Dan,
Do not know, but I do know that I have had to do this step on more then one
occasion. It worked for me.
I would like to know why, because it surprised the hell out of me the first
time that I had to do it.
Mark
----------
> From: DANMAS <DANMAS@aol.com>
> To: mlazye@northvalley.com; miket@urgrgcc.edu; triumphs@autox.team.net
> Subject: Re: Jump Starting TR3
> Date: Friday, December 19, 1997 8:06 PM
>
> In a message dated 97-12-19 22:39:20 EST, mlazye@northvalley.com writes:
>
> > Step 2. Loosen the four screws on the wiper motor gear box cover and
rotate
> > the wiper stop switch 180 degrees, this will keep the wiper blades
stopping
> > in the same position.
>
> Mark:
>
> If you do this, the wipers will park 180 degrees from where they are
supposed
> to. When converting from positive to negative ground, nothing needs to be
done
> to the wiper motor.
>
> When you change the polarity on the wiper motor, depending on the type of
> motor, one of two things will happen - either the motor will turn in the
same
> direction as before, or it will rotate in the reverse direction. To the
> wipers, it makes no difference. The internal mechanism of the wiper motor
> assembly converts rotary motion to linear motion. Regardless of the
direction
> of rotation, when the rotary portion of the gear is in a given position,
the
> linear portion will be in the given corresponding position.
>
> Changing the gear 180 degrees is a good idea when converting from LHD to
RHD,
> or vice-versa.
>
> There is one potential problem with reversing the polarity on a wiper
motor if
> it is of the type that will reverse direction of rotation. If the wipers
have
> been used a lot, there is the possibility that the gears have worn badly
in
> one direction, such that operation will be rough or jerky in the
oppositie
> direction. Not always, and maybe never, but a possibility.
>
> Dan Masters,
> Alcoa, TN
>
> '71 TR6---------3000mile/year driver, fully restored
> '71 TR6---------undergoing full restoration and Ford 5.0 V8 insertion -
see:
> http://www.sky.net/~boballen/mg/Masters/
> '74 MGBGT---3000mile/year driver, original condition
> '68 MGBGT---organ donor for the '74
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