[SEL] Hercules tg, idleing

[jbcast at charter.net]

> 
> From: "Bill Dickerson" <bill at antique-engines.com>
> Date: 2004/07/20 Tue AM 01:07:39 GMT
> To: "'The SEL email discussion list'" > Can't say on the Herc, but some mixers and modern carbs use a throttle plate
> that is NOT round.
> It closes the passage, but is not straight up and down, or perpendicular to
> the throat. This way it won't close off the fuel tube. 
> In other words, on many engines, the throttle when closed will be at a
> slight angle - they are egg-shaped rather than round, to accomplish this. IF
> that one is home-made, it might be round instead.
> 
> Might take a think on that - see how they are with the engines that list
> members have.
> 
> Bill
Bill, this one looked like a football, it was touching at the points, rounding them off a little made it seat a lot better. It is still at a noticeable angle when closed, probably 15 or 20 degrees. The fuel tube is at the top of the throat and the butterfly closes toward it, when closed there was no airflow through the tube and the engine would lean out.Restricting the intake like a choke would keep it running.
J.B.