[Shop-talk] Head studs

[David Scheidt]

On Tue, May 6, 2008 at 12:08 AM, Wayne <wmc_st at xxiii.com> wrote:
> > I would have read the responses to be use anti-seize compound on the
>  > threads, not necessarily on the smooth shaft.  BTW, ARP says that loctite is
>
>  I should have gotten on this earlier...  but wanted to mention lubed vs
>  dry threads can make a HUGE difference in torque specs.  I read one
>  article that suggested de-rating the torque spec as much as 80% for an
>  oiled thread, if the original spec was dry!
>
>  I would consider the manufacturer's specs first;  seems like older
>  domestic engines I've read about say the spec is oiled.  I don't see any
>  point in anti-seize or Loctite.  But my serious engine tweaking is
>  limited to Nissan SR20s (though I'm damn good at it!)

Anti-seize serves as a thread lubricant, and helps ensure that the
engine comes apart the next time you take it apart.  Loctite does
that, with the bonus of not coming apart before you take it apart.

-- 
David Scheidt
dmscheidt at gmail.com