Originally Posted by
drac1
Hi Ed,
Which header are you using? I think it may be different to the one I have. Can you post a photo?
The YS header has a copper washer that goes between the flange and head, (I use 2 washers here). The flange is threaded and has a female taper, the header has a male taper that fits in and is held on by a single castellated aluminium nut. These tapers match perfectly and seal when tightened. It's the aluminium nut that comes loose, not the flange in the head.
drac:
I am using one of the headers here. Specifically I use # HAT 822:
http://www.centralhobbies.com/Exhaust/headers.html
After seeing your reply it appears as though we are using different units. Is your unit different than the one on the link above?
Ed