> > Those manifolds just don't crack very often. Go have a close look and
> > even just try the nuts with your fingers on a cold engine, my bet is
> > some will be finger loose, or the washers will be.
> >
>
> You can say that they don't crack very often, but the truth is that they
> crack nearly the entire length of the collector where all 6 tubes come into
> 1. That said, you give several good suggestions that should be looked at
> first, but that manifold is definitely prone to cracking.
>
> Your best advice is to check the nuts with your fingers on a cold engine ... > ;-)
LOL!
Mike