I just put a used set of imco power flows on this past week and can't get the risers to seal.got new imco gaskets and both sides leak.risers doesn't looked warped.I'm at a loss.anybody else have this problem? Thinking I'm gonna pull them and put a bead of high temp rtv.what's everbodys thought's on this.thanks in advance

That is what I did with mine and so far it isn't leaking. That was only last year, but I don't see why it won't last a long time.

Thanks .that's what I'm gonna do then!

High temp ultra copper worked like a champ

That is what I used also. I think it let's it move a little to allow for the aluminum and stainless expansion differences.
Happy Boating just in time for the 4th.

get yourself a tube of the right stuff,best gasget sealer you will ever find!

Ok Mike, quit teasing us! What is the best high temp stuff to get?

lol..... Right Stuff is the name of it.

http://www.permatex.com/products/our...he-right-stuff

thanks,guess my post was a bit confusing.

HAHA, you got me on that one, Thanks for advise.
I like the fact that it is an assemble and use, but it is a gasket maker, not really a high temp sealant. But I have no experience using it and I will probably get some to keep on hand to use for the next project though.