[mikedsilva]

a few years ago when I was building my personal motor, I remember doing it to try and isolate a slight knocking sound that appeared during warm up.
ie, when cold, when started the engine was quiet... a few minutes in the slight knocking sound would appear.. then at full temp it was quiet again.

Reading everything I could, I found where someone said the steel gear that drives the ims shaft, had worked loose on his crankshaft... I thought to have that checked. My machinist thought I was bonkers.
I checked my ims gear lash and it was surely out of spec. Someone suggested it might have been the cause of the noise.. everything was replaced... everything was in spec.

Completed the build of the motor.... (did it purely to try and fix the noise).... and the bloody thing did it still.