New motor mounts - nasty vibration

87gninpa

Active Member
Joined
Jul 5, 2003
Put on a set new set of stock rubber motor mounts and now have a nasty vibration throughout the whole car when revving it. Originally I saw the DP hitting the crossover slightly so adjusted that and now its better, but still feels awful.

I got to thinking, when I removed the originals I noticed the bolt that went through the mount to the frame pad was so tight it actually clamped the mount to the pad. When putting the new ones on I just torqued all of the bolts to factory spec. Should I tighten that bolt more to clamp the mount? Maybe its moving a bit? Car had no vibrations before and from outside the car looking into the engine bay it seems to run nice and smooth, engine doesnt move at all.
 
My bet is it'll loosen up some with some mileage, I've noticed this before on other vehicles.
 
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