Gentlemen. Educate me on engine mounts.
What're some worn mount/s symptoms on a TD42 , that are obvious and is there any trickery I could use to check them ???

For a little while now I've had a minor "clunk" up front , sometimes when taking off and sometimes when coming off load. There has also been an increasing vibration, or more like a cycling "hum" when the engine is under load, especially when at lower revs.
I was under the car before checking everything exhaust related, to make sure nothing is loose in that department ... Cant find anything suspicious.

Picture below is of my passenger side mount.