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.
> Well, they've been on and off the car three times now while I've tried
> to center the throttle discs. Off the car they seem to work perfectly.
> I've tried three different sets of discs...I tried a rather strong
> spring.... I'm not OUT of ideas yet, tonight I'm going to pull 'em
> again, triple check the carb body and hold 'em up to a light source to
> check the alignment of the disc in the bore....
>
> >>>Thanks for some of the answers folks....
>
> And no, there's no leak around the shaft...
>
> More questions:
>
> 1. I can see a TINY bit of light around the throttle disc (new) when
> closed....has anyone else seen this...once again, the action seems
> perfect....
>
> 2. The dashpots seem to work perfectly and the jets are centered...
>
> 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....
>
> The carb flanges seem nice and flat....the spacers are nice and
> solid...the manifold face is clean and flat...the PCV pipe seems
> solid....
>
> Any and all input welcomed.....
>
> "Still ride in triumph over all mischance..." - Shakespeare
>
> Chris Lillja
> TR4A
> Norton Commando
> Spit MKIV
Chris, did you remember to connect up the vacuum advance line? I had a
leak round mine. Sure sounds like a vac leak somewhere. Stu
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