Windscreen wiper motor assembly advice please
 

Hi guys, before I complain to an ebayer, need to check my theory! I bought a used windscreen wiper assembly off of ebay, like the one pictured below, however on arrival, and like the one I removed, it doesn't even move by hand?

Now am I wrong or should this be possible? Or is the motor really that powerful?

http://i.ebayimg.com/t/VAUXHALL-CORS...sBw~~60_12.JPG

Cheers for any answers.
Ian

Re: Windscreen wiper motor assembly advice please
 

yes, most likely high gearing.
I cant turn my leccy screwdriver tip round by hand, same reason

Re: Windscreen wiper motor assembly advice please
 

From memory from my time working at Honda they don't. Maybe your old one does due to a fault.

Re: Windscreen wiper motor assembly advice please
 

You can't turn the them by hand usually - there's a lot of reduction between the motor pinion and the quadrant.

If possible take the cover off the motor pinion and turn it by hand.

Re: Windscreen wiper motor assembly advice please
 

If you find a nearby car (not your own) and try to use the wiper blade to turn the motor you'll find that the wiper blade just bends and breaks, the motor wont turn, and that you're now wanted for vandalism.

Re: Windscreen wiper motor assembly advice please
 

Cheers guys. The mounting was so corroded it fell off during transit anyway. Just wondered if there were any more issues to add to my woes haha

Re: Windscreen wiper motor assembly advice please
 

Well how are you going to fix it to your helmet then!:rolleyes:

Re: Windscreen wiper motor assembly advice please
 

Boom boom ;)

Re: Windscreen wiper motor assembly advice please
 

http://auto.howstuffworks.com/wiper1.htm

Use of worm gear will mean you will be unable to turn the motor. Unlike with ordinary gear trains, the direction of transmission (input shaft vs output shaft) is not reversible when using large reduction ratios, due to the greater friction involved between the worm and worm-wheel, when usually a single start (one spiral) worm is used. This can be an advantage when it is desired to eliminate any possibility of the output driving the input.

Hope this helps to explain.

Re: Windscreen wiper motor assembly advice please
 

We need at least a picture of the rotter.