Clunk on pull away - Warm Engine only

[Neil H-W]

Hi,

I have a problem that only shows up when the engine is warm, usually 20 mins in to a journey.
There's a distinct 'clunk' on pull away. It makes me nervous because I've already replaced the Torque Convertor and it 'feels' similar, although that was 'judder' on pull away and happened when cold. Any ideas please ?

 

[LostKiwi]

How are your engine mounts?

 

[Neil H-W]

How are your engine mounts?

I'm not the one that goes under it, but nothing reported at MOT.

 

[Neil H-W]

Would that only manifest itself when warm? It's also intermittent. Also 'sometimes on pull up', feels as though the engine is pushing ever so slightly

 

[LostKiwi]

They are hydraulic mounts so can be affected by heat.
Quick test:
Open bonnet.
Apply parking brake.
Start engine.
Left foot firmly on brake pedal select R
Apply throttle gently whilst holding left foot firmly on brake and watch engine. If one side rises more than an inch mount may be suspect.
Repeat in D.

MOTs don't check engine mounts.