It is risky, but if you are careful, the score will allow a chisel to
snap the tube.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

" wrote:
>
> Ok, I am not sure I understand. I have a threaded hole in the manifold
> that has a hollow soft metal tube threaded into it. Are you guys sawing
> down into the hole to divide the tube into pieces, or are you sawing
> across the top to create a "screwdriver" slot into the tube? That
> second one can't work, not enough metal. The first one seems risky to
> the steel threads of the manifold.