Q. For a spark plug M 14 x 1.25 the last figure 1.25 stands for (Solved)
1. Gap between electrodes in mm
2. Pitch of plug thread
3. Electrode diameter in mm
4. Tip width in mm
5. Size of plug thread
- b. Pitch of plug thread
1. Gap between electrodes in mm
2. Pitch of plug thread
3. Electrode diameter in mm
4. Tip width in mm
5. Size of plug thread