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Thread: Mazdaspeed OEM Wastegate actuator = $$$$$$$$

  1. #31
    In memory of 1244 Pmpkinhead's Avatar
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    Thanks for the Waste gate writeup (How To). I would never attempt it! Anyway, my new WGA is installed (dealer warranty) and the the cars power feels so much smoother now. Wow. Do I have to go thru this every 40,000 miles? I wonder if the updated part is better? Oh well. Thanks again!

    367 (mp3yellow

  2. #32
    194 HP-181 FT/LBS TQ ZenProtege's Avatar
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    It seems like I read the ATP WGA had a diaphram made out of a different material than the stocker( supposedly better). I don't know if there's any truth to that, but I thought I would mention it anyways... I don't know about anybody else, but getting the arm of the new WGA on the turbo took longer than anything else for me. I had the WGA bolts off in 10 min..I spent 5 or 6 times the amount of time trying to thread the arm onto the turbo. BTW...did anybody else have to slightly rotate the actuator rod to align it with the turbo's WG flap?
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  3. #33
    I gots SPICE jmv's Avatar

    2003 MSP #1475

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    Quote Originally Posted by ZenProtege
    It seems like I read the ATP WGA had a diaphram made out of a different material than the stocker( supposedly better). I don't know if there's any truth to that, but I thought I would mention it anyways... I don't know about anybody else, but getting the arm of the new WGA on the turbo took longer than anything else for me. I had the WGA bolts off in 10 min..I spent 5 or 6 times the amount of time trying to thread the arm onto the turbo. BTW...did anybody else have to slightly rotate the actuator rod to align it with the turbo's WG flap?
    yeah i had to rotate mine some. My main problem with fitting the rod to the WG flap was that it was like, a millimeter too short when in the closed position. So i jacked with it some, and then realized i had an old pump style bicycle tire pump sitting there in the garage.... hooked that to the vac line on the WGA, had someone give it a pump while i was under the car guiding it on to the wastegate. Worked like a charm.


  4. #34
    世界杯 Allen's Avatar
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    Hopefully, I get the part next week and weather won't turn ugly so that I can work on it before the New Year comes around. Can't wait to keep up with the cars on the road again.....
    Almost stock. Gotta keep this car rolling!

  5. #35
    世界杯 Allen's Avatar
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    Case closed! (hopefully)

    Thanks for all the help here on the forum. Thanks to some cool friends who spent the time to help me install the wastegate actuator (also thx to jmv for offering to help out and JDM Sam for phone support).... also want to thank my producer, mom and dad ... LOL, feel like I just won an award.

    It was a real PITA to install for such a simple part! I didn't have a camera handy, but I doubt that I was going to be able to take step-by-step photos of what we did (I wanted to do that in the first place). All the wires in the way, the steel pipes in the way, stripped screw, broken bracket that we had to deal with made the task that much more difficult... it wasn't as simple as "do this" and "do that" and be done with the replacement. One positive was that we did not have to remove the manifold at all. We removed the heatshield to remove the O2 sensor.

    I didn't buy my car new, so I have no idea how some these misc items broke and others are missing. Could have been modification by previous owner? Or Mazda service department being careless handling previous repairs/inspection on my car (surprise, surprise ... not)? I'm not sure, but it does not keep the Zoom Zoom from running.

    Some issues that we discovered:

    I'm missing two bolts that holds the manifold heatshield in place, I'm missing one center bolt for the manifold (I can see someone not wanting to put the bolt back on... but still...), the bracket (with 3 bolts) that holds the J-pipe in place is cracked (need to find a replacement later) and chipped in one area (but still able to hold the J-pipe in place), had a stripped hex bolt (easily replaced) for a bracket that holds the tubes and steel pipes (3 of them, but I don't know what they are for) near the wastegate actuator... and finally the wastegate rubber tube (to the BPV?) was removed (mechanics chunked it away without telling me, they only said they cut and sealed it... had a spare tube that was used as replacement).

    Removing the clip wasn't too hard but it was a bit of work trying to rotate it to get the screw driver wedged under the pin.

    With three people helping (two was enough, but had room for extra hand, LOL) we were able to get the new actuator arm on and clip it back in place.

    The nipple is facing upwards instead of downwards ... just like the photos Rogue posted... wasn't switched on purpose, I just wasn't paying attention until we were done struggling with it. We didn't really want to mess with it after getting the pin/clip placed on successfully.

    Was wondering.. is the wastegate heatshield necessary to keep? I kept it anyways, but I see Rogue's photo doesn't have the heatshield.

    I noticed that my air intake box has a big hole in the front and it's sucking in all the hot air from the radiator fan. I would like to research a bit more to see if I can improve this ... any suggestions would be great. Was thinking about CAI ... or something less expensive and homemade (aluminum duct hose to redirect the air intake to the wheel well, etc). hehe.

    Hmm, that's basically it ... but we got the darn wastegate replaced... cleared the service engine codes with an OBDII scanner... I've been boosting all day to see if the engine check code would come back, but haven't had any problems yet. I can feel the boost kick in around 3500 rpm... but wish I had a boost gauge to tell the truth! haha... every time I fix something I get drawn to the idea of upgrading something else. Trying to find a picture of a stock engine bay to make sure that the rubber tube we replace is plugged into the right end opposite of the wastegate actuator nipple... should be the right spot though. Will drive it rest of this week and see if any issues pop up... great experience though, enjoyed working on the car, especially when things turn out well.
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  6. #36
    I Love Boobies! Ryoga28's Avatar


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    Quote Originally Posted by Allen
    I noticed that my air intake box has a big hole in the front and it's sucking in all the hot air from the radiator fan. I would like to research a bit more to see if I can improve this ... any suggestions would be great. Was thinking about CAI ... or something less expensive and homemade (aluminum duct hose to redirect the air intake to the wheel well, etc). hehe.
    There is supposed to be an elbow to direct airflow to the driver's side.

  7. #37
    世界杯 Allen's Avatar
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    Quote Originally Posted by Ryoga28
    There is supposed to be an elbow to direct airflow to the driver's side.
    Bummers, didn't see that when I got the car. Grrrreat, something else to work on.... oh well, one step at a time. Thanks. :-)
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  8. #38
    In memory of 1244 Pmpkinhead's Avatar
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    The elbow breaks off real easy!!! If you get another one (recommended), don't bump it.

    367 (mp3yellow

  9. #39
    Still got it. MSP608's Avatar

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    will the atp wastegate fit with the gt28rs? since you have to reuse your stock wastegate to make the disco potato fit i would assume the atp is transferable too?

  10. #40
    In memory of 1244 Pmpkinhead's Avatar
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    Quote Originally Posted by Pmpkinhead
    Thanks for the Waste gate writeup (How To). I would never attempt it! Anyway, my new WGA is installed (dealer warranty) and the the cars power feels so much smoother now. Wow. Do I have to go thru this every 40,000 miles? I wonder if the updated part is better? Oh well. Thanks again!
    Car is going in again on Thursday (2-1-07). I think the WGA is gone again. It stumbles as soon as the engine hits 3000 RPM under ANY load. So much for the 40,000 mile deal. Maybe I didn't get the updated part.

    367 (mp3yellow

  11. #41
    Registered Member Warlock2X's Avatar

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    wow

    thats how much they are from mazda?!?!?! im glad i bought an extended warranty because mines either stuck about half way open or its toast like yours man and if they dont wanna cover it im gonna raise hell becasue i didnt pay an extra 1500 for a 100k mile warranty for nothing.
    Last edited by Warlock2X; 02-01-2007 at 05:02 AM. Reason: ...
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  12. #42
    Still got it. MSP608's Avatar

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    Quote Originally Posted by Warlock2X
    thats how much they are from mazda?!?!?! im glad i bought an extended warranty because mines either stuck about half way open or its toast like yours man and if they dont wanna cover it im gonna raise hell becasue i didnt pay an extra 1500 for a 100k mile warranty for nothing.
    well go break some shit, get your warranties worth haha.
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  13. #43
    Registered Member Warlock2X's Avatar

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    Quote Originally Posted by MSP608
    well go break some shit, get your warranties worth haha.
    already have, the front driver strut is dying due to terrible streets where i live. and theres a leak in the turbo oil turbo return line, not to mention the "hardpipes" breaking where they usually so.
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  14. #44
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    Laser Blue Mica Mazdaspeed Protege

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    **need help**

    I have holes in my wastegate actuator. This is keeping me from passing emissions. Is it safe to blokck off the wastegate temporarily to pass emmisions? If so can someone tell me the safest way? Any and all help will be appreciated!!!

  15. #45
    4ever needin' work Alamo1's Avatar

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    sub to keep these pics handy!

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