[NSRCA-discussion] header help

[Bob Richards]

I used one of those headers and had the exact problem you are having. In fact, most of the people I knew that used those headers had the same problem after using them for some time.
 
The braid is merely reinforcement for the flexible tubing inside the braid. My opinion is that that the internal convoluted tubing did not stand up to repeated flexing from the engine vibrations, eventually failed, and then started blowing exahust through the braid. I never took one apart to see inside, though.
 
Bob R.


--- On Thu, 9/10/09, Roger Hammel <skitimberlakespartava at yahoo.com> wrote:

















Have a new header - AAP #500 flex header from Advanced Aero Products I just installed - was unopened old stock. Old corrugated cooling type header would back out of the head no matter what - tried multiple copper washers.  I gave up. so installed new flex header. No backing out, but motor noise substantially increased. Found that braided stainless header portion will leak air if I blow in exhaust end.  Anyone familiar with these flex headers ?  Is there something special I need to do to quiet them down and not leak ?  Thanks for any help.  Roger

 
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