Jeffds1360 Posted July 7, 2021 Author Report Share Posted July 7, 2021 (edited) Well, when I get it out, I will check it's number and do as PeterH suggested . I'm out to my garage in a minute. I'll let you know. Well its out. Had to grind and prise off the cover. NSK 6202Z. Very common. Prices from £5-8 so not bad. All I have to do now is remove the old rivets and find replacements Edited July 7, 2021 by Jeffds1360 job done Link to comment Share on other sites More sharing options...
daverclasper Posted July 11, 2021 Report Share Posted July 11, 2021 On 24/06/2021 at 13:09, Jeffds1360 said: Oh, forgot to say, it is working fantastically well! Pushing out 16+ on occasion Hi Jeff. Glad your getting sorted. Very interested in this. Is this a voltage test and result, taken from a bridge wire between the two dynamo terminals at idle speed. If not, any idea what rpm (about) to get the 16 and the higher figure, from the new dynamo. Cheers, Dave Link to comment Share on other sites More sharing options...
Jeffds1360 Posted July 11, 2021 Author Report Share Posted July 11, 2021 Actually Dave I just have a cheapy voltmeter plugged into a cig lighter! Not to technical As soon as she fires up and on tickover it reads 12.6. Up to 14+ with about 1200 rpm and it can go up to 16 if blipped. The new dynamo is exactly the same. The headlights do noticeably brighten as revs go from 800 to 10-1100. I've never actually studied the meter when under any load, lights on or anything but I'll do that next time I fire her up. I'll get my 'real' voltmeter out and check the accuracy and also the direct volts and amps and report back here. ATB Link to comment Share on other sites More sharing options...
daverclasper Posted July 11, 2021 Report Share Posted July 11, 2021 (edited) Thanks Jeff. All the books I have read, say the direct/bridge wire test should show 16v at idle. Three Dynamos I have (one a recon) show around 5. All 3 have got up to around 17 at around 1500 rpm. All have the ignition light going out at above idle. No/not enough charge going to battery for a few years now (new battery etc). So hoping, not a dynamo problem and if not, will look at control box/wiring etc Edited July 11, 2021 by daverclasper Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 12, 2021 Report Share Posted July 12, 2021 i would advise dont meddle with the control box settings a small twiddle can lead to blowing all your bulbs they are real orrible things to set up properly best replace any dodgy but in the end an alternator is so much more reliable these days Pete Link to comment Share on other sites More sharing options...
Jeffds1360 Posted July 12, 2021 Author Report Share Posted July 12, 2021 Is it 'safe' for the dynamo to push out 17v? I hear regulators are limited to 14.5. Could something get 'fried' ? Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 13, 2021 Report Share Posted July 13, 2021 you can end up with alot of blackend bulbs Pete Link to comment Share on other sites More sharing options...
daverclasper Posted July 13, 2021 Report Share Posted July 13, 2021 Ahh. Maybe, with my low charging issue, it's why I've only had to replace one bulb in 8 years (brake light)?. Dave Link to comment Share on other sites More sharing options...
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