CPE rear engine mount annoying noise when car momentum shifts

[Elusivellama]

Hey guys, I've installed the CPE RMM on my car, tightened the bolts to 70lbs torque as directed, but I keep hearing this annoying noise, sounds like a 'clack' or a knock everytime I reverse and brake, and move forward and brake again. A local mechanic thought it was coming from the RMM dogbone arms where the 1/2" bolt secures it to the transmission (horizontal). Anybody have this problem? How to make it go away...?

[Elusivellama]

Hmmm this thread here details my exact same problem:

http://mazdas247.com/vbb222/showthread.php?123754540-CPE-Rear-motor-mount-install-question

I'm going to go and try to torque that thing to 85lbs and use loctite, unless I'm about to do something really bad in your opinion :)

[WeatherB]

You shouldn't need to torque is that much, something else is wrong. Get under there and double check your torque on the bolts, especially the one that runs horizontally through the engine mount and connects the CPe to the Car's transmission.

[Elusivellama]

They're all 70lbs torque... was just verified

[synchr0]

Just had the same thing fixed on my 05 sedan, apparently it was a broken engine mount. Luckily it was covered under warranty.

[Elusivellama]

Tightened that sucker to 90lbs of torque and used a lock washer, it appears to be gone now. Bushings on the CPE mount and the L-shaped tranny mount have no problems, still look and feel good (the mechanic used a pry bar to jiggle the components and the bushings only vibrated slightly, as expected, but didn't shift or pop out). We'll see after a week or two.