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Old 10-25-2011, 11:35 AM   #1
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Question New Motor Mounts Say (WILL INCREASE ENGINE VIBRATIONS )

I ordered some polyurethane M.O.R.E motor mounts and in the instructions it says "Will increase engine vibrations" WTF lol? why would it do this any ideas?

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Old 10-25-2011, 11:50 AM   #2
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polyurethane is a more dense material then rubber much stiffer then rubber therefore more vibes..

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Old 10-25-2011, 11:57 AM   #3
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well that sucks should have stuck with rubber never thought about that lol
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Old 10-25-2011, 12:38 PM   #4
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Yep, poly driveline mounts are the pits. Been there done that, regretted it. Quality rubber mounts are what I prefer.
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Old 10-25-2011, 05:54 PM   #5
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Originally Posted by P0234 View Post
Yep, poly driveline mounts are the pits. Been there done that, regretted it. Quality rubber mounts are what I prefer.
Good to know.
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Old 10-25-2011, 06:43 PM   #6
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I just put on the Energy Suspension poly motor and tranny mounts. All were trashed, so I think I have less vibrations now. I understand the thinking of rubber, but seems to me the poly will last longer
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Old 10-25-2011, 06:46 PM   #7
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I've had poly on quite a few vehicles and the vibratrions never were that bad. I currently have a poly trans mount on my YJ and it's not that different from the rubber one in terms of vibration.
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Old 10-25-2011, 06:56 PM   #8
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I had Brown Dog motor mounts with the rubber bushings. It looked really cool but with my every day rider I went back to stock due to the vibration. I read that a four cylinder Jeep vibrates more than the six. At least I got half of what I paid for them selling on eBay.
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Old 10-25-2011, 08:24 PM   #9
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I have had them on a variety of vehicles. The improved handling more than made up for road noise or vibrations. We arent driving caddys here.

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