Cheers muchly.
I've had so much advice over the mounts its been untrue. Each person offering a different solution / combination !
Did you run the one your suggesting i leave out for a while ? Only asking as i've read they all can take 1000 miles odd to bed-in..........
***Still no bad idea for me to try what your suggesting though !!
And by vibration - your talking about at tickover ONLY ?
Last year I had fitted both the upper insert and the upper torque arm. I ran both of those mounts together for about 5 months / 4000 miles - PLENTY of time to bed in.
Vibration with the upper insert is both at idle, AND while driving. Cruising on the motorway was very annoying, the car literally buzzed. Driving at 35mph, the interior mirror would vibrate too so everything appeared a little shaky in it. The car did feel great to drive, but the vibration became too much for daily driving.
Next step was passing the car back to my mechanic to take the upper insert out, leave the upper torque arm in, and install the lower torque arm.
So I'm now (happily) running upper torque arm and lower torque arm. There's very little vibration at idle, if any at all, certainly isn't noticeable to me anymore. The only time I've noticed more vibration is when pulling off in 1st gear, once the clutch is all the way up and you're moving, I wouldn't say there's any noticeable vibration at all. Also none during regular driving/motorway cruising etc.
The big difference is, the upper and lower torque mounts replace weaker rubber inserts and limit engine movement. The upper engine insert doesn't replace anything, it's additional. It just fills an empty gap causing the engine to effectively be bolted solidly onto the chassis. So while the engine is running, all the vibration from the moving parts in the engine are transferred straight through to the chassis.
After removing the upper insert, and installing the lower engine mount, 80% of the vibration was gone, the car was instantly much quieter and a much more pleasant place to be - but the key thing is it didn't drive any differently.
You can see instantly when you install the upper torque arm, the engine cannot rock back and fourth like it could before on the rubber mounts. This is the mount that's doing all the work. I genuinely cannot see the benefit, or the point of the upper insert. It doesn't seem to actually do anything useful.