Sierra Wiper Motor

[Guest Dredd]

I'm struggling to find information on the sierra wiper mechanism. My SuperSpec is fitted with a Sierra unit and lever system where the cantelevers have been shortened. The problem is that I don't get sufficient sweep across the windscreen. I have been told that the motor assembly can be opened up and an adjustment made to alter the length of the sweep. Has anyone got any experience with this unit?

[Les Welsher]

Derek,

If I remember correctly from the video on the shortening of the sierra wiper mechanism, there is a small linkage arm with pivot that is attached to the wiper motor spindle. The amount of sweep can be adjusted by increasing it's length to the pivot point.

 

Les

[Guest Dredd]

I've removed the motor assembly (again) and I can see the logic in lengthening the arm to the spindle to increase the sweep. However, I don't have access to nor the experise to cut and weld. Also how much should I lengthen? Could be hit and miss. So, how about, as the self park isn't wired on the Super Spec, I just have the blades set to 'park' (albeit manually) facing the drivers side instead of the passenger side? That way I'll get a decent area cleared in front of the driver.

 

Does that make sense?