Wiper switches

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roymck
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Wiper switches

Post by roymck » Sun Mar 17, 2019 12:35 pm

The late Geoff Cooper wrote in Slice 229 that wiper switches for the Sabre are rare and expensive as they are shared with Jaguar XK150,s . He showed a photo of a switch and a box with part number 31975 .
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This is a V6 Coupe switch early style with no washer function and apart from a different part number the terminals all look in the same place .
Just wondered if it might be the same if somebody is stuck .
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guybetts
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Wiper switches

Post by guybetts » Sun Mar 17, 2019 7:54 pm

Straight Six is the same too. Mine's exactly like yours Roy, only the numbers following the part number are 1 64 - which I take to be a manufacturing date code, for Jan 1964.
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Wiper switches

Post by Old and Slow » Sun Mar 17, 2019 10:10 pm

Interesting.
What does the switch give you? Multi-speed? Self-parking?
Mine's a simple Lucas toggle switch, On/Off: wipers are single speed, non-self parking. Perhaps I should consider improving them?, but that might need a change of motor.


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guybetts
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Wiper switches

Post by guybetts » Sun Mar 17, 2019 10:31 pm

Two speed and self parking. The motor on the straight six is a Lucas DR3 (iirc)

Odd that your Sabre doesn't have a self parking motor, but perhaps it has something to do with its rally heritage. I would think the later motor fitted to the GTE's would be easier to obtain, and parts for them are more easily available, if you did consider improving yours.
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roymck
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Wiper switches

Post by roymck » Sun Mar 17, 2019 10:59 pm

Doesn’t the Sabre have 2 speeds and a self park that reverses the wiper action to park the wipers lower on the screen . Very much like the action of a SE5 and SE6 rear wiper action .



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Wiper switches

Post by Oaksey » Sun Mar 17, 2019 11:22 pm

If the Sabre uses the same motor as S6, I’ve got a few spares. Switches also


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Wiper switches

Post by heathsabre » Mon Mar 18, 2019 9:23 am

The Sabre Six and Sabre Four (and the Sabra) were fitted with the Lucas DR3 wiper motor. This was also original fitment to the Jaguar Mk1, no doubt amongst other cars of the day. I think the rotary switch was also fitted to the Jaguar Mk1. The attached description of operation and wiring diagram, produced by the late Geoff Cooper, describes the motor/ switch operation very well. I don't think this motor was fitted to the Coupé.
Sabre Wiper.pdf
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See below the wiper motor in the Sabre Six engine bay.
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Wiper switches

Post by chrisgallacher » Mon Mar 18, 2019 1:09 pm

After my wiper motor failed on the Devon Classic Rally in Sept 2017 I researched the DR3 twin-speed and park motor to try and understand how it worked. Luckily it turned out it was just my brushes which were completely worn down so I replaced these for £5 which saved my head from exploding.

Looks like Geoff faced the same challenge - that's a really useful guide. Thanks for posting Tony as I'd forgotten all about it.


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Wiper switches

Post by guybetts » Mon Mar 18, 2019 6:31 pm

Tony, that is the wiper motor fitted in my Straight Six coupe - with the square(ish) bodied motor housing.
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Wiper switches

Post by heathsabre » Mon Mar 18, 2019 11:01 pm

Guy, one sure way of identifying the DR3 is that it has six wires connected to it, as per the diagram attached to my earlier post.


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Wiper switches

Post by heathsabre » Tue Mar 19, 2019 7:30 am

An even more detailed description of the operation of the DR3 can be found here.


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Wiper switches

Post by Old and Slow » Tue Mar 19, 2019 1:18 pm

Thanks all, for following up on this topic.
Of course, nothing is standard on 660XYB!!
To begin with, the wiper motor is mounted under the dash by the passengers knees!!
If I get a chance I'll look at the motor terminals - this gives a clue as to whether it can self-park or run at more than one speed. Mine appears to be wired as simply as possible, without a separate live feed for parking etc.


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