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Old 07-03-2017, 12:11 AM
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I swapped in AWR motor mounts when I was under the car recently. I tossed the old motor mounts to the side and then it occurred to me that I should have used these...

What purpose do these little brackets serve? Did I **** up by leaving them out? I haven't thrown them out yet, just wondering.


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Old 07-03-2017, 02:20 AM
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Is it to protect the rubber mounts from rubbing against the subframe or something? The more I think about it, the less necessary they seem.
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Old 07-03-2017, 05:07 AM
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They provide a uniform surface for the mounts to attach to and spreads the load out between the cradle and mounts. I would advise against leaving them out IMO.
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Old 07-03-2017, 08:34 AM
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He put in AWR mounts. Those are the "cups" for stock mounts.

Throw in trash.
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Old 07-03-2017, 08:35 AM
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They're a backup in case the stock rubber mount fails, https://www.miataturbo.net/engine-pe...ed-them-65397/

Moti said to leave them out when I installed my Blackbird poly mounts.
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Old 07-03-2017, 12:13 PM
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Originally Posted by JoshEE
They're a backup in case the stock rubber mount fails

Moti said to leave them out when I installed my Blackbird poly mounts.
That's what I've read as well. I always throw them away, motor hasnt fallen out yet.
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Old 07-03-2017, 12:29 PM
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Yeah everything felt fine, I just get nervous when I see more than a few ounces of leftover parts lying on the garage floor.

I was expecting way more NVH, pleasantly surprised so far.

Anyway, thanks guys.
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