Frank,
Do you mean that after 500 miles the nuts will be loose enough to have
to tighten them back down to 45 pounds(I think)?
Mike MacLean-60 Sprite
Frank Clarici wrote:
> Mike Maclean wrote:
> >
> > This might be a simple question to some, but what is the proper
> > technique to torque and re-torque the head on my rebuilt 948? What
> > increments do you torque it down with the first time? And when you
> > re-torque in the first 500 miles, do you loosen them first? Or just
> > check if their still torqued correctly? I was just going to torque it
> > down in 10 pound
> > increments the first time. Pretty basic stuff, but all Haynes says is
> > to retorque after the first 500 miles.
> > Mike MacLean-60 Sprite
>
> Mike
>
> Start in the middle and work outwards. (there is a picture in the book
> for exact sequence but it is not THAT critticle)
> 10lb increments is fine. I do it twice, 25 then 45 all around.
> After 500 miles, start in the middle and tighten to 42 (or what ever a
> 948 should be) then readjust your valves. It is a good idea too keep the
> valves a bit loose during that first 500 miles, set them at .013 or .014
> cold (stock cam) and reset them at .012 after the retorque. (this is
> what I do on the advise of an old race car builder. I do not know if it
> is good or bad, I never had any troubles)
> --
> Frank Clarici
> Toms River, NJ
> Bugeye Sprite
> 67 Sprite
> 59 A40
> http://www.exit109.com/~spritenut/
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