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New Engine Mounts?

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Old Jul 9, 2021 | 09:12 AM
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Default New Engine Mounts?

I recently had my exhaust tips powder coated and when I got the car back I noticed the tips were crooked.
Based on what I've read on the forums here and YouTube, I understand that you can verify by looking at how much the exhaust tips move on acceleration.

Anyway, I've attached a link to a video that shows the before and after the powder coating and it seems like there is movement.

Would you guys agree? I'm not sure why there would be more movement after the work though.


Last edited by FamilyMan928; Jul 9, 2021 at 09:13 AM.
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Old Jul 9, 2021 | 01:16 PM
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Maybe they are not tight. The exhaust tips are clamp style where both surfaces are very roundish to allow the tips to be easily adjusted. Make sure they are centered with clamps tight before evaluating.
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Old Jul 9, 2021 | 03:07 PM
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Based on your before video, the tips are hanging low. Your mounts are at least 13 years old and the weight of the engine has stretched the rubber over this time. So yes replace.
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Old Jul 9, 2021 | 03:23 PM
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You can check the dates on the mounts when I looked at mine they were the original mounts so I just swap them out w the function first ones. As rev previous poster said if they are original it’s time to change. I also added the function first transmission inserts and my shifting feels much cleaner.

also if you didn’t know the 911 mounts are odd in the sense the engine pulls down on the mount instead of resting on it so over time the mounts will stretch regardless of miles more of a function of time.
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Old Jul 10, 2021 | 09:26 AM
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Thanks everyone, appreciate the feedback/insights!
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Old Jul 10, 2021 | 08:24 PM
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Default Time for mine too

I noticed today I have the right side hanging about 1/2-3/4” lower so I guess it’s time.

I’ll be going OEM since I don’t need any more stiffness for my driving style/use.
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Old Jul 12, 2021 | 06:52 PM
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Originally Posted by bloomjbmw
I noticed today I have the right side hanging about 1/2-3/4” lower so I guess it’s time.

I’ll be going OEM since I don’t need any more stiffness for my driving style/use.
Somebody recently quoted Jake Raby in regard to engine mounts. He pointed out that anything more solid than the stock mounts transmits vibration to the anti-knock sensor, which can retard timing. That is exactly what happened to me with semi solid mounts. Stock mounts have just been ordered. Not sure if the knock sensor can be disabled, but I'm not going to mess with it. So yes, stick with stock if you can.
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Old Jul 12, 2021 | 09:45 PM
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Originally Posted by bheit1
Somebody recently quoted Jake Raby in regard to engine mounts. He pointed out that anything more solid than the stock mounts transmits vibration to the anti-knock sensor, which can retard timing. That is exactly what happened to me with semi solid mounts. Stock mounts have just been ordered. Not sure if the knock sensor can be disabled, but I'm not going to mess with it. So yes, stick with stock if you can.
Interesting. I went with the hardest insert. I put the other inserts in the Porsche parts drawer. Maybe I should swap to the softest and see how that feels ...
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Old Jul 12, 2021 | 10:06 PM
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Not only are they hanging lower but they are way off. The gap from the bumper to the top of the exhaust tip(either) was 1-1.25" when my mounts were bad.
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Old Jul 12, 2021 | 11:03 PM
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There's a lot of height adjustment as well as side to side on those tailpipes. Looking at them for even only counts if you had them set equally a long time ago and then never touched them (change your spark plugs?).
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Old Jul 13, 2021 | 01:12 AM
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Wayne is correct, the pipes can tilt front or back left or right, pull at you or get pushed in more than usual. They can yaw and tilt in any direction. I got mine really good after doing them black. It took 20-30 minutes of adjusting, walking back checking it and more adjusting. You can get them almost perfect with a little time. The motor mounts could very well be a separate issue on top of the alignment of your tips.
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Old Jul 13, 2021 | 01:35 AM
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Aren't the stock engine mounts about the same price as a couple tanks of gas? On my 996 I'm pretty sure I could change them in < 60 minutes..
I'm doing the ones on my 996 (03) just cause they are old..
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Old Jul 14, 2021 | 09:42 AM
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Originally Posted by pdxmotorhead
Aren't the stock engine mounts about the same price as a couple tanks of gas? On my 996 I'm pretty sure I could change them in < 60 minutes..
I'm doing the ones on my 996 (03) just cause they are old..
I haven't found cheap stock mounts, all have been in the 4-500 range...
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Old Jul 14, 2021 | 04:10 PM
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Check out Rockauto....Rein maybe oem .

I am rocking 964RS mounts - made by Uro (about $120 + 35 in hardware)

Replacement
https://www.rockauto.com/en/catalog/...tor+mount,5552

964RS
https://www.rockauto.com/en/catalog/...tor+mount,5552
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