What is a prechamber ball pin and how can I check it.

There has been a lot of discussion about nailing in cylinder #1 but I have not found a soloution yet.

Thank you

Engrx2,

I think the ball pin is to help atomize the fuel sprayed from the injector. You have to take out the injector and the top of the precombustion chamber to see and check the ball pin. To replace it, you have to remove the precombustion chamber. You might need a special tool to do this.

P E H