> -----Original Message-----
> From: Stuart Steele [SMTP:ssteele@switchsolutions.com]
> Sent: Tuesday, November 04, 1997 10:06 AM
> To: 'Triumph List'
> Subject: Re: Subject: Early Stromberg Carbs, an update.
>
> Some Stombergs fitted at various times are, in fact listed as
> non-adjustable in the Haynes ZS book. I think that the needle itself
> is
> adjusted via the grub screw in the side of the air horn ( or,
> possibly,
> not at all ). Some Strombergs are listed as adjustable, and adjust
> from
> the top, with the tool that you have mentioned. There is, however, a
> second type of Stromberg, supposedly only fitted to 1969 models, which
> is adjusted from the underside with a special tool, which is inserted
> through an opening, normally blocked by a plug, in the float bowl.
> From
> my limited experience, the top adjusting type always has a tiny notch
> in
> the damper cylinder for engaging the adjustment tool, and the
> non-adjustable type differs only in lacking this small notch. The
> other
> type is easily identified by the removable plug on the underside of
> the
> float bowl. As an aside, Volvos used this same bottom adjusting
> Stromberg at one time, so if the adjusting tool cannot be found from
> Triumph sources, then Volvo sources may have it.
>
I would caution against using the presence of the plug as an
indicator that the carb is adjustable from below. My 76 has the correct
carbs for its year. The float bowls did have the plugs but they are
there only for draining the bowls as far as I can tell (and provide yet
another handy place to leak :p ).
I recently fitted a couple of plug-less float bowls to my carbs
(I got them from a local used parts dealer - no idea what they came off
of).
I also used a couple of float bowl gaskets I got from a local
Volvo dealer (great source of parts for ZS carbs and Laycock O/D's BTW)
and this guy insisted that the carbs were adjustable from beneath which
is why the plugs were there. I don't know why Triumph kept the plugs
around when the carbs were not adjustable from below but the manuals
certainly make no mention of it for the later cars anyway.
Peter Zaborski
76 TR6 (CF58310 UO)
Calgary AB Canada
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