air shrouding in mystery & DeWitt vindicated...

[Huw Powell]

> Sorry, De Witt, your theory about the lower o-ring and the purpose of
> the air shrouding is frightenly wrong. The injectors are "air shrouded"
> as a means of cooling them. No air is introduced into the fuel and
> atomization remains unaffected unless the minor drop in injector
> temperature makes a difference.

I figured before I started drawing gif's I would look this up.

Probst, ch 5 page 14:

"Beginning in 1984, some KE systems have air-shrouded injectors to
improve fuel atomization."

(other text would indicate this is pretty much an idle-only phenomenon,
which makes sense)

and page 15:

"Most KE injectors are air shrouded to improve fuel atomization for
smoother idle, better fuel economy and reduced emissions."

I guess my warm start theory is left up on the shore flexing its gills
in vain!

-- 
Huw Powell

http://www.humanspeakers.com

http://www.humanthoughts.org