eurautodave

help. i'm at the shop working on my car and i have this question about the air bleeds under the primary injectors...how important are they? i had the primary rail off last week to replace the fpd. after i put it back together the car ran like **** under boost(but mostly felt like the ignition was breaking-up between 2-4k). anyway, i've got the primary rail off again and the only thing i've found is that itlooks like one ofthe air bleeds is broken. does anyone know how they might affect running? thanks

dvandit

The air bleeds are very important at the lower RPM, but not too sure about 2-4K RPM. What is very impoortant is that the rubber seals that are part of the airbleeds, (also the short rubber tube thats goes over the injectors should be in good shape to provide an air tight seal.

Derek Vanditmars

eurautodave

thanks derek...the injector seals seem to be in good shape...it is just when i look down the injector ports the front air bleed looks like the picture in the manuel but the rear air bleed is missing the bottom part.

eurautodave

i just pulled the primary air bleeds and cofirmed my suspicions. the rear air bleed is broken-the lower part is gone completely. i guess i'll call the dealer tomorrow and wait for parts. i wonder if the missing plastic is going to cause problems or can the engine digest it? any ideas? where are the real rotary gods???

dvandit

I would try to see if you can find it, but if you have run the car at all, (especially if you have done some WOT runs) then it has probably gone through the engine. Since it is plastic it should not be a big deal.

Since the primary injectors are such a PITA to get at, I always get new stuff for that area. That way you know it is OK after it is all put together again.

eurautodave

yeah a ran it a few times. now i'm wondering if it ran bad because of the broken air bleed or because of where the broken parts ended up. i'm not even sure if i broke the air bleed when i did the fpd last week. could it have been like that for a long time and i just found it because i'm looking at everything so closely? i don't see how i broke the air bleed unless something fell in the injector port and then pushing the injectors back in on top off the foreign object broke the air bleed. seems kind of unlikely...but if that happened how should i proceed? remove lim? just replace air bleed and put rats nest, coil pack & uim back on just to find that it runs the same...arrgghh.

dvandit

I think the primary injectors are on the rotor housings, after the LIM air passages. So the LIM would not have any 'spare' parts in it?
I don't think there are any places for the plastic to lodge itself, but you never know.
You could try using a shop-vac somehow attached to where the primary injectors are, or if the injectors are back in, then where the LIM and UIM connect. Either case, lots of duct tape should be required. May have to rotate the engine to get the rotor in right spot to allow some air flow.
Could also fish around from the primary injector location with a hooked end and see what you find. Not sure if you can damage something with this method.

eurautodave

no one else has any ideas on this? i can't be the first to have this problem...again.

rxrotary2_7

its plastic. it has burned up and is gone. dont use any hooks or aything like that. wasting your time. you can just replace them. i do not have any in my secondary since swithching to single turbo and top feed injectors in all 4 corners. i dont have any problems... maybe because when secondaries are called on, there is already boost to aid in atomizing the fuel?

eurautodave

i got my new air bleeds today. i tried blowing some compressed air in the ports and didn't hear any parts rattling around. i guess i'll just put it back together and keep my fingers crossed.