<VV> Removing head studs

[Mike Ioanes]

----- Original Message ----- 
From: "Daniel Monasterio" <dmonasterio at megared.net.mx>
. After this step, I used an impact wrench (9/16", 6 point socket) giving a 
few shots out, then in, then out... until the nut starts moving. I don't 
know why but, the impact wrench works better than a hand wrench on turning 
the nut only and not the stud. Sometimes it is better to use a 14 mm. socket 
instead of a 9/16" (14.3 mm) because of tighter fit to the nut.

    Daniel
It's because the impact wrench starts out, or gets there very fast, at its 
maximum torque.  Example:  loosening the nut holding the pulley on an 
alternator.  I've had the mechanics where I work change pulleys on a LOT of 
alternators for my customers...NEVER have I seen one not spin right off with 
an impact wrench.  If you were to try to do this "by hand" (and I've done 
that a few times) you'd need to put the pulley in a vise or somehow stop it 
and the alt. from turning.  don't know if I'm explaining the physics right, 
but am sure of the results.
Mike Ioanes