pfenlon Posted October 19, 2019 Report Share Posted October 19, 2019 Wanted one brush for old plastic lucas washer bottle motor, no carbon left on one but the other is perfect. The brush is sort of fused onto its brass arm. If someone has an old knackered one pls let me know TIA. Quote Link to post Share on other sites
Charlie D Posted October 19, 2019 Report Share Posted October 19, 2019 Tom, Sorry I can’t help you, but it does pose the interesting question. How do you attach carbon to brass? I guess it’s quite a common occurrence with brushes. If there is an easy answer it would be quite simple to carve a new bit of carbon from any spare brush and attach it in place. I bet someone here knows the answer… Charlie. Quote Link to post Share on other sites
RogerH Posted October 19, 2019 Report Share Posted October 19, 2019 If you can fashion a new carbon contact then a silver loaded adhesive (Araldite do one), Or drill a hole in the brass where the carbon fits against. Shape the carbon so that a similar raise bit sits in the hole the use an Araldite adhesive on the back. Roger Quote Link to post Share on other sites
AlanT Posted October 20, 2019 Report Share Posted October 20, 2019 (edited) I fixed a whole batch of these for a chap in Ireland. I found that the older type of carbon-brushes had a mixture of carbon and copper and you can easily solder these in the usual way. This won't work with modern brush material which is all Carbon. By modern I mean post 1965 or so. Filing carbon-brushes to size is easy with a roughish file. PM me if you want some old copper based brushes. It's my belief they were originally done this way. These little motors are pretty delicate and prone to several problems, mainly to do with end-float. Something pulled the brush off. So you need to check the rest of it before breaking another one. Also the pressure the brush arm exerts on the commutator is quite important. Your arm looks bent in too much. Oh and watch out they are a handed pair because of the turned over end. Off load they run at about 8000 rpm. Nothing like this when working of course. Edited October 20, 2019 by AlanT add photos Quote Link to post Share on other sites
RobH Posted October 20, 2019 Report Share Posted October 20, 2019 Copper-graphite brushes still seem to be available: https://vikiwat.com/en/copper-graphite-brushes.html Quote Link to post Share on other sites
AlanT Posted October 20, 2019 Report Share Posted October 20, 2019 (edited) I was thinking about the brushes that are advertised for Lucas wiper and other motors. But this is an interesting supplier, it's in Bulgaria apparently. Edited October 20, 2019 by AlanT Quote Link to post Share on other sites
dave-lewis Posted October 22, 2019 Report Share Posted October 22, 2019 Hi Tom, I saw this on Ebay not sure if it fits yours or how to attach it. https://www.ebay.co.uk/itm/Lucas-DR2-DL2-DR3-6W-Pair-Classic-Car-Wiper-Motor-Brushes-508170-17H5396/222986655185?epid=2093775382&hash=item33eb0a55d1:g:4GwAAOSwew5bArHh Regards, Dave from Spain Quote Link to post Share on other sites
AlanT Posted October 22, 2019 Report Share Posted October 22, 2019 These are black carbon. Not tried but don't think these will solder. They are about 5 times the size needed for the tiny pump motors. I've loads of part worn copper ones for anybody needing them. Quote Link to post Share on other sites
pfenlon Posted October 25, 2019 Author Report Share Posted October 25, 2019 On 10/20/2019 at 12:42 PM, AlanT said: I fixed a whole batch of these for a chap in Ireland. I found that the older type of carbon-brushes had a mixture of carbon and copper and you can easily solder these in the usual way. This won't work with modern brush material which is all Carbon. By modern I mean post 1965 or so. Filing carbon-brushes to size is easy with a roughish file. PM me if you want some old copper based brushes. It's my belief they were originally done this way. These little motors are pretty delicate and prone to several problems, mainly to do with end-float. Something pulled the brush off. So you need to check the rest of it before breaking another one. Also the pressure the brush arm exerts on the commutator is quite important. Your arm looks bent in too much. Oh and watch out they are a handed pair because of the turned over end. Off load they run at about 8000 rpm. Nothing like this when working of course. Alan your in box is full, I cannot PM you Best Pete. Quote Link to post Share on other sites
pfenlon Posted October 25, 2019 Author Report Share Posted October 25, 2019 Alan your IN box is Full cannot send you a PM. Quote Link to post Share on other sites
JeffB Posted December 27, 2021 Report Share Posted December 27, 2021 (edited) Hi Alan. I tried unsuccessfully to send you an email. I have a 1968 Triumph TR250 and am attempting to rebuild the windshield washer motor, a Lucas 5SJ. It was in pretty bad shape when I took it apart but I think I cleaned up most of the corrosion. I reassembled and the armature now manually spins freely. However, one of the brush heads was missing, similiar to Pete's picture above. Regarding your earlier post, do you still have any brushes? I live in Los Angeles and can't find any source here in the United States for the parts. Thank you! Jeff Edited December 27, 2021 by JeffB Quote Link to post Share on other sites
billmahy Posted February 9 Report Share Posted February 9 I have the same problem restoring my Lucas 54711077 brushes on my Lucas 5SJ motor , but I've come across an interesting YouTube video on how to prepare the carbon brushes for soldering. This opens up a lot more options. Haven't tried it yet though. https://www.google.com/search?q=solderable+copper+carbon+brushes&client=firefox-b-d&sca_esv=e723f428ea636eb3&sxsrf=ACQVn0-nqM2KnVI0zEWyF8nkZ7ERbMs0RA%3A1707480038669&ei=5hPGZeusKKaBhbIPhoGo4AM&ved=0ahUKEwjrt6npmp6EAxWmQEEAHYYACjwQ4dUDCBA&uact=5&oq=solderable+copper+carbon+brushes&gs_lp=Egxnd3Mtd2l6LXNlcnAiIHNvbGRlcmFibGUgY29wcGVyIGNhcmJvbiBicnVzaGVzMggQABiABBiiBDIIEAAYiQUYogRIkytQrAlYyihwAXgAkAEAmAGnAaABwQqqAQQxLjEwuAEDyAEA-AEBwgIIEAAYgAQYsAPCAgkQABgeGA8YsAPCAgkQABgIGB4YsAPCAgsQABgIGB4YDxiwA8ICDRAAGAgYHhgPGLADGArCAgcQIxiwAhgnwgIKEAAYCBgHGB4YD8ICCBAAGAgYHhgNwgIKEAAYCBgeGA0YD8ICDBAAGAgYHhgNGA8YCsICCxAAGIAEGIoFGIYDwgIIEAAYHhgNGA_CAgoQIRgKGKABGMME4gMEGAEgQYgGAZAGCQ&sclient=gws-wiz-serp#fpstate=ive&vld=cid:7fe51b78,vid:FChkcXPRk0Y,st:0 Quote Link to post Share on other sites
barkerwilliams Posted February 18 Report Share Posted February 18 Great video. I did think that 12v brushes were a softer carbon than I would expect from a mains powered washing machine, but whatever the principle is very good. Alan Quote Link to post Share on other sites
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