Ok my one of my injectors were leaking, so I shipped them off to Witch Hunter to get prettied up. Now that I've got my UIM pulled off the engine I've decided to clean things up a little bit. I've come up with two quick questions for the more experienced users.

1. I undid the (2x) bolts and (3x) nuts that hold the Dynamic chamber to the UIM, but I cannot get the S.O.B. to separate. I even tried heating the whole unit up in the oven (200 degrees) hoping it would soften things up, but no luck. Any ideas how I can split these without damaging either part?

2. There is a small plastic fuel diffuser thing inside the UIM where the secondary injectors seat (pic). Mine were pretty cruddy so I tried to clean them, breaking the first one. Where can I find a replacement, or is it even necessary to have these in?



Thanks for any help you all can offer.

 

You can try a prybar to separate the two halves. Sometimes RTV and old gaskets can really stick the manifolds together.

Yes, you need to keep the diffusers/air bleeds. If you try to seat an injector without one, it will leak at the rail connection. It won't go into the rail far enough. You can get some new ones through Mazdatrix: http://www.mazdatrix.com/c-6.htm, or a dealership.

 

thanks for the info. i tried a prybar but couldn't get much leverage. if this rain lets up tomorrow i'll heat it up in the oven again and go mount it finger tight on the engine, then pry on it.

and if i'm already going to have to order (2x) of those diffusers, can you tell me if there are 2 more for the primary injectors? just so i can order all 4 at one time.

 

Yes, there are diffusers for all 4 injectors. They're on the Mazdatrix page I linked to.

 

wow, mazdatrix ain't giving those things away. guess i'll just buy the secondaries and be extra careful around the primaries. thanks again for all your help