Quote:
It doesn't really make a load of difference which way it's pulling,


It does, unfortunately: the air path through the empeg was designed for extraction, exiting through the lid. The inlets are purposely placed next to the PSU circuitry.

If you induct (blow into the case) through the lid, you will be (in this case) blowing hot air onto the disks. The folding of the cables and the position of the sled ensures there will only be circulatory airflow above the sled and not below it. Given the limited space behind the dash on this car, this could easily explain the overheating. I am not in the least bit surprised, to be honest.

I'm willing to bet the vent holes on the top of the case are close to the upper wall of the console column with very little space on either side of the sled - this was what it was like on the 325 I did. This is not in the least bit conducive to any kind of cooling.
_________________________
One of the few remaining Mk1 owners... #00015