Outsane
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- #41
I just took apart an OEM that I replaced quite a few years back.
Mirror mounting system seems to be all plastic parts except for the screws.
I see three potential failure points and wondering which one is most common.
#1 is the ears (hooks) attached to the plastic mounting bracket. (Mine was ok here)
#2 is the bottom pivot screw that secures the mirror assembly. (threaded plastic receptor cracked)
#3 is the holes (eyes) which drape over the ears and support the weight. (I had one side fail)
I think the weight bearing holes on the motor segment (#3) would be most likely to fail.
Mirror vibration and movement will snap one or both of these cut out holes.
At that point perhaps the bottom screw will crack its threads.
The part shown in Picture 1 is painted cast metal, not plastic.
#1 I have not heard or seen these metal hooks breaking, and if they did then the bracket would still work.
#2 This is where the screw goes into from the bottom, and these do split. This is also not a pivot point, the motors do all the pivoting/rotating of the mirror. I am working on a little brace to hold it together, maybe I can also make one if the post breaks off. All it needs to do is hole the motor assembly from rotating out. This makes it so we can assemble the mirror with out seeing screws. With the original mounting this part is in tension and why the "ears" break and the post can split.
#3 Is the issue the bracket I made is taking the work place of. These "ears" are thin and need to be with the original design, so the little hooks in the first image can keep the motor assembly from falling out.
I made a little video of the motor mount added and it should not move at all when mounted, this is why the bottom screw puts the assembly in tension.