Re: Help: My 83 300D Turbo diesel has a high crank case pressure

The deal is these engines are not magic.  They are only 5 cylinders, anythi=
ng over 100K miles will have blow by gases.  If Mercedes made a v8 diesel i=
t would last longer.  I seriously doubt anything is really wrong with you e=
ngine other then the rings and cylinder bores and pistons being worn.  Dies=
el use high compression so when these leak, you get major blow-by gases.  A=
n oil additive and or thicker oil may help if your climate is not too cold.=
  I remember my 300d turbo had so much blow-by, it was starting to shut off=
 the fuel fuel pump when I was going up mountain roads - due to high crankc=
ase pressure!  The vacuum shut off must be designed to shut off with high c=
rankcase pressure as well as vacuum when key turned off.  Subscribe to my B=
enzproducts channel on youtube.  Also, if you have bad blow-by, the engine =
will start to run hot and overheat in hot weather since so much super hot e=
xhaust is being pumped into crankcase!