[Farmall] Manifold Studs

[John Wilkens]

Larry, try heating the stuck nut to red hot and then let it cool 
down--maybe a couple times....applying a good penetrating oil before and 
after.  It should break loose enough to work it back and forth with 
penetrating oil.  Usually best not to try to turn off a red hot nut because 
it will often gaul (weld itself) to the stud.  With the broken stud, grind 
down the broken face of the stud so you can center punch it exactly in the 
center and drill it with a small bit, followed by a tap-size bit.  Use good 
quality bits that can withstand the hard steel of the stud.  If retapping 
is not successful you can drill and tap it to the next larger size--or use 
a heli-coil.  Good luck with the nasty things!  John W.



At 11:22 AM 07/11/2005, you wrote:
>Folks,  The exhaust pipe (not the manifold or the muffler)  on my 1941
>Farmall A broke yesterday.  It is a distallate manifold so the exhaust
>pipe is not just a pipe but an $89 item from Case-IH-whaterver.   I looked
>it over and it had been welded before sometime in the past 64 years.  One
>stud broke and I suspect the other one is not in good shape with all the
>heating and cooling over years.    I tricks I should know in trying to
>loosen the bolt off the good stud....and in drilling and tapping the
>broken stud out?  By the way new studs are $16 from Case-IH-whatever.
>
>Any advice appreciated.
>
>
>Larry Hardesty
>Kearney, Nebraska 68849-2240
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                    In the wide-open spaces of NE Oregon