Engine: Expired / General Subjects

1. A Lowering the blow down adjusting ring further increases the area of exposure to pressure after the valve pops and as a result, the valve blow down will decrease.
2. B Lowering the blow down adjusting ring further decreases the area of exposure to pressure after the valve pops and as a result, the valve blow down will increase.
3. C Lowering the blow down adjusting ring further decreases the area of exposure to pressure after the valve pops and as a result, the valve blow down will decrease.
4. D Lowering the blow down adjusting ring further increases the area of exposure to pressure after the valve pops and as a result, the valve blow down will increase.

Tip: press A-D to answer