Prechamber Mod "Flame" Front
Prechamber Mod "Flame" Front
I have always thought the pre chamber is there to start combustion. One thing that I know from studying combustion, primary in boilers, is that you need X amount of space to properly burn a given amount of fuel. Off the top of my head it would appear there is not enough space to cleanly burn enough fuel in the pre chamber. If most of the fuel were to be burnt in the pre chamber then the pressures would have to be very high in order to fill the cylinder and still have enough force to push the piston down. On the other hand if the pre chamber is just a starting point for combustion then the rest of the fuel is burned in the cylinder you will have a more even pressure between the two, and much more space to burn the fuel. So I lean toward no 1 theory.
OM 616,(or anyone know might know) do you know if newer chambers will fit my 77 240d ? I have a set from an 83 300 that I could pull for testing.