I broke the upper plenum vacuum fitting while installing my REVi intake I noticed it when i drove it and I heard a hiss coming from the plenum! there was an open hole just behind the throttle, I plugged it up with proseal that i use on the helicopter main rotor head parts its designed to be all weather and stand up to 200 mph plus whatever the rotor is spinning at, on the apache, hopefully this works because a new one costs about $450.00

 

Why in the title are you asking for help if you've already fixed it?

 

just asking for all the of your guys opinion hopefully it will hold together

 

Should be OK. You might want to take the upper manifold extension off and glue it again. It is easier to see if it is completely done right.
The vacuum port is for the VFAD, so it isn't critical, especially if you have and aftermarket intake.

How did you break it?

 

i would bet it will. but time will tell..

i dont know what proseal is, but if on a rotor head. i think you have solved you problem..

beers

 

edited, I was only kidding, sorry

 

Im second to that, Ban him !

 

is it not possible to drill and/or tap a common metal vacuum fitting in it's place? I'd try that before buying a manifold

a picture would help

 

go to mazda ask for 4206F recall for a new engine :D