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Water in my Imco ext. box....

Old 08-06-2010 | 07:31 AM
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Default Water in my Imco ext. box....

Any one else ever get water in their extension boxes......I was checking my oil the other day and could see that they are filled right up to the bottom of the outdrive cutout in the transom.........I suspect it is coming in through the Imco access panel cap, so I ordered all new seals and will replace this weekend........any one else ever see this happening....??
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Old 08-06-2010 | 07:49 AM
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Originally Posted by Here's Johnny
Any one else ever get water in their extension boxes......I was checking my oil the other day and could see that they are filled right up to the bottom of the outdrive cutout in the transom.........I suspect it is coming in through the Imco access panel cap, so I ordered all new seals and will replace this weekend........any one else ever see this happening....??
I have not had it, but i seen it and it came in between the transom and box due to poor sealing.
I use marine silicone ( NOT 52/4200 ) regular marine silicone all around and its good.

Also tap them on the bottom and stick a drain plug in there ..after every run , just drain them...( PITA ) but helps monitor.
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Old 08-06-2010 | 09:26 AM
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I have seen it in every extension box. It is really easy for water to get in there washing the bilge, etc. so it may not be leaking. I always drill and tap the bottom of the box and install a drain plug. Drill and tap it for 1/2" npt plug. Then you can drain it every now and then to keep the water out. Good luck.
Eddie
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Old 08-06-2010 | 09:30 AM
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I always had water in my previous boat. The Imco boxes on my boat had a drain plug similar to the one on bottom of boat.

Eddie is right if you dont have one..
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Old 08-06-2010 | 09:33 AM
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Thanks Eddie.......I was thinking of putting a drain in them.....adding that to the to do list.......thanks again Eddie....
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Old 08-06-2010 | 09:39 AM
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Thanks Mark.....
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Old 08-06-2010 | 11:51 AM
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Originally Posted by Young Performance
I have seen it in every extension box. It is really easy for water to get in there washing the bilge, etc. so it may not be leaking. I always drill and tap the bottom of the box and install a drain plug. Drill and tap it for 1/2" npt plug. Then you can drain it every now and then to keep the water out. Good luck.
Eddie
Eddie does it again. Great tip. Makes OSO surfing worth it.
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Old 08-07-2010 | 05:58 AM
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Originally Posted by ROTAX454
Eddie does it again. Great tip. Makes OSO surfing worth it.
So worth it!!!
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Old 08-07-2010 | 08:05 AM
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Thanks guys.
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Old 08-07-2010 | 10:15 PM
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I feel so lucky. My Stellengs boxes are dry. The access panels are above the water lins when sitting still so I'm lucky there and I guess the box to transom and gimble to box seals are good too. Hurray! Still a great idea about the drain plugs. There is alot of spin off greese from the carrier bearings in the box that will need to be cleaned and de greesed.
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