Re:Air shrouded?

[Alex Kowalski (audial@aol.com) (Tonya Jones) <tjones@wppost.depaul.edu>]

Steve wrote:

>I was wondering, does air shrouded injectors refer to the injector
>cooling fan blowint air on them or an internal passage? Is that what that
>pipe leading to the center of the cylinder head is for? Why are they air
>shrouded (if that's what the pipe is for)?

The air shrouded refers to the fact that the later, Viton-tipped injectors
are not just pressed into the cylinder head like the older ones: they go
inside a cylindrical  insert which itself screws into the head and provides
an "air shroud".  These inserts have an additional o-ring associated with
them, from what I remember.  I've never taken mine out yet, sorry I can't
be more specific.  

Best Wishes,
Alex