Arthur, good point.
Chris, there are ball bearings under the accel jets to stop the fuel
from draining out of them. If these were omitted then the fuel delivery
wouldn't be instant with throttle opening. Interestingly, both the carbs
I got from Tom W were missing these balls. I wonder how many others lost
these little suckers during a strip-down.
Note that the WIAs have the ball inside the retaining screw for the
accel jet, while the WIP have a separate ball under the retaining screw.
Cheers,
Paul.
Arthur Blackwell wrote:
>
> Just a thought.....did all the little check valve balls get replaced in the
> rebuild?..............
>
> Paul Heuer wrote:
>
> > Chris,
> >
> > The guy that rebuilt my carbs noticed they were lean at idle. He drilled
> > out the idle jet to the next size up. Can't tell you whether my motor is
> > bored out, sorry. Yes, the accel pump delivers fuel under the initial
> > throttle opening. I think from memory the 36WIP-3 on a S2 has a No 70
> > accel jet.
> >
> > Yes, there is an 'easy' way to check some of the jets. If you have an
> > Alpine parts list, all the correct jet sizes are listed there. If you
> > don't have one, then I can look up your jet sizes for you. The high
> > speed bleed jet isn't stamped, so you can't check it this way.
> >
> > Choke tubes 30mm, shine a torch down the top of the carb and look for
> > 3mm high stamp '30' just at the top of the grey alloy choke tube.
> > Metering jet No142, stamped in jet inder the carb body.
> > I'll need to check on the idle jet, high speed bleed and accel jet to be
> > sure.
> >
> > Stay with it. Even after rebuilding mine the rear throttle is still
> > sticking, grrrr.
> > I hope this helps.
> > Cheers,
> > Paul.
>
> --
> Art Blackwell
> Denver, CO
>
> " Even in the future nothing works " Dark Helmet " Spaceballs "
-- Paul Heuer paul.heuer(at)dsto.defence.gov.au Defence Science and Technology Organisation Air Operations Division - Salisbury Phone: +61 8 8259 5109 PO Box 1500, Salisbury, South Australia, 5108 FAX : +61 8 8259 5507
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