Ron Posted October 2, 2023 Share Posted October 2, 2023 (edited) 2.5 mm is too thin. See if you can find 4 mm. Ron Edited October 2, 2023 by Ron Quote Link to comment Share on other sites More sharing options...
pawelcen Posted October 3, 2023 Author Share Posted October 3, 2023 Thanks Ron, this is 2.5mm squared. 😁 (mm²). You can cover such a cable with cotton? My friend did it while threading a shoelace. Cheers Pawel Quote Link to comment Share on other sites More sharing options...
welbike Posted October 3, 2023 Share Posted October 3, 2023 I cannot see on that page, what is the outer diameter, and is the lenght only 1 meter?? you will need a total of about 8 meters, the longest piece to the taillamp is about 2 meter. Why would you want it covered with cotton, this is totally not original! Cheers, Lex Quote Link to comment Share on other sites More sharing options...
Ron Posted October 3, 2023 Share Posted October 3, 2023 It says it's 2.5 mm Lex. Ron Quote Link to comment Share on other sites More sharing options...
pawelcen Posted October 3, 2023 Author Share Posted October 3, 2023 I thought the original ones were cotton covered. Just like in the photo of my lamp. I think the outer diameter will be about 4mm. The price is per meter. About 1Ł/m. I'll check it. Regards Pawel Quote Link to comment Share on other sites More sharing options...
welbike Posted October 3, 2023 Share Posted October 3, 2023 Ah, please read everything again, and you can also see on Ron's bike, it needs to be black rubber. Below an original wiring loom, and seperate wires. Lex Quote Link to comment Share on other sites More sharing options...
Ron Posted October 3, 2023 Share Posted October 3, 2023 Pawel you already know that your headlamp is post war, so don't use that wiring as a reference. 4mm black rubber as in Lex's pictures. Ron Quote Link to comment Share on other sites More sharing options...
pawelcen Posted October 3, 2023 Author Share Posted October 3, 2023 Thank you very much for help. I already know what to look for. I'll let you know what I bought. Cheers Pawel Quote Link to comment Share on other sites More sharing options...
pawelcen Posted October 3, 2023 Author Share Posted October 3, 2023 Hi, I found a 1 x 2,5 mm² silicone cable, but its outer diameter is only 3.4mm. Too little.☹️ Maybe it will be thicker from another manufacturer. Pawel Quote Link to comment Share on other sites More sharing options...
Ron Posted October 3, 2023 Share Posted October 3, 2023 Is this stuff any good Lex? It has writing which I guess can be rubbed off where it shows with Scotch Brite. Ron https://www.amazon.co.uk/Silicone-Flexible-Temperature-Insulated-Electron/dp/B095YCZF6N Quote Link to comment Share on other sites More sharing options...
pawelcen Posted October 6, 2023 Author Share Posted October 6, 2023 (edited) Hi, I bought a cable with an external diameter of 4 mm. I've already washed off the inscriptions. I'll try on the ends tomorrow. Many thank's. Another problem is the regulator. I bought it from Hitchcocks 20 years ago. Unfortunately, it has a different mounting. I'll try to make it as original as possible. Electrically it's ok. Cheers Pawel Edited October 6, 2023 by pawelcen Quote Link to comment Share on other sites More sharing options...
Ron Posted October 6, 2023 Share Posted October 6, 2023 (edited) Pawel that is an Indian made version of the post war MCR2 regulator. (I've never known one to work for more than a few weeks) You need the shorter MCR1 with frame tube mounts. Jan can make the conversion parts to clamp on frame if you want. There are very good electronic internals on the market that will easily fit in both types http://dynamoregulators.com/dvr2.php Ron Edited October 6, 2023 by Ron Quote Link to comment Share on other sites More sharing options...
pawelcen Posted October 6, 2023 Author Share Posted October 6, 2023 Thanks Ron, I have to think whether it makes sense to change a non-original regulator. Maybe I'll buy an old, faulty Lucas and change the electronics. I need to think. Cheers Quote Link to comment Share on other sites More sharing options...
Ron Posted October 6, 2023 Share Posted October 6, 2023 That's what I would do. Ron Quote Link to comment Share on other sites More sharing options...
Ron Posted October 6, 2023 Share Posted October 6, 2023 PS https://www.ebay.co.uk/itm/186108024129?hash=item2b54e71541:g:grQAAOSw~QFlHmxL&amdata=enc%3AAQAIAAAA8F2JmvpYVEfoz3gPN7oyzv1RbIG2rSH2JTp3Y7AnB6xMY8ag3X%2BAcMcwG4LXsWk3zFtUIDdTqNTvJ0VN8kXd9OJQeYgYXhG96U7fzm9V3BTh4gBB8zNm3bjZHWrDYyoMu8Z3Y2YVrVdCc%2Fs4%2FqlZGnHlMYWEjXwspYTr7rM%2BF8hlOQzK5vffUviD7Pvc%2BchHFb%2F4BFnVUUdM1M3l1eDdO0YYtABsBPJoKbzdmxkH1Fosyobi1652g6tSN7Gf%2BuyXV%2BQeKgmonrP8IedvQVocSA5toKcZ9zoOsRZHvBxHUiawpuKvwKCrXpMgHX2d8Z9p2w%3D%3D|tkp%3ABk9SR8r71uTgYg Ron Quote Link to comment Share on other sites More sharing options...
pawelcen Posted October 9, 2023 Author Share Posted October 9, 2023 Hi, MCR1 is mine. Thank you. Pawel Quote Link to comment Share on other sites More sharing options...
Ron Posted October 9, 2023 Share Posted October 9, 2023 Well done Pawel. He's the guy who makes the decent quality repro canvas grips. Ron Quote Link to comment Share on other sites More sharing options...
pawelcen Posted October 11, 2023 Author Share Posted October 11, 2023 Thanks Ron, I think mine had rubber grips. In the photo of the prototype from the REME Museum and on motorcycles from the beginning of the war, rubber is visible. Next question: Should the upper chain guard be attached as in the photo? Cheers Pawel Quote Link to comment Share on other sites More sharing options...
Ron Posted October 11, 2023 Share Posted October 11, 2023 Yes rubber grips for our SW's. You mean lower chain guard. Yes that looks ok. Ron Quote Link to comment Share on other sites More sharing options...
pawelcen Posted October 11, 2023 Author Share Posted October 11, 2023 Yes, lower. 😁 Quote Link to comment Share on other sites More sharing options...
pawelcen Posted October 11, 2023 Author Share Posted October 11, 2023 Hi, I need help again. Wasn't there a switch from dip beam to main beam on my bike? There was only one headlight? Does anyone have a wiring diagram for 1939/40 motorcycles? I only have a diagram for models from 1949 and younger with a dipper switch. Cheers Pawel Quote Link to comment Share on other sites More sharing options...
79x100 Posted October 11, 2023 Share Posted October 11, 2023 Yes, you're in luck. I recently bought a small quantity of pre-war Lucas wiring diagrams which included this November 1939-dated scheme "For Motorcycles used by H.M. Forces". It confirms what I found on my BEF-abandoned 1939 Norton...that WD machines from the outbreak of war were fitted with a dip switch along with the WD-type OTLH four-position main switch. Incidentally, MCR1 CVC regulators dated between September 1939 and mid-1942 were marked "Lead-Acid" to distinguish them from the Ni-Fe type that had been the pre-war standard WD fitment. It's only really noticeable on Nortons though, due to the location above the tool box. 1 1 Quote Link to comment Share on other sites More sharing options...
Ron Posted October 11, 2023 Share Posted October 11, 2023 (edited) However here is the diagram and text explaining about the headlamp bulb from my 1940 3SW and 5SW maintenance manual. It must be a generic diagram as it mentions the Norton Big 4 sidecar in the small print at the bottom. Ron Edited October 11, 2023 by Ron 1 1 Quote Link to comment Share on other sites More sharing options...
Ron Posted October 11, 2023 Share Posted October 11, 2023 But these bikes have dip switches. Then other pictures are without them. The "dimmer" switch is listed in my 5SW parts list. Hmmm! Possibly deleted with BO hoods? Will look at my 3SW list tomorrow. Ron 1 Quote Link to comment Share on other sites More sharing options...
79x100 Posted October 11, 2023 Share Posted October 11, 2023 Is there a print date on that, Ron ? The DME Circulars list gives a May 1941 date for removing the dipper switch and fitting "New type headlamp mask" (which would be the steel type rather than the card with a hole). It would make sense if the switch was deleted when the new masks were introduced. As far as I can tell, Nortons altered on production machines during the early part of 1941. Diagram W2053A clearly came later than W2049. Quote Link to comment Share on other sites More sharing options...
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