do these orifices have a direction? Like is one opening bigger than the other? Or is it just a straight even opening? If I wanted to test my system, you're saying I should have a vacuum of 15 or so to the tranny at idle and that should decrease to 0 as I move the throttle open? What do the different orifices control specifically? The level of vacuum at idle or the rate at which it transitions to 0 at higher rpm or both? I would guess that the orifice controls the vac level at idle and the tranny vacuum valve on the IP controls how it changes relative to RPM. Is that right?
When I checked my system a while ago I was confused since I was getting a full 22 to the tranny and to the top of the valve on the ip, but i was getting 15 to the EGR. This was at idle. I don't have any shift problems that I know of, though, so I didn't worry about it. But it seems like that is backwards. That is why I ask if there is a direction to the orifice. My orifice is blue by the way (and please don't misconstrue that!
).
Do you know what the green dashpot does exactly? I have heard people say they give a controled leak.
Thanks for the info you posted.