smeared Marintex on it and it was OK for a couple years, but now it's dripping again. I haven't decided whether to glass it or replace it.
 

Rick D

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Jun 14, 2008
7,203
Hunter Legend 40.5 Shoreline Marina Long Beach CA
Did You Check The Strut Bolts?

I had a weeping from one of them once. Also, what I have done to trace in the past is to buy dry-board markers and outline evey area you suspect. It will be apparent where the leak is or isn't. Good luck. Rick D.
 
Aug 9, 2005
772
Hunter 28.5 Palm Coast, FL
Leaking aft end

The exhaust system should only leak when the motor is running. You may also consider the Rudder stuffing box.
 

Mulf

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Dec 2, 2003
400
Hunter 410 Chester, MD (Kent Island)
On my late 2002 H410....

I developed a small leak, seepage actually, that was coming in from the rubrail just below the swim ladder and running forward (downhill) to the area you mentioned. I discovered it by climbing inside the swim platform lockers and found a faint water stain along that path. Have you checked that area? The dealer removed that section of rubrail and sealed the hull deck seam itself. Had the same problem on the first launch from the starboard rubrail and they did the same thing there. I later learned that the dealer knew that the factory had a problem with careless placement of screws that caused the rubrail not to be full watertight.
 
M

Michael Collins

Leak Detection

I have not tried this, but It has been suggested. In order to find a leak, seal the ports and the cabine. Place a shopvac blowing in one of the ports sealed with duct tape. The shopvac is expected to create enough postive preasure inside the boat that you can use water outside to detect a leak. Has anyone tried this?
 
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