[Tigers] Wiper Motor Replacement

[Alex Haugland]

Removing the entire system for a Lucas wiper motor can be fiddly.  I 
generally find it easiest to remove the motor and drive cable separately 
from the wiper wheelboxes and tubes.  Remove the wiper arms first, then 
undo the nut holding the tube to the wiper motor. Detach the wiring then 
remove the bolts holding the bracket to the car and work the bracket 
free, pulling the worm drive cable free from the tube.  The wheelboxes 
are held to the car by the chromed nut mounted below the wiper arm 
pinning the shaft for the wheelbox between the external chrome 
escutcheon and an internal plastic escutcheon.  Once free, with the 
chrome escutcheons removed, the wheelboxes can be poked through the 
scuttle.   If you can't work the wheelboxes out from under the dash past 
the demister pipes, wiring, etc., you can separate them into sections by 
loosening the two screws for the retaining plates on each wheelbox until 
you can slide the tubes out and take it out in sections.
If you don't need to service the wheelboxes but just the motor, then 
leave the wheelboxes in the car and feed the new cable back into the 
tube when you reinstall the motor.  If the teeth are worn on the 
wheelboxes, you can turn them around 180 degrees after you pull the 
motor out and then when you reassemble, you'll be using previously 
untouched teeth for the 120 degrees or so of wiper motion.   When you 
reinstall, put a bit of fresh grease on the worm drive cable to 
lubricate it and the wheelboxes.

I recently disassembled my car pulling the whole wiper assembly, but as 
I was taking the car completely apart, I don't remember what was in the 
way before I got started.  I know I had the dash out (and thus the 
glovebox) when I did it, which made it really easy to see what was going 
on and may have already pulled the demister vents as well.

--Alex Haugland
B9470334LRXFE

On 4/18/2014 2:23 PM, Graham Harlowe wrote:
> Listers -
>
> Any suggestions on how to replace the wiper motor (and the spined extensions
> that drive the wiper arms) with minimal disassembly?  Looks like any number
> of things could be in the way - glove box, demister tube, vent box, blower
> motor, lots of wiring, etc.  However, it looks like I can loosen the dash
> screws, pull the dash out a few inches to provide some maneuvering room,
> then snake the 'arm' and splined drives into place and attach the motor.
> Has anyone 'been there' recently?
>
> Before installing the used wiper unit - any advice to improve
> reliability/performance?
>
> Thanks much,
>
> Graham Harlowe
> B382001466
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