Very good information you provided.
I should note that the later H6 carbs, as came on TR3s starting in about
1958, had the push-on fuel lines to the float bowls, instead of the
banjo-bolt fitting.
Keith Edwards
Suffolk, VA
2 TR3Bs with H6 carbs (push-on fittings)
2 TR4As with HS6 carbs (push-on fittings)
1 Austin-Healey 100 with H6 carbs (banjo-bolt fittings)
1 Austin Princess Vanden Plas limo with Stromburg downdraft carb
"Peter C." wrote:
>
> Guys, Perhaps I can help the ID question here and for the future.
> SU carb nomenclature runs thusly:
> H = side draught
> _ (no letter) = float bowl connects to carb body with a banjo-bolt
> or D = float bowl attaches beneath body and is separated by a Diaphragm
> attached to the jet
> or S = float bowl on Side of body connected with a flexible jet tube/hose
> or IF = Integral Float bowl beneath body, no diaphragm, jet adjusts with
> screw, late models
> and
> 1 or 2 or 4 or 6 or 8 = number of eighths of an inch (6x1/8 = 3/4) bore
> diameter.
> Hope this isn't redundant. Hope it helps.
> Peter C
> --------
> At 12:36 PM 8/6/1999 , Irv Korey wrote:
> >
> >Rob Christopher wrote:
> >
> >> The only modification I notice from the diagram is that the vertical
> throttle
> >> linkage is not at the end of the shaft near the front carb, but is
> >relocated to
> >> be between the carbs. I remember reading someone (sorry I forget who
> >wrote it)
> >> noted the carbs were hard to synchronize because the linkage was pushed
> >from the
> >> end and the throttle shafts could twist, so pushing at the middle would
> >appear
> >> to be a good mod.
> >
> >Typically, if the vertical linkage is at the front, you have H6's. Both
> >TR4's and 4A's with H6 carbs or Strombergs have their vertical throttle
> >linkage in front of the front carb. The the linkage is in between the
> >carbs, the carbs are typically HS6's. If that isn't the case, then
> >someone went to a lot of trouble to fit HS6 linkage to H6's. The HS6
> >linkage is very similar to the TR6 linkage.
> >
> >Irv
> >Converting my 4 from Strombergs to HS6's this weekend
|