When I used HS6 carbs, I drilled and tapped the vent holes or made new
holes and installed a drilled out and cut off bolt that I threaded
into the top (I think 1/4-20). This allowed me to install hoses onto
the vents. It also allows any fuel from a stuck float to drain away
from the headers
>
> On a related subject, does anyone know of float chamber lids that
will fit
> SU HS6 carbs, but have an external bowl vent (ala H6 carbs) ?
>
> Stock TR4A HS6 carbs have the vents built into the lids such that
it's
> difficult to add a hose to them, but IMO connecting the vent to the
air box
> is a necessity for running a fresh air intake. Otherwise, any
pressure
> difference between the top of the float chamber and the air box will
affect
> the fuel flow and hence mixture. I could probably create
something with
> JB Weld, but if they already exist ...
>
> Randall
|