[SEL] Hercules tg, idleing

[Bill Dickerson]

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

-----Original Message-----
From: sel-bounces at lists.stationary-engine.com
[mailto:sel-bounces at lists.stationary-engine.com] On Behalf Of
jbcast at charter.net
Sent: Monday, July 19, 2004 7:59 PM
To: sel at lists.stationary-engine.com
Subject: [SEL] Hercules tg, idleing


I took the mixer of my 12hp Herc throttle governed this weekend, it was
overspeeding, over 300 with the throttle shut down. The butterfly looks to
be home made, soldered in. It didn't fit very closed when shut so I worked
on it a while and got it to shut fairly tight. I put it together and it ran
about 325 on the governor, when throttled down it would die. I took it down
and when the throttle was closed it blocked the fuel tube. I drilled a small
hole where the tube met the butterfly, I can now slow it down to about 200
rpm s in the slow position. Still a lot faster than I would like, I'll have
to work on it some more. What kind of speeds can I expect from an engine
like this? J.B. Castagnos
Belle Rose, LA   

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