Resonating noise

[Lucastein]

Hello all,

I am just reaching out for some info, my bus tends to make a resonating noise while driving, quite a low end, mild thudding, however the sound does not happen while my clutch is pressed in.

If I'm parked and I Rev it, I get the sound, parked and Rev it with the clutch pressed in I don't get that noise. Could it potentially be too much movement at the crank (aka due for a reshimming?)

Any input would be great before I remove the engine. Cheers!

It's a 71 westy (1641)

[timvw7476]

a worn bearing in the transaxle. Known failure point in the 002 transaxle.
There is a steel support plate that can be fitted to support the new roller bearing.