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BFWAKE75

Exhaust manifold hole

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BFWAKE75

So today I was out on the water and I noticed that my bilge pump was running on and off during driving.   So I stopped to see if there was water in the bottom of the boat and when I opened my motor box I had water all over the motor.  So I was looking around I could hear water running in and I located it on the back side of exhaust in a spot where it lookes as if has test looking welds in it.   The hole is about 1/4 inch directly in the middle of that spot.   I was wondering if anyone has ever had anything like that happen or what the spots are for on the manifold .  Each side has about 4 of these spots.  Also anybody have a fix for me with out buying new.  

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hunter77ah

Same thing happened. We patched with some jb weld and aluminum flashing but bought a replacement manifold. I'll post some pics of the fix. It's held for about 20 hours so far (my dad is waiting until the off season to take off the old manifold).

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MadMan

Rumor has it those welded in plates are sacrificial anodes. 

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BFWAKE75

So does that mean I will need to purchase new?  If so have any idea where to look.  Also why would they just go bad boat is a 2005 with 760 hrs

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MadMan

Some owners have cut out the originals and had aluminum plates welded in.

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BFWAKE75

Mine now are cast I am almost sure.  So that would not be an option for me if they are cast

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MadMan

Cast aluminum can be welded. Are yours aluminum? 

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BFWAKE75

Not sure will have to check

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BFWAKE75

I talked to jim at Inmar he told me they are plug and I just need to purchase new ones and have them welded in the the manifold. Don't have a cost yet but will let you know

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