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PostPosted: Tue Jan 16, 2018 7:48 pm 
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Some of you will have seen our restored DR2 and DR3 wiper motors on the stall at Mini shows. We have frequently been asked if we have 2 speed ones as fitted to works cars. I believe the source for them was Jaguar cars in the 1960's. Anyway, we have done a lot of internet research and built a lash-up version which operated on normal and fast speed and would also self park. After lots of testing we have tidied up the wiring and now have our first completed one ready, which we hope to bring to Bingley to demonstrate. If time permits we will try to prepare another one.
It will work from a normal mk1 and mk2 Mini light switch.
To sum up, they will be DR3A self park motors with 120 degree sweep (thanks to Peter Laidler for help), operating on standard and fast speed and hopefully will be much less than the £245 or so I see advertised on eBay. In addition some will have dates suitable for mk1 cars.


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PostPosted: Wed Jan 17, 2018 9:38 am 
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Location: In the Village.
Hi Nick,

After having seen the lash up version, I'd be very interested in one of these.

M

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PostPosted: Wed Jan 17, 2018 9:59 am 
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Me too Nick!

Tim


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PostPosted: Wed Jan 17, 2018 11:03 am 
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Thanks for the interest guys. I will reserve units for you. It may have to wait until after the Bingley show.


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PostPosted: Wed Jan 17, 2018 11:13 pm 
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Joined: Fri Jun 25, 2010 7:46 pm
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Location: Netherlands
I am lead to believe that the self-parking two-speed DR3A on works Mini's came from the Triumph TR250 (possibly with a different gear), but I could be wrong

_________________
1964 Austin Cooper S 1275
1965 Volvo Amazon Combi
1965 Austin Cooper 998
1967 Morris Minor 1000
1967 Austin Cooper 998 Mk II
1969 Austin Cooper S 1275
1972 Austin 1300GT (2x)
1975 Mini Jubilee
1978 Mini 1000
1991 Rover Cooper (Carburettor)


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PostPosted: Tue Jan 23, 2018 11:51 am 
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If you are after a complete neat and tidy 2 speed wiper motor with self parking then Nick's units sound like the best way to go. Two speed wipers are certainly worth fitting especially if you have a good power lump under the bonnet.

However I converted my own 1969 wiper motor to two speed about 30-40 years ago. It was after reading an article in Hot Car. Don't ask me the fine details because I can't remember but it involved taking out the 2 brush plate and substituting a 3 brush version which screwed straight in. Then I took a new wire back to the dash panel where the original wiper switch was substituted for a headlight/sidelight switch. That meant that the appearance of the dash was not altered, neither was the motor itself save for the extra wire that came out of it. I don't think any mention was made in the article about the self parking so I can't answer any question on that. Mine now doesn't work although I have a feeling that when I first did it, it did.


Graham


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PostPosted: Tue Jan 23, 2018 12:42 pm 
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Just a little comment Graham. There was a technical bulletin from Lucas about converting the later wiper motors to 2 speed as Graham says but I think that you have to use the two speed wiper switch too ( a simple job) because a second headlight switch isn't configured for the way the two speed operates. I got the tech bulletin from the Lucas rep who was our Uni point of contact and it's on the tech board of the forum somewhere - if Mark could highlight it.


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PostPosted: Tue Jan 23, 2018 1:06 pm 
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That's a good point Peter. As you say a headlight/sidelight switch will be configured differently in that when clicking through to the headlight setting power will still be going through the sidelight connection. That said I did use a headlight/sidelight switch and I got the 2 speed selection I was after. Don't ask me how I did it but I do remember trying to figure out which wire went where. However all these years later the motor still works at 2 speeds!

Graham


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PostPosted: Tue Jan 23, 2018 3:21 pm 
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Swapping the brush plate on a 14W is the way it converts from single speed to dual speed. The headlight toggle switch can be made into a two speed wiper switch by adding a link wire from (I think) from terminal 1 to terminal 8 on the rear of the switch. This enables it to self park. Pretty sure that the switch is now the wrong way up, so off is at the bottom when mounted in a standard panel which is easily sorted by filling another flat on the side of the switch so you can put it in the other way up.

That is if I recall everything correctly, it is 30+ years since I messed with that to put 2 speeds on the 1275GT and the Cooper. :shock: :shock:

With a DR3A it is a little more contrived, the motor has to come to pieces and an extra tapping added but you still need the switch.


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PostPosted: Tue Jan 23, 2018 7:43 pm 
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I think the point has been made that Graham's motor is a 14W. The swap to 2 speed is pretty easy with just a 3 brush setup needing fitting. The DR3 (and DR2) types don't have that facility. We have not added any brushes but have done an electrical fix, which is what Lucas did on these motors. There is very little room to spare inside a DR3 but we solved that problem by utilising an area usually reserved for an alternative self-park system.
Having done some costings it looks like we can start to offer these at £168 including VAT. I have been madly buying self parking motors from fleabay, most of which have 150 degree sweep. Useless on a Mini of course, but Peter Laidler has been more than helpful in converting my 150's to 120's.
We strip the motors down to the smallest parts, de-grease and bead blast everything including the screws. The motor cases go off for black crackle powder coating. We then re-assemble using selected parts and then we test. To add a bit of period detail we have cannibalised some of my saved mk1 looms and used wires from them. So we have 3 wires with original Lucas bullet connectors exiting the motor. The colour coding will change from one motor to another so you will need to follow our connection instructions. The Mini light switch lends itself perfectly to the job.


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