Exhaust manifold crack

[bradb]

I just noticed a drip comming out of my exhaust manifold risers on my '94 nautique this morning. There seems to be a crack along the bottom. I drain and leave the plugs out every winter, but I guess it happens... Has anyone else had this problem. Can they be welded or should I just replace it. Any tips or advice?
Thanks
B

[M3Fan]

Personally, I'd replace them. Who knows where else it's cracked, and if it is cracked inside you could have water going into the engine which would really mess things up.

[skinautique]

You sure there is a crack there and that it isn't the gasket leaking? I would wipe the spot dry while running the engine and then look to see what shows up.

[bradb]

skinautique,
Ya, that's what I did... Definately not the gasket.
Thanks though,
B

[skinautique]

no problem. was just hoping to find a less expensive problem!

[bradb]

Thanks guys,
Looks like I'll call up my dealer and get a replacement on the way.
B

[ag4ever]

You might try skidim.com or some of the other discount shops.

Or you could always support your local dealer, either way, I hope it gets fixed soom. The ski season is upon us.

[bradb]

Thanks ag4ever. Two of the other guys I ski with in the mornings have a '94 and a '96 nautique, and 2 others have newer mastercrafts, so I'll still be skiin' in style even if my boat is off the water for a bit!
Laters,
B

[xlwater]

My dealership has successfully repaired exhaust manifold cracks using conventional welding and a product called "Marine-tex". Welders can repair cracks in cast iron using a special welding process, but you must take manifold off. You may also repair with epoxy by cleaning area and applying to surface. I have repaired a number of manifolds this way without any problems. There is a slim chance of an internal crack, monitor your oil level and "look" for problems.