Sunday, August 26, 2018

The battle of the blinker

Once again, the right blinker stopped working in the 280z.  I have a plan to replace the original turn signal switch with a DPDT toggle switch, but I decided to give the current switch one more chance.  I pulled the unit off the column one more time and took a look.



As I moved the blinker lever back and forth while watching the switch, I realized that the lever was not moving the switch fully into right-turn position.  As I examined things closer, there were two factors preventing full movement:
  1. There is a small coil spring that is used to apply pressure to the return tangs.  The tangs limit the movement of the switch.  I bent the ends of the springs to allow the lever to sweep fully through the range of travel.

  2. The switch housing itself wasn't centered. After returning the switch to the assembly, I carefully bent the housing towards center.
If my theory is correct, the lack of a solid engagement of the right turn due to the above issues was causing arcing on the switch and causing the contacts to dirty quickly.  A few drives on a hot day should tell me if I was right.  If not, I will implement plan "B" as mentioned at the beginning of this post...

No comments:

Post a Comment