In Reply to: Re: idle mixture trouble posted by Tony on August 31, 2017 at 15:41:17:
Yes, you really need to pay attention to the manifold nuts when loosening. Watch the head of the stud as you turn the nut. If it is turning with the nut, chances are it will come off okay, but you must be careful not to break the stud off. That then becomes major job to fix. I rec'md a deep well 6-point socket because the few threads protruding from the studs often will not allow standard socket to seat all the way down. I use 6-point wrenches whenever I can on these old iron machines. less chance of rounding off and many sizes no longer made so I preserve the originals as much as possible. On brass, the 6-point is even better because the metal is softer than steel and will deform plastically very easy.