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Thread: How To: Assemble A Forged MZR DISI Motor

  1. #26
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    Default Re: How To: Assemble A Forged MZR DISI Motor

    Reinstalling the balance shaft sucks. Need to realign it. Most don't seem to mind the extra vibes especially if you still have stock side mounts....if you just leave it out. Ptp and jbr have delete kits for it.
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    Default Re: How To: Assemble A Forged MZR DISI Motor

    Quote Originally Posted by Mr Wilson View Post
    Reinstalling the balance shaft sucks. Need to realign it. Most don't seem to mind the extra vibes especially if you still have stock side mounts....if you just leave it out. Ptp and jbr have delete kits for it.
    i marked it with paint before removing
    i guess it should work unless it's turned 180 and there will be compression phase where it was exhaust before =o)

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    Default Re: How To: Assemble A Forged MZR DISI Motor

    Hey ya'll, I'm actually a Washington State resident & primarily a MazdaspeedForums.org member but I made an account here just to say thank you for all the kick-ass information I found in this thread!

    I have an '07 silver MS3 GT and my VVT died a few months ago... I was just barely outside of the extended warranty window and I wasn't about to pay Mazda $900 in labor to fix it so I decided to do it myself. I'm only 24 and I'd never done any sort of job involving cam timing before but I went against many people's advice to just pay somebody to do it and not risk destroying my engine. Long story short, it took a whopping 3 days to do but it all went smoothly, I saved $1000 and I learned more about this engine than I ever dreamed of. But seriously, the factory service manual had some gaping holes in its explanations of timing and other procedures so threads like this were invaluable to my success. Thanks again!

    I also set up my DSLR on a tripod and made timelapses of the whole repair procedure. Hopefully I can motivate people to be ambitious, do lots of research, and tackle your own big jobs. Check em out:


  4. The Following 3 Users Say Thank You to SeeMeGovan For This Useful Post:

    greyseason (03-31-2014),loki (03-31-2014),Snotrocket (03-31-2014)

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    Default Re: How To: Assemble A Forged MZR DISI Motor

    Also, here's the giant "How-To VVT" thread on MazdaspeedForums.org that has a plethora of related info. The biggest chunks of knowledge are the OP and my follow-up post. Hopefully somebody can make use of that thread in tandem to this one like I did!

    Check it out here.

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