My W123 has a manual 5 speed. When pulling away in 1st, if I don't release the clutch gently I get a slight clunk.
This also happens when changing to 2nd and to a lesser extent 3rd.
There's obviously some play somewhere but I'd like advice where to look first.
If I grab the prop shaft, should there be any rotational play at the diff end? What about the gearbox end?
I read somewhere it could be engine mounts, but these have been changed recently along with gearbox mount and diff mount.
Could this be a sign the clutch needs changing?