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Post by bbh on Jun 25, 2018 22:02:56 GMT
Has anyone fitted a Lucas DR3a two speed wiper motor (preferably the 3 wire version) to their Healey? It looks just like the DR2 original and fits on the same mountings ....  If yes, what switch did you use? |
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Post by healeyneil on Jun 28, 2018 17:33:45 GMT
Sunbeam Alpines changed from single speed to two speed wipers, while retaking the same fitting pattern, and they were 3 wire, so there is precedent. I will investigate the switch I have and look for a part number, but wiper wiring always seems a dark art to me !
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Post by bbh on Jun 28, 2018 19:17:57 GMT
Many thanks, glad of any info. I came across the following article www.thorden.dk/Teknik/two-speed.pdf which is good for helping understand what goes where. I haven't manage to track down the triumph switch he is referring to, as yet. However it appears that the off / on / on gives, off / fast wipe / slow wipe. I was hoping to get off / slow / fast, but perhaps that is asking too much !! |
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Post by healeyneil on Aug 3, 2018 15:48:06 GMT
Well, I finally got my Sunbeam wipers working today, partially thanks to the article above.My wiring diagram gave the wrong switch positions. Funny enough, it gives off/fast/slow but I cease to care ! BBH, Ive got a spare switch you are welcome to if you want. It is the flick type rather than pull, mind you
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Post by bbh on Aug 3, 2018 22:15:38 GMT
Glad you got things sorted. Did the switch you used have a reference number. Lucas 31788 was the one I think is right but a 35927, offers pretty much the same functionality. The only difference I can see is an added contact in position 1 at No2, which I wouldn't be using anyhow.
Did you wire:
No1 or No 7 to earth
No 4 to the fast lead
No 8 to the slow lead
I am planning to use toggle switches for every-thing, apart from the starter button.
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Post by healeyneil on Aug 4, 2018 10:03:52 GMT
Unfortunately, the switch has no part number on it. It doesnt have a contact at 2. I certainly had the earth to terminal 1. For 4 and 8 I think I wired them as you say. Certainly didnt work when I tried reversing those 2 wires
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Post by healeyneil on Oct 21, 2018 10:10:05 GMT
I ended up changing to a 14W wiper motor, as I wasnt happy with the original. The switch used is a 35927. I got the switch and info from Stafford Vehicle Components
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Post by bbh on Oct 21, 2018 19:23:26 GMT
Interestingly I spec'd the wiring harness to suit a 14W, with the plug end for the wiper connection and then decided to stay with the earlier model, albeit 2 speed, so am now converting back to suit.
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Post by healeyneil on Oct 21, 2018 22:00:21 GMT
Having got the original unit working, I was happy until I realised it was getting warm, obviously something not right. I've it a problem somewhere with power going back through earth connections, and I thought maybe the wiper motor was the problem. It's not 👹
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Post by bbh on Oct 23, 2018 19:50:43 GMT
If you want to be a bit more radical than either a two speed or the 14W, then the guy's on the Binky project have this up their sleeve!!
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Post by healeyneil on Oct 24, 2018 7:02:45 GMT
Some rather nice fabrication there !
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