I've gotten the same issues lately I think. When moving off with a cold engine (no warming up), as soon as I *disengage* the clutch to shift into 2nd gear the engine bumps or lurches on its mounts with an accompanying thump sound that is disconcerting to say the least. I know the mounts are worn but
! What is the cause? It doesn't happen after that, luckily. Everything is stiff when cold, the car doesn't rev freely, certainly isn't loose at all and apparently it is a shock to the engine when the torque is disconnected that suddenly, if you want to call that *sudden.*
I also habitually, regardless of weather, get a thump when engaging reverse gear. I can remedy that just by briefly feathering the clutch (more than usual) just enough to get the car to move. But if I want to reverse out of a long driveway or similar with the clutch fully engaged, then it will be troublesome at first. Again, this is apparently attributable to worn mounts. I'll add those to my growing grocery list of issues...

I also habitually, regardless of weather, get a thump when engaging reverse gear. I can remedy that just by briefly feathering the clutch (more than usual) just enough to get the car to move. But if I want to reverse out of a long driveway or similar with the clutch fully engaged, then it will be troublesome at first. Again, this is apparently attributable to worn mounts. I'll add those to my growing grocery list of issues...