Chris Lillja wrote:
>
> >>rebuilt HS6's. They're quite beautiful, clean, polished and they
> adjust to a beautiful, steady 900 rpm idle....
>
> >>Once prodded, however, they don't seem to want to return to idle.
<SNIP>
> And no, there's no leak around the shaft...
>
> More questions:
<SNIP>
> 3. Could the timing be off sufficiently to INCREASE the idle speed?
> Too advanced? The vac advance seems to work fine and hold a vac. (no
> leaks there) It was fine before....
<SNIP>
> Any and all input welcomed.....
>
> "Still ride in triumph over all mischance..." - Shakespeare
>
> Chris Lillja
> TR4A
> Norton Commando
> Spit MKIV
Chris,
Just my $0.02 here... I would certainly check your timing. If I am
correct, an idle is a relatively "high-vacuum" situation, and since
you've "re-built" your carbs, and in a sense removed any chance of
vacuum leaks, it might be kicking in your vacuum advance that much more,
much earlier on. Am I on the right track here? You know, you've got
that much more vacuum applied to the dashpot than you had before,
because you eliminated several leaks. Again, just a thought...
Peter Ficklin
'63 & '64 Spits
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