URGENT! Need help locating exhaust manifold

[Wayne Cox]

At 02:41 PM 6/19/2002 -0500, you wrote:
>I need an exhaust manifold that will fit my car (98 Sentra SE) so if
>anyone has an old one lying around I'll buy it off you and even pick it up
>within a reasonable distance.

You might want to mention where you're located.  Tried any junkyards?

>Also, can I drive it even though it's got the crack in it? Any harm done
>to anything if I do? I've been told I can't weld it due to high pressures. The

There are no crazy high pressures in an exhaust manifold.  I'm not sure how
weldable the material is though.  Are they cast iron on 98s?  I think that
can be welded easily, maybe with some pre-heating.  Maybe Bill P. or
another experienced welder will chime in...

I'm not sure if this is urban legend, or true.  But I've heard several
times over the years that exhaust manifold cracks can draw in air causing
abnormally high exhaust temps that can burn, crack, or otherwise damage
valves.  I did have a bud' that lost a valve in his Toyota 4AGE.  When we
swapped out the head, we discovered a big honkin' crack on that side of the
manifold.  Might have just been coincidence, or maybe not.
    -Wayne