custom29scarab

I need some help with the cause of an exhaust leak on my starboard CMI elbow exhaust system. There is a water drip and exhaust leak at the clamp just past the elbow at idle. I think it has to do with the tailpipe seating but I am not sure what to do? Any Help?

JJONES

I Seperated Mine,cleaned Off The Surfaces And Sealed It With The Right Stuff,seems To Work Fine,I Reused The Gasket As well!GooD luck

Turbojack

I had same problem, ended up buying 2 gaskets & using both to stop problem.

custom29scarab

Thanks guys I will give it a try. That is what I was hoping to hear. The guys at a marina I took it to in the thousand islands told me that the headers and exhaust on the CMI only last about 2 seasons and then they crack so I was a bit worried. Just bought the boat about 3 weeks ago.

Turbojack

I am in trouble then since I am on my 3rd season

mr_velocity

Me too, I'm going on 7 seasons with mine.

Vinny P

If you are referring to the cool collar joint, there should be no chance of water leaking there unless you are experiencing some reversion. That joint should be dry. I would make sure that no water is getting into the heads.
I just upgraded power this season and ended up with the same issue. The headers were allowing the motor to revert water. I fixed it by going to full dry tails.
Anyone looking for a pair of almost new standard Bravo CMI wet tails?? I have a pair for sale.

BillR

It is reversion. It is 99% likely that it is NOT getting to the motor.
Just put in 2 gaskets and you'll be good.

Been there - done that.

custom29scarab

Thanks I appreciate the help with this issue. I already bought another gasket in hopes it would be the cure.

Turbojack

You may need 2 new gaskets per side, once they get hot they take a set & sometime they will not seal right again.