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Old 19 July 2015, 19:00   #1
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Question for the bracket experts

Ok, I have a new problem. My outboard bracket is leaking. I didn't check after every outing but after two or three outings I have 4 gallons of water in the bracket. I have no idea how it's getting in there.

I tried a plastic drain plug drilled a hole and hooked the air compressor up to it, pressurized the bracket, and hit everything with soapy water. There was nothing extraordinary. When I pulled the airline it hissed out, the bracket was holding pressure. ????

My next plan might be to just replace one of the access covers on top with a plexiglass one so I can just see in.

Any other suggestions?

Both times I have drained and measured I got almost exactly 4 gallons. This time it was after at least 60 miles of boating. All the bolts holes seems tight, same for the seal between the hull. I was thinking it could be shooting up between hull and bracket but then I should have lots more after high speed trips. I inspected it while diving and everything looks solid.

If the drain plug was leaking wouldn't it leak back out?

Jason
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Old 19 July 2015, 21:29   #2
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What about the lower bolts for the motor? I've seen numerous boats where that was the culprit.
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Old 19 July 2015, 23:10   #3
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They look all sealed up. I guess my only option is to pop it open and start revealing all the bolts.
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Old 20 July 2015, 03:06   #4
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If I understand this correctly ????? then I think it will be the drain plug.
No matter what "the book" says, you need to fit a long brass drain plug. ALL the others leak!
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Old 20 July 2015, 10:46   #5
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The drain plug is a 1" stainless threaded plug. I've tried with Teflon tape, no Teflon tape and it doesn't seem to matter. Also it doesn't leak back out the plug.
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Old 20 July 2015, 12:17   #6
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Well mine never leaked out of the plug either.
I found that no matter which brand of plug I used, they all leaked water in.
Nobody I knew ever found out how or why.
Eventually I just accepted the fact and bought myself a long plug ( about 5inches), made of brass and it stopped immediately.
Not saying this is true in your case, just saying it was true in mine.

Goog luck with finding ( or curing!) the leak.
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Old 20 July 2015, 12:31   #7
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ok, so you mean a longer threaded brass version of my plug?
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Old 21 July 2015, 03:58   #8
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Yes. This is what I meant to say. Sorry if I wasn't clear.
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Old 21 July 2015, 04:18   #9
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Quote:
Originally Posted by Bigtalljv View Post
Ok, I have a new problem. My outboard bracket is leaking. I didn't check after every outing but after two or three outings I have 4 gallons of water in the bracket. I have no idea how it's getting in there.

I tried a plastic drain plug drilled a hole and hooked the air compressor up to it, pressurized the bracket, and hit everything with soapy water. There was nothing extraordinary. When I pulled the airline it hissed out, the bracket was holding pressure. ????

My next plan might be to just replace one of the access covers on top with a plexiglass one so I can just see in.

Any other suggestions?

Both times I have drained and measured I got almost exactly 4 gallons. This time it was after at least 60 miles of boating. All the bolts holes seems tight, same for the seal between the hull. I was thinking it could be shooting up between hull and bracket but then I should have lots more after high speed trips. I inspected it while diving and everything looks solid.

If the drain plug was leaking wouldn't it leak back out?

Jason
Sorry to be a bit thick here but what exactly do you mean by outboard bracket?
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Old 21 July 2015, 10:10   #10
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I took it as transom

If there are inspection hole to see in the hull have you checked these
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