No ... blowing is not the right word, "cooked up" is actually a better word
Allways had heating up & overheating issues until I got fed up with this engine ... later I figured out that this's somewhat "normal" for L-Jetronic versions
These engines have a poor cooling performance due to their "perfactible" water running conduct's design through the head. This head is actually identical to other M30 NA models, only its exhaust valves are different to handle with extra heat of turbo pressures
On motronic version there has been ALOT done on performance side and to make that engine really bullet-proof (specific head, oil injection to cool-off pistons, ... etc)
