help with injectors

marc wiese wrote:


Need some help here as I have conflicting information-
The primary injectors are supposedly rated per book at 550 cc/min, 165
floz/min, and 550 ml/min (see TD section!)
The secondary injectors are supposedly rated per book at 850 cc/min,

255fl

oz/min, and 850 ml/min.

What colors are the injectors per their position?
My reddish shorter ones tested at 230 cc/min (after cleaning, test

pressure

43 psi, 6 ms pulse, grav wt .75)
The brownish longer ones tested at about 180 cc/min (same spec)
Is the book mixed up on the specs or did the test not test max

performance

of the injectors?

What is the correct color of the primary and secondary injectors? I don'

want to mix em up when I install them!
I'm confused.

PS. The parts book does not seem to show the big o ring that sits in the
primary center housing hole upper step. As I look at it, it seems to

show

the smaller one (NF01-13-257A) on top of the "air bleed socket" but not

the

larger one. Any ideas what the larger one is? There is supposed to be a
larger (N3A1-13-257) on the SECONDARY according to the service/parts

manual.

Are the parts diagrams and book mixed up? This is not how the thing came

apart.

Any clarification here would be greatly appreciated!
Marc



Ed Anderson wrote:


 Marc,

    Don't know how much these photos will  help.  But, the black body with
lavender connector is 550 cc/min Low Impedance (2.5 ohms), the black body
with cyan color
is 720 cc/min Low Impedance.  The ones (no photo) with metal (silver) body
and Red connector is 550 cc/min High Impedance.  The one (no photo) with
orangish brown connect and black body is 460 cc/min Low Impedance.

If the flow was measured at 6 ms that is probably 1/2 of the duration for
max flow around 10-12 MS.  So if you got 230 cc/min at 6 msec for the
reddish shorter ones, then 12 msec would give you approx 460 cc/min.

Hope this helps, mostly what I found on the internet.

Ed Anderson



 
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