Allen Nugent wrote:
>
> Tom,
>
> At 18:52 20/02/98 -0800, you wrote:
>
> >I agree fully with Dean. NO SEALANT ON A HEAD GASKET...... If you want
> >to use something, one old timers trick is to spray a coat of aluminum
> >paint on both sides of the gasket ...
>
> I always thought sealant was essential. I've done a Mazda, a Toyota, and 2
> Triumph heads. The last one was with copper gasket spray (the gasket failed
> in 8 months, but I think that was because I re-torqued it hot instead of
> cold; didn't study the manual carefully enough).
>
> I suppose it depends on the head. The Dolomite (TR7, Stag) engine has those
> angled studs, which must mean uneven stress on either side, and these make
> it especially sensitive to head-fitting technique.
>
> One of the guys in TSOA(NSW) removed and refitted his Sprint head at the
> racetrack, using the old gasket (!) with copper gasket spray. He continued
> racing, and I think he even won one.
>
> Any comments?
>
> Allen Nugent
> Graduate School of Biomedical Engineering
> University of New South Wales
> Sydney 2052 Australia
I recently refasced the heads on my TR8 and replaced them without
sealer. After 2000 miles still OK. I did retorque after 200 miles, but
did not get any more movement. I used all new bolts however, which I'm
told is important
Stu
74 TR6 80 TR8
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