Dave writes:
> Isn't it the other way around? The oil is supposed to work as a
> damper, so getting rid of it would make the piston move more quickly
***********************
Yes this is true, but what actually happens is when you slam the throttle
open the piston acting against the oil is dampened so that the suction
created by no restriction from a wide open throttle is now acting upon the
fuel orifice in relation to the amount of air allowed by the slowly rising
piston, drawing more fuel in relation to air than if the piston were
allowed to rise quickly without damping. In other words for a brief moment
fuel is being drawn out of the jet orifice more than it would normally be,
and the airflow is restricted a little more than it normally would be,
thereby enriching the mixture. The timing of this is controlled by the
spring pressure and the damping characteristics of the oil.
Barry Schwartz in San Diego, CA
Bschwartz@encad.com
72-V6/5sp Spitfire ( daily driver )
70 GT6+ ( when I don't drive the Spitfire )
70 (sorta) Spitfire ( project )
73 Ford Courier ( parts hauler )
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