[TR] Back pressure

[John Gillis]

still trial running the motor/engine (wont go into that one again) on  
the TR2. There is significant pressure, no smoke, coming back through  
the oil filler timed with the "beat" of the engine, I don't know the  
nature of TR engines, all previous work being on the Herald/Vitesse  
range, but I have never experienced such powerful pressure,  
particularly on a re-built engine, should I look into this further,  
any thoughts, theory's??
Regards
John