[Spridgets] Mk 1 wipers

[Glen Byrns]

The travel of the wipers is a function of the nylon gear in the wiper unit. 
There should be a degree number stamped on the top of the gear.  There are 
various gears to suit various cars.  Sprites, Morris Minors, Austin A30, 35 
etc.  The location of the drive post relative to the axle of the gear is 
what determines the amount of cable pulled and pushed and hence the amount 
of windscreen swept with each stroke.  You can swap out the gear for the 
correct one if you can determine which one it is.  I believe I have a 
Sprite gear in my Morris truck wiper motor and the sweep is too little for 
the "clapping hands" wipers.  What a pain.  If the nut that attaches the 
cable housing to the wiper motor is not tight, the play will reduce the 
wiper throw also.


Glen Byrns


> You should disassemble the wiper unit.  It sounds like there is something 
> wrong with
> the brush contact inside the unit.  This is not the motor brushes, but an 
> arched contact surface
> that establishes the angle that the wiper sweeps.  It's inside the 
> circular do-hicky where the exposed red wire goes in.
>

>
>> My wipers only arc up about 90* and return.  Is this the way Bugeye 
>> stock wipers work?  They leave a lot of glass untouched.  Time for 
>> Rainx?