Hello: I'm considering a new 28 Heat. Both Nordics that I know of (25 and a 28) suffer from the internal exhaust flappers burning up or going bad. One friend even got water in his engine. Is this a problem in Nordics due to the elbowing of the exhaust down to the water line? Anyone else heard of or experienced this?

Thanks.

Have sold many Nordics and not one of them has had this problem.

imartin,
They can make an annoying rattling sound at idle. I took mine out and just use the external Salisbury valves/flappers with no water intrusion or reversion issues at all.
BTW, the noisy baffle issue is not unique to Nordic. They all do it. Re burning or blowing them out, if you have a big HP motor, it's gonna happen, again not a Nordic issue. My Baja with a 600HP blower motor did it too.
Steve

Since Ian brought it up, I'll expand on it. He's referring to some boats I've sold. The problem is with the corner exhaust. EVERY boat i've sold with this type exhaust has failed. Some in the first 5 hrs. of operation(496 Mag). Imco makes them, it's not a Nordic issue. They have sent new flappers but don't have a solution. I will make a bet that there are a bunch of boats out there that have burned them out, but don't know it. The only reason I found it was because a customer hydrolocked his engine and I went searching for a cause. I can't say for sure that was actually the reason it happened, but I found no other problem.

3 of 4 gone when I changed to mufflers in the Flame

I don't think this is a Nordic issue though

So, would straight exhaust out the rear with external flappers be the solution? That's my preferred look anyway....Thanks.

Bob,
I'm glad this came to light. We were (?) in the process of changing Butch's 96 Heat over from the very low transom exhaust to the new corner style. He's even got the through hulls ordered from Nordic. We've already had the old outlets glassed up.
Should we go straight out the back? He is running the stoker 496"/blower motor. Sounds like we should! BTW, there is another Heat (a 97) in town with a 525SC and straight exhaust.
It sounds great, but it is LOUD!

I suppose on either exhaust set up, Cap't Call / switchable exhaust is not an option?

Ian, They don't offer captains call. I don't see why you couldn't get it with the corner outlet though. I could always add it here, after delivery.

Steve, I prefer the straight out the back myself. That way you can run mufflers. But with the corner there is room to add mufflers in line if you needed to. I don't know how much of a problem the flappers really cause. I've only seen the one boat actually ingest water and really don't know if that was the cause or not. That was on a 25 also. The 28s sit a little higher so that might be why I've not seen it on them.