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Natlas



Member Since: 20 Mar 2013
Location: West Sussex
Posts: 460

United Kingdom 2013 Defender 90 Puma 2.2 XS CSW Aintree Green
wiper motor runs but no wipers
When using the wipers I heard a clonk and the wipers stopped working, however, the wiper motor was still running, and strangely continues to run even after the wipers are switched off, so I had to remove the fuse to stop it whirring around. Seems something has come disconnected.
Any theories before I embark on removing all the dash? Thanks. 2.2 90 XS
88" Series One
Old Norton Smile
Minerva
Post #937320 12th Jan 2022 10:36am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16879

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
If the motor is still running then the park switch is doing nothing, either because it has failed or because the large gear wheel with the cam on it isn't turning so the switch isn't operating. If the latter, the wipers won't be working.

Generally a failure of the wipers to wipe is cause either by one or more locked wheelbox, in which case the motor won't be running so isn't the case here, or because a wheelbox fault means that the rack isn't moving the spindles. This is less likely here since you'd have to have a fault with both wheelboxes for neither wiper to work.

From your description I suggest the best course of action is to extract the motor and inspect the motor gearbox - it is likely that the gearbox contains the problem, whether it is the gear, park switch, or crank.

There are various threads on here which will tell you how to get the motor out without having to dismantle the entire dash. It isn't easy but can be done.
Post #937334 12th Jan 2022 12:09pm
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Natlas



Member Since: 20 Mar 2013
Location: West Sussex
Posts: 460

United Kingdom 2013 Defender 90 Puma 2.2 XS CSW Aintree Green
Thanks for the reply. I have been sent a video from the stealer that shows if you push one of the wipers they both move across the screen and back again but then stop moving, this is repeatable.
So going by your message below it is unlikely both wiper boxes have stopped working at the same time.
The stealer says it needs both wiper boxes and a cable but not a motor?
Any comment? 2.2 90 XS
88" Series One
Old Norton Smile
Minerva
Post #937371 12th Jan 2022 4:28pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16879

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
The motor has to come out to replace the cable, so I would remove the motor and look for the problem. If moving one wiper also movers the other, it is very unlikely that there is anything wrong with the wheelboxes.

The fault, I am sure, lies within the motor gearbox.
Post #937381 12th Jan 2022 5:18pm
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Leamreject



Member Since: 19 Dec 2020
Location: Middle Earth - Leamington Spa
Posts: 955

Italy 2011 Defender 90 Puma 2.4 HT Fuji White
The plastic gearing in the wipermotor gearbox has probably stripped Ride like you stole it!!
If I’m not on a bike it’s because only a 4x4 will do…
2011 2.4 Puma 90 HT
Post #937384 12th Jan 2022 5:39pm
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Natlas



Member Since: 20 Mar 2013
Location: West Sussex
Posts: 460

United Kingdom 2013 Defender 90 Puma 2.2 XS CSW Aintree Green
Thanks again for the inputs, with your help I was able to talk sensibly with the stealer who has now agreed to replace the whole wiper mechanism free of charge because they only fitted it 13 months ago and they have agreed to do it under parts warranty.
Alls well that ends well, even if somewhat inconvenient for both myself and the dealer.
Happy new year everyone Very Happy 2.2 90 XS
88" Series One
Old Norton Smile
Minerva
Post #937395 12th Jan 2022 6:51pm
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Ianh



Member Since: 17 Sep 2018
Location: Essex
Posts: 1766

United Kingdom 
That’s a good result if it’s new motor, wiper wheelbox’s and cable.
Once the new wheelbox’s are fitted pull up the rubber grommets, lube the spindles with 3 in 1 Oil, fill the grommets with red rubber grease and slide them back on . Then re oil and grease every 6 months.
That will stop water ingress and resulting corrosion. Ensuring they will last for many more years.
Post #937399 12th Jan 2022 7:35pm
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