I would think that the hardness is only skin deep on the exhaust valves, and
you won't want to remove any more metal than necessary. Grind the seats and
lap the valves to match; it provides the most gas-tight fit that way.

On 3/7/06, pronks <john.pronk@xtra.co.nz> wrote:
>
> Hi, does anyone have an explanation why the Bentley states not to
> machine/reface  the exhaust valves but only to "lap" them.
> It seems it is ok to reface the inlet valves.
> Any ideas?
>

--
Jake
1984 Vanagon GL
1986 Westy Weekender "Dixie"
www.crescentbeachguitar.com